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• How to calibrate ASUS k52f battery on Ubuntu?

  - by cutalion

  I'm not sure if the problem is in software or my battery is dying, I'll move my question to another forum if it's not a SO question I have a problem with the battery on my laptop - ASUS K52F. It shows incorrect information about capacity. When I unplug the charger it can work some time, but then it will power off without any warnings. Sometimes it will power off right after I unplug the charger. Here is some info I could get: > uname -a Linux alligator 3.5.0-18-generic #29-Ubuntu SMP Fri Oct 19 10:26:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux > acpi -i Battery 0: Charging, 99%, 18:25:15 until charged Battery 0: design capacity 5235 mAh, last full capacity 69964 mAh = 100% > cat /sys/class/power_supply/BAT0/uevent POWER_SUPPLY_NAME=BAT0 POWER_SUPPLY_STATUS=Charging POWER_SUPPLY_PRESENT=1 POWER_SUPPLY_TECHNOLOGY=Li-ion POWER_SUPPLY_CYCLE_COUNT=0 POWER_SUPPLY_VOLTAGE_MIN_DESIGN=10800000 POWER_SUPPLY_VOLTAGE_NOW=9246000 POWER_SUPPLY_POWER_NOW=176000 POWER_SUPPLY_ENERGY_FULL_DESIGN=**48400000** POWER_SUPPLY_ENERGY_FULL=**646822000** POWER_SUPPLY_ENERGY_NOW=**643588000** POWER_SUPPLY_MODEL_NAME=K52F-44 POWER_SUPPLY_MANUFACTURER=ASUSTek POWER_SUPPLY_SERIAL_NUMBER= I noticed, that POWER_SUPPLY_ENERGY_NOW and POWER_SUPPLY_ENERGY_FULL are greater than POWER_SUPPLY_ENERGY_FULL_DESIGN. I don't think it's ok :) I can run any additional commands.

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• Copying files between linux machines with strong authentication but without encryption

  - by Zizzencs

  I'm looking for a suitable program to copy files from one linux machine to another one. The program should be able to do authentication but it should not do encryption. The reason behind the latter is the lack of CPU power to do the encryption. I copy backups from ~70 machines to a single backup server simultaneously. The single server is an HP Proliant DL360 G7, with 10 Gbps ethernet connection and an FC storage backend that can do 4 Gbps. Through FTP I can write ~400MB/sec to the storage (that's about what I want) but through ssh with arcfour I can only do ~100MB/sec while having 100% CPU usage. That's why I want file transfers not to be encrypted. The alternatives that I found not really suitable: rcp: no authentication, forget it FTP: making the authentication "secure" (at least preventing plain-text password exchange) is possible but not really easy and I haven't found a method to force any FTP daemon to encrypt the control channel (for the authentication) and not to encrypt the data channel (for data transfers) SCP/SFTP: in farely recent ssh(d) implementations you can't turn off encryption. The best you can do is to use the arcfour cypher for the encryption but it sill uses too much CPU power for my needs. rsync over ssh: same problems as with SCP/SFTP. plain rsync: from the documentation of rsyncd: "The authentication protocol used in rsync is a 128 bit MD4 based challenge response system. This is fairly weak protection, though (with at least one brute-force hash-finding algorithm publicly available), so if you want really top-quality security, then I recommend that you run rsync over ssh." It's a no-go. Is there a protocol/program that can do exactly what I want? (A big plus would be if it could work on windows as well and/or if it would support rsync-stlye copying/synchronization (e.g. copy only the differences).)

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• Offline productivity

  - by Frank Meulenaar

  On some days I'm commuting 2hs (oneway) in the train. I don't have any mobile internet nor is there always WiFi service in the train. Because of security reasons I can't do any work in the train so I'm trying to work on my geek time. I'm looking for general solutions on how to do this (I'm on FireFox/Windows but I don't think it matters) Email works perfectly with gmail offline. It syncs directly when online and remembers complicated stuff. So far I used the ScrapBook plugin to store an website. It works good, but I have to download my favorite news page every day again - I want it to sync as soon as possible. It would even be more awesome if I could click a page on my desktop and my laptop would sync as soon as it has the chance. (edit: maybe the autosave plugin for scrapbook can do this) Similarily, I use the Downloadhelper plugin to download youtube vids, but I'd like something that automatically downloads videos from a given channel. Any tips are welcome. So far my early morning schedule is: wake up, power on laptop, make coffee, power off laptop and leave within 10 minutes (enough time for GMail to sync) but I can imagine a system where my laptop stays on during the night (or boots before I wake (and makes me coffee :])).

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• Suggestions for Backup solution

  - by jiewmeng

  i am considering between windows home server simple nas extra HDD's in desktop btw, i will be the main user i am looking to fulfil the following needs: reliability (i am think RAID 1 or 5) not so prone to virus/malware infections (will using a separate NAS or home server help? say windows home server is still a windows pc except separated by network?) power efficiency (eg. spin down when not in use) download (eg. i may want to dl big files/torrents overnight and i may not want to use a full powered PC for it? does a full pc vs NAS provide significant power usage to justify cost of new system esp. since i am only user?) performance (i guess i like to write/access my files fast, on 2nd thought, maybe for backup i can forgo this? maybe for a WD Green HDD? but how much slower will it be? plus since i am the only user, i think the whole HDD will be mine?)

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• System occasionally hangs boot process with SLES 11

  - by ThaMe90

  I have several (new) systems on which I had to install SLES11 on. However, after a few (though not every) reboots, the system hangs during the boot sequence. It will only continue after I physically press a key on the keyboard. From what I've found in the dmesg log from a failed boot is the following: [ 22.170276] sd 0:0:0:0: [sda] Mode Sense: b7 00 00 08 [ 22.171155] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 22.182760] sda: sda1 sda2 sda3 [ 22.383424] sd 0:0:0:0: [sda] Attached SCSI disk [ 22.545372] PM: Marking nosave pages: 000000000009a000 - 0000000000100000 [ 22.545377] PM: Marking nosave pages: 00000000bf780000 - 0000000100000000 [ 22.546217] PM: Basic memory bitmaps created [ 22.590380] PM: Basic memory bitmaps freed [ 22.596284] PM: Starting manual resume from disk [ 22.602319] PM: Resume from partition 8:1 [ 22.602321] PM: Checking hibernation image. [ 22.602479] PM: Error -22 checking image file [ 22.602481] PM: Resume from disk failed. [ 22.718727] kjournald starting. Commit interval 15 seconds [ 22.718960] EXT3-fs (sda3): using internal journal [ 22.718964] EXT3-fs (sda3): mounted filesystem with ordered data mode [ 1555.644404] udevd version 128 started [ 1555.697664] input: Power Button as /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0 [ 1555.707961] ACPI: Power Button [PWRB] I've looked around the internet for the PM: Resume from disk failed. message, but this seems to only be important when restoring the system after a hybernate, i.e. restore from the hdd. But this is not my situation. I only get this after a reboot, as I said before. The timestamp [ 1555.xxxxxx] is only the result of me pressing a key on the keyboard. Any suggestions on how to proceed? As I am getting stuck on this issue.

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• KVM Guest Reboot Loop

  - by javano

  I have been pulled into a situation where a KVM server (CentOS 6.2) lost power and upon reboot one of the guests hasn't started up again (XP SP3). I have SSH'ed in and someone must have changed something relating to the hyper visors prior to the power loss, but not rebooted all the guests. This particular guest wouldn't start because it was configured to use /usr/bin/qemu-system-x86_64 which isn't there now (assuming it was before?). I changed it to use /usr/libexec/qemu-kvm as this is what all the other guests on this server seem to be using, and its booting up. Using virt-manager on my local machine I can connect to the display of the XP machine and it gets as far as this screen; http://support.gateway.com/emachines/issues/2-1131285152-01.gif The problem I face now, is that which ever option I choose the machine just reboots. So it's and endless loop. I thought that perhaps a file system error maybe present due to the unclean shutdown. There is an XP SP3 ISO mounted under the guest, which I booted from in an attempt to access the recovery tools, but I don't have the Administrator password! I am out of ideas, and it's turning out to be quite the conundrum. Should I use a 3rd party live CD to test the FS for errors? How else can I trouble shoot these restarts?

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• Ubuntu Natty 11.04, Turning the wireless switch off; switches it off permanently!

  - by ZiGi

  i'm using an hp pavilion dv2000 i turned the wifi switch off by mistake, the LED turned orange and the wifi got disconnected. and now when i turn the switch on, it remains orange and the wifi still isn't functional. this happened before; i found a fix that worked searching google. it was done via terminal commands and i didn't have to download anything but i can't find the solution anymore! wlan0 shows up when i use: :~$iwconfig #BLA BLA BLA #... wlan0 IEEE 802.11abg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=off Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off more results: :~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operation not possible due to RF-kill :~$ rfkill list all 1: phy0: WirelessLAN Soft blocked: yes Hard blocked: yes :~$ sudo rfkill unblock all :~$ rfkill list all 1: phy0: WirelessLAN Soft blocked: no Hard blocked: yes :~$ sudo ifconfig wlan0 up SIOCSIFFLAGS: Operation not possible due to RF-kill it's still hard blocked! even though the switch is turned on; gives the same result eitherways a direction to a page with a working solution is a much appreciated answer!

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• Cisco 851 (IOS) router: FastEthernet 4 (WAN) got the shutdown flag.

  - by cjavapro

  At a customer location there was a Cisco 851 router (which uses IOS). The PCs on location were all of a sudden unable to connect. We came on site and found that FastEthernet 4 (the WAN port) was "administratively down". We ran these commands to resolve it config t interface fa4 no shutdown exit exit write Now the mystery is how the shutdown flag got there in the first place? The router was on battery backup... but during the outage it was power cycled by the customer. It is possible that there was a short outage by the ISP and that the power cycle caused the shutdown flag to come up. There may have been a hack or an attack pattern that caused the shutdown flag to come up. There may have been a hack or an attack pattern that the router to become unavailable and then caused the shutdown flag to be added on startup. Question: Does anybody have any clues? or at least remember that they had a shutdown flag come up on their WAN port also?

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• How can I pair two bluetooth dongles together?

  - by techaddict

  I want to hack a device which connects via USB, and plug a bluetooth USB dongle to the end of the USB cable (using a female to female adapter), and then connect to that device from another USB bluetooth dongle connected to my computer. How can I do this? It is straightforward? I don't want to spend $30 before I know how to do this. Also I think another concern is that the USB cable is providing power to the device. So I think that means I would also have to hack it for power. I have created this diagram in Photoshop to illustrate my intent: (NOTE: it won't be a USB mouse, as that would be pointless because there are already wireless mice in existence. The mouse is displayed for illustrative purposes) Don't tell me "it won't work". Because I KNOW it WILL work. Think for example, PS3 controller. That works, and in fact I was able to get it working with my laptop, over bluetooth. I just want to know HOW to make it work.

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• Computer crashes if left unattended AND running uTorrent, what could be?

  - by DiegoDD

  I have a weird problem in which, if I leave my computer unattended, AND I leave uTorrent open, downloading/seeding, the computer simply crashes after about 20 / 30 minutes (don't know exactly since if I leave it, and come back later, it has already restarted or has a BSOD.) If I leave the computer alone for undefined time WITHOUT uTorrent, nothing happens, and if I am constantly using the computer while using uTorrent, no problem either (I could be using it all day with uT open and it doesn't crash). So what could it be that the combination of those cases makes the computer crash? I have already checked the power management so the computer never enters stand by mode, sleep, hibernate, etc. (the only thing I do is turn off the display). A first guess is that maybe one of my external hard drives DO sleep or enters in a "low power" mode or something if I don't use the PC. but since uT is running MAYBE tries to use that drive, and makes it crash. Could that be possible? How to know for sure if the external drive does that, and to prevent it from doing so. Any more ideas of what may be causing that? Specs: Windows 7 Pro, 64-bit, 2 GB RAM. Latest version of uTorrent (although it has been happening for a while now). UPDATE: i just found out that uTorrent has Disk cache options ( preferences - advanced - disk cache ). I have no idea if that may be causing problems with my external drive, hence causing the crash.

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• Western Digital HDD disappears and reappears in BIOS

  - by tbkn23

  I know many people asked about similar problems, but I have a very specific case where I can't understand what's going on... I have a 3TB Western Digital Caviar Green disk connected in my Desktop, that also has a seagate 1.5TB disk and 2 SSD drives (OCZ and Sandisk). After working fine for quite some time (probably more than a year), suddenly my Caviar Green drive disappeared from windows. I checked the BIOS, and it wasn't there either. I opened my PC, played with the connectors, power, etc, but nothing helped. Even tried switching connectors with those of the 1.5TB disk, and nothing changed, the 1.5TB seagate was there, but the 3TB WD was not. Ok, now for the strange part. I have another desktop at home, so I took out my 3TB drive, connected it there, and it worked fine! I copied the most important files out of it, and then made another attempt in the original desktop. Surprise! It now appeared in the BIOS and worked fine! I even ran the SMART test with the WD tools and it said everything was intact. It doesn't end here. After leaving it overnight in the original desktop, it disappeared again in the morning. I repeated the entire process, connecting it to the second desktop, and there it is again working fine. Now for my question... Whats going on? The disk seems to be appearing on/off in my original Desktop, while other drives there work fine. SMART test says the disk is fine. Any ideas? Is the disk defective and should be replaced? Or maybe there's a problem with the controller in the desktop? I'm using a Gigabyte GA-880GA-UD3H motherboard and tried connecting the drive to both bridges (SATA2 and SATA3 bridges). Thanks EDIT: Power options are set never to turn off hard drives:

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• Datacentre Rack naming convention with flexibility for reassignment of server roles

  - by g18c

  We are just shifting across to a new rack and until now have used names of cartoon characters. This is not going to work anymore, and need a better naming convention. Physically i would like to name the servers by location, and then have an alias as to its actual function/customer, i.e. Physical name LONS1R1SVR1 meaning London, suite 1, rack 1, server 1 Customer Alias Since the servers can be reassigned from time to time, for the above physical server name, i would have an alias as a column in a spreadsheet, that would be set to the customers host-name, i.e. wwww.customerserver1.com Patching For patching, I am looking at labeling up the physically connections, i.e. LON1S1R1SVR1-PWR1 LON1S1R1SVR1-PWR2 LON1S1R1SVR1-ETH0 LON1S1R1SVR1-KVM Ultimately if i am labeling cables, I really want to avoid putting LON1S1R1SQLSVR on any patch cord in case the server gets formatted and changed from a SQL server to a WWW server which would need to relabel all the patch cords also. In addition, throwing in virtual machines, i have got confused very quickly. I appreciated that it may be confusing having a physical host-name and customer alias. Please let me know what you run with and any other standards or best practices that i can follow?

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• Figuring out which PC part is faulty

  - by Davy8

  I have an odd scenario and I'm having trouble figuring out which is the faulty component. First of all, the video doesn't work, monitor says it's not getting a signal. Monitor's not faulty (works on other computer) so the first suspect was video card. However 2 things make me think it's not the video card. (Don't have another machine with PCIe around to test definitively) First, the GPU fan is spinning so it's getting power. Second, tried putting in an older PCI video card that is known to be working (pulled out of another working machine) and there's still no video. Normally if it's not the video card I'd suspect the motherboard, but everything's getting power on the mobo, so I'm not sure. The case apparently doesn't have system speakers, so can't hear any of the diagnostic beeps either. Also not sure whether a faulty CPU would cause no image at all either. The parts are brand new so something's going to get RMA'd but I'm not sure which component is to blame in this case. (Only slightly related, but I also accidentally put too much thermal paste on the CPU. The fan/heatsink instructions said to put the whole tube which seemed like a lot compared to previous experience, and as I started squeezing I knew it was definitely too much and stopped at about 1/3 but against my better judgement I didn't wipe any off. I'm not sure whether that would cause problems other than not cooling as effectively as it should)

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• Screen randomly goes blue/black/white

  - by FubsyGamer

  Problem Randomly, while using my computer, the monitor goes dark grey/almost black, or it goes white with faint grey vertical lines, or it goes blue with black vertical lines. It's as if the computer powers off. People tell me I sign out of Skype, Spotify stops playing when it happens, etc. When I look at the tower, it doesn't seem like it's off at all. Nothing changes, fans are spinning, lights are on, etc. If you were only looking at the tower, you'd never know there was a problem The only way I can get it to come back up is to push and hold the power button and turn it off, then back on This never happens while I'm playing video games. I've done 5-6 hour sessions of League of Legends, and it doesn't do anything When I'm just browsing the web, reading email, checking Reddit, etc, it happens all the time. It can happen multiple times in a session, it usually takes only about 5 minutes from the time I start browsing to when the computer crashes This started happening after I moved to a new apartment (this has to be relevant somehow, it was not happening where I lived before) There is nothing in the crash logs or event logs System Specs i5 2500k CPU AMD Radeon 6800 GPU Gigabyte z68a-d3h-b3 motherboard WD VelociRaptor 1 TB HDD Screenshots Device manager About screen Things I have tried I was getting a WMI Error in my event logs, but I fixed it using Microsoft's fix, KB 2545227 I was using Windows 8. I wiped the HDD and downgraded to Windows 7 64 bit I took out the video card and used a can of air to totally clean out the video card, all fans, and the inside of the computer in general. I made sure all of the video card pins were fine, then reconnected it I tried to update my motherboard BIOS, but anything I downloaded from Gigabyte was only for 32 bit machines, not 64. I don't even know how to tell what my motherboard BIOS is at right now I am using a power strip, and anything else connected to it works just fine If I re-seat the monitor cable while this is happening, nothing changes Please, help me. I've been battling this for several weeks now, and it's so frustrating it makes me not even want to use the computer.

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• How to fix high Load_Cycle_Count laptop drive (TOSHIBA MK6006GAH in Vaio TX1XP)?

  - by Sam Brightman

  Hoping someone knows exactly what's going on here. It seems this drive has some combination of aggressive power saving settings and Ubuntu defaults that has massively increased the Load_Cycle_Count for the drive: https://wiki.ubuntu.com/DanielHahler/Bug59695 So the drive is now so slow that it cannot boot because it takes long enough to access the data that the kernel will not recognise it properly. I'm not worried about the data on the drive, but would really like to keep the laptop functioning. There is some indication that this is possible because the figure is still low 200,000s and most drives supposedly go to 600,000. Additionally, SMART tests pass and consider the drive healthy and without errors. But the really surprising thing was when I ran mhdd... Every single read came up red (slow) until I pressed 'R' for reset drive. I noticed the next read was normal speed, so held down 'R'. Magically the drive read perfectly for as long as I held the key BUT resumed slow (and noisy) seeking/reading after releasing. I don't think the source code to mhdd is available, so I'm not exactly sure what this means (besides, I don't know enough low-level HDD stuff either). It seems like the drive should be able to work, but is stuck trying to power save or something. There are no BIOS options on the laptop. Does anyone know how I can stop the drive from doing extremely slow/noisy operations like this? Or is constantly resetting the drive also damanging, and only causing it to work well by luck (i.e. not a suggestion that it's fixable)?

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• System x3550 M2 stuck on system initializing after firmware upgrades

  - by itmanager223

  Hey guys so i have been having this major issue for the last few hours now. I have a system x 3550M2 server and i ran the UEFI and IMM firmware upgrades within windows server 2008 R2 x64. All upgrades went fine and i was told to reboot. I performed the reboot cleanly using the OS restart option. Upon restarting it showed the system initializing screen and it stayed there for a good hour. After that hour i figured it froze and so i powered down and power up again. Now i can not boot back up to even see the IBM splash screen or the OS... I have tried switching the Jumpers to go to the backup UEFI and backup IMM and no luck. I have also reset the CMOS power and i have pressed the reset button 3 times on the light path and no luck. There are no lights light on the light path to indicate anything is broken. The only thing i see on the light path is the number 0.5. Any ideas guys i am quite stumped with this problem. Thanks a lot, Dani Cela

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• Latitude D600 USB port problem

  - by Moab

  Both USB ports stopped communicating on my D600, they have power, my optical mouse still lights up, no device works on the ports, everything is fine in Device manager in Dual boot XP and W7. Checked the bios, not much in there for USB. No usb device shows up when I use the F12 boot device menu either, so it must be some hardware issue. I have another hard drive with Ubuntu on it, popped it in and USB does not communicate with it either. Appears to have 5v but no communication, any Ideas besides another motherboard or USB card for the pcmcia slot (these don't work to well from my research)? I mostly use them for mass storage devices and pcmcia slots don't supply enough power for these devices. Thanks to all who answer with last ditch efforts. I hate to give up on it, its been good to me and still runs rather well for its vintage. EDIT: I did inspect the ports with a flashlight and did a partial disassembly of the laptop in an attempt to check the solder joints, but would require complete motherboard removal to see them, that is where I stopped. .

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• Second CPU missing of Dual Core

  - by Zardoz

  My Lenovo T61 has a dual core CPU. I just noticed that under Ubuntu 10.10 only one CPU is recognized. I know that once both CPUs worked. Not sure since when the second CPU is missing. Maybe since the last kernel update. Currently I am using linux-image-2.6.35-23-generic (for x86_64). What can I do to enable the second CPU again? Here the ouput of /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU T8100 @ 2.10GHz stepping : 6 cpu MHz : 800.000 cache size : 3072 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 lahf_lm ida dts tpr_shadow vnmi flexpriority bogomips : 4189.99 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: Any help is welcome. I really need that CPU power for my work here.

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• How to diagnose issue between mobo, RAID, and SSD cache drive? [migrated]

  - by goober

  Background This issue is happening on my custom-built desktop. Relevant specs: Motherboard: ASUS P8Z68-V PRO Utilizing Intel RST technology (application that uses unused SSD as cache) Processor: Intel core i7-2600k (not overclocked) HDDs: RAID1 of 2x Seagate Barracuda 1TB (ST31000524AS) (RAID performed via z68 chipset) Machine has run fine for ~1 year with no issues, and has been well-maintained (dust, etc.) What Happened Random Freezing issues -- intermittent Looked at the RST application screen to see that the acceleration cache was listed as "unavailable" -- recommended that I power down and reconnect the drive. Reconnected the drive to no avail. Attempted to move the drive to another SATA port. Acceleration option disappeared from RST software. Now, the freeze happens whenever loading something particularly data-driven (a video, a game, etc.) Steps Attempted Reconnected the drive to no avail. Updated Intel RST software to v. 11.6.0.1030 to see if that made a difference. Attempted to move the drive to another SATA port. Acceleration option disappeared from RST software. Connected the drive as its own volume. Formatted it, ran disk check errors -- all seems fine. Reconnected the drive and selected it again as the cache drive. Now, what happens when there is a freeze: Machine freezes I am unable to perform any command Screen then goes black I hit the reset button During boot, all drives show as "Disabled" and I am told no volume can be found I then hit the reset button (or power off/on) again. Either the next time (or sometimes after repeating this once more), the metadata cache is reconstructed and the system boots fine, showing the SSD as a cache. Question I believe this is an issue with the SSD itself, but how can I be sure since connecting it separately appeared to show no problems? I want to make sure it's not an issue with the motherboard, SATA ports, etc.

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• WIN7 constant BSOD 0x7B on boot, not producing any dump files where to go from here?

  - by prayingpantis

  So my one win 7 pc has been getting a BSOD on boot (roughly a sec after load screen starts) after a power failure. The complete stop code is 0x0000007B (0x80786B58, 0xC0000034,0x00000000,0x00000000) I've searched for quite a while now on the net and it seems like most people gave up after gettting 0x7B and no dump files. What I've tried so far: startup repair - reports it cannot repair computer automatically. BadPatch is reported somewhere in a problem signature contained in the problem details. startup repair with a WIN 7 CD - also fails, I can't recall what the error was, but it was not the same as the error produced with the start up tool shipped with the version of WIN 7 installed on my machine (I think the text had something ACL-ish contained in it) used a boot disk (Hiren's boot iso) - I used it to enable the CrashDump registry key and then after BSOD, read the HDD's dump locations but it was empty. Note, I'm quite sure the registry keys I edited are the correct ones, since the reboot on BSOD option was enabled by default and after I changed the regkey controlling this functionalitty to 0 the BSOD stayed after I booted again. check disk - works and returns no problems, also it seems I'm able to access all my files on the HDD. mem test - works and returns no errors So I'm not sure what else I can do to figure out what is the problem here. I read somewhere that you can use WINDBG to remote debug another PC, but I'm not sure if this is possible since the OS isn't even loaded yet? Also the last driver change I made on the system was installing a video driver, but I had no problems with it and were able to reboot several times until the power outage happened and the BSOD appeared. Any help or guidance for a way to DEBUG this problem would really be appreciated (I'm not really that keen to try a whole bunch of random fixes, I'd rather try and narrow down the problem first).

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• Rendering a frame is producing noise from speakers in Windows and Linux

  - by Robber

  When any hardware accelerated application is rendering a frame (or many of them) a very short noise is coming from my speakers. This can be a game, a WebGL application or XBMC. When the application/game is rendering many frames per second (like most of them do) the noise is a continuous buzzing that gets higher pitched with higher framerates. This applies to Linux and Windows, so I'd assume it's a hardware problem. The current hardware in the PC is: CPU: Core2Quad Q9550 GPU: Radeon HD 5770 RAM: 2x2GB DDR2 Motherboard: Asus P5QLD PRO PSU: be quiet! Pure Power 530W Screen and speakers: Old 720p LCD TV connected via VGA and aux cable Muting the TV stops the noise, muting Windows doesn't. I tried replacing the PSU first (used a Tagan 700W PSU before) because I thought it was a power problem. It wasn't. I tried replacing the motherboard (used a ASUS P5B SE before) next because I thought it was a sound card problem. It wasn't. I tried the GPU in a different PC because I thought it was a broken graphics card. It worked perfectly fine in the other PC. I thought it might be interference, but moving the audio cable around changes absolutely nothing. I tried using an HDMI cable instead and that did work, but is not an option since my TV has only one HDMI input and I need that for my PS3.

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• Getting dwl-g122 to work on ubuntu

  - by User1

  I have a USB WiFi adapter, D-Link dwl-g122. I'm running Ubuntu 10.4. My laptop has a built-in wireless card that is connecting fine to the router. I plug in the usb and it never really connects. Here are some details: iwconfig wlan1 IEEE 802.11bg ESSID:"\x0B\xE1..." Mode:Managed Frequency:2.457 GHz Access Point: Not-Associated Tx-Power=19 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:on lshw -c network: *-network:1 description: Wireless interface physical id: 3 logical name: wlan1 serial: 00:13:46:8b:xx:xx capabilities: ethernet physical wireless configuration: broadcast=yes multicast=yes wireless=IEEE 802.11bg dmesg [ 1096.814176] wlan1: direct probe to AP xxx (try 1) [ 1096.820960] wlan1: direct probe responded [ 1096.820969] wlan1: authenticate with AP xxx (try 1) [ 1096.823790] wlan1: authenticated [ 1096.823869] wlan1: associate with AP xxx (try 1) [ 1096.827667] wlan1: RX AssocResp from xxx (capab=0x411 status=0 aid=1) [ 1096.827674] wlan1: associated [ 1142.590912] wlan1: deauthenticating from xxx by local choice (reason=3) lsmod|rt2 rt2500usb 19643 0 rt2x00usb 11260 1 rt2500usb rt2x00lib 32133 2 rt2500usb,rt2x00usb mac80211 238896 3 ath5k,rt2x00usb,rt2x00lib cfg80211 148725 4 ath5k,ath,rt2x00lib,mac80211 led_class 3764 3 ath5k,rt2x00lib,sdhci It looks like the driver loads but it doesn't feel like connecting. The behavior is identical even if I blacklist the other wifi card (using an ath5k driver). It's almost like it is using the wrong password or something. Does anyone know what is happening? Is anyone using Ubuntu successful?

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• Problems reviving old pc including graphics card issue.

  - by Mick

  I have a PC that seemed to have died years ago that I am trying to revive. It has a dual core athlon processor and a gigabyte motherboard. It had two dual output graphics cards, and I have long since forgotten which output would print out the diagnostic information as the PC starts up. Also I suspect that the resolution set on all the monitors was probably higher than my current single monitor is capable of displaying. The motherboard also has a built in graphics card, so I thought it may be simplest to remove both the graphics cards and plug my monitor into the onboard graphics just while I get things going. Does that seem sensible? Now the other problem: The PC has two hard drives. I have no idea which one is the primary one it is attempting to boot from. When I power up, the fan comes on and I hear some chuga-chuga-pause chuga-chuga-pause repeat indefinitely. I'm not sure which device is making the noise. There are no-beeps at any time. I see nothing on the screen at any time, not even for a second. Any suggestions? EDIT: If T start up the PC without the power connected to the CDrom there is no chuga-chugan noise.

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• My laptop screen keeps dimming

  - by Rowland

  I have a Cryo laptop with Windows 7 installed, bought in December 2011. Sometimes the screen seems to persistently dim and/or brighten up, even as I am doing things. In fact the brightness is varying even as I type this. The battery is always fully charged and connected to the mains. I have checked many times the battery/power-saving settings always leaving the settings the same way; full brightness and never dimming when on the mains. Yet when the screen starts playing up I can end up with the screen dimming and brightening almost continuously. I once went to the "adjust screen brightness" window when the screen had dimmed. I found the brightness slider on 100% (as I expected) but, as I dragged it to the left, to dim the screen, it first brightened and then started dimming, i.e. the screen setting said 100% brightness but it was only at, maybe 80%. I have checked with Cryo and they just say check the power settings. I know what these are and how to work them and always set them to never dim/full brightness, yet still my laptop starts this dimming every so often.

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• Bootable ISO to USB stick xp quickest method

  - by brux

  My dog took a leak on my PC when I went out (ye funny), now it reandomly restarts - I'm convinced the HDD is failing because the Windows seagate diagnostic program fails on a few tests. I want to run this prior to windows in an attempt to try and recover sectors, the program includes an iso which can be written to cd and booted, but i dont have any cd's. I tried using unetbootin to create the bootable usb from the iso file (SeaToolsDOS222ALL.576.ISO) but it doesnt work. When i boot from the usb hdd unetbootin loads with "default" in the menu. No joy booting though. I checked the usb hdd in windows and all the files are there, extracted from the iso file, wont boot though. Any ideas? Im using windows xp. More info - when the computer restarts (like i just did now) it constantly reaches the end of POST and then restarts in infinite loop. If I pull the power cable out it will get back into windows, the longer i leave it between attempts, the longer I am able to stay in windows until it restarts. i.e if i leave the power cable out 5 minutes it will stay operable for longer than if i had left it out for only a few seconds.

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