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• Why is my wireless so slow compared to my wired download speed?

  - by Shawn

  I just used speedtest.net (using Firefox) to compare my wired connection speed with my wireless connection speed. With my current contract (with Videotron), I'm supposed to get Download speed: 8Mbps Upload speed: 1Mbps Here are the results of the speedtest.net test: Wired Ping: 14ms Download speed: 8.41Mbps Upload speed: 1.04Mbps Wireless Ping: 16ms Download speed: 0.18Mbps Upload speed: 0.98Mbps The difference in download speeds seems staggering to me since I did the test 1 meter aways from my router. Any clue as to why my wireless download speed is so low compared to my wired download speed? using Ubuntu 11.04 on an Acer Aspire 5536-5519 Oh and it might be worth mentioning that my girlfriend has no trouble at all with her wireless connection. No slowness at all. (She uses Firefox on Windows 7 on a Dell) Here's the results for the same test on her system: Ping: 22ms Download speed; 8.44Mbps Upload speed: 1.02Mbps

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• Mint 13 does nothing when laptop lid is closed

  - by ewok

  I have a laptop running Mint 13. I have it hooked up to a 30" monitor and have no use for the laptop being open, so I put it on a shelf and close it. When I do that, the monitor goes blank. The power manager does not have an option for doing nothing when the lid is closed. The options are "Blank Screen", "Suspend", and "Shutdown". Is there a way to make the laptop not go to a blank screen when the lid is closed?

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• View changelog of all packages to be upgraded before upgrading

  - by Stein G. Strindhaug

  When using synaptic on my Ubuntu desktop computer i can review all changelog of all the packages to be upgraded, and unselect a package for upgrade if I want. On my desktop I usually install everything, but I like to at least review what the changes are so that I can delay the upgrade if I suspect it could cause problems with the development tools I use. On a server (Ubuntu Server) with no x-server how can I do the same thing on the console: list all packages that will be updated (apt-get --dry-run upgrade does this along with a lot of noisy simulated install messages), view the changelog (if any) from last upgrade to the version it will be upgraded to. select which packages I want to ignore, or which I want to upgrade I've searched a lot for this but I haven't found anything, possibly I'm not using the correct terminology; but surely this must be possible. Synaptic must get it's info from some some low-level tool I assume? Complicated shellscripts are welcome too, if this is not already easily done with the existing tools.

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• Could a DNSSEC at level n manipulate a zone at level n+2?

  - by jroith

  With some people wondering how DNSSEC could affect global censorship, I'd like to know if DNSSEC could protect a zone from being partially modified by a grandparent zone. (The point of this question is not to suggest that ICANN or it's members are not be trusted, but to figure out how DNSSEC affects the power they could exercise in theory.) For example: ICANN owns the root zone The .de zone is delegated to DENIC, Germany. Assume example.de is delegated to some 3rd party. Now, assuming DENIC does not remove example.de from their zone, would it be possible for them to redirect the subdomain abc.example.de elsewhere by returning signed records from the .de servers for abc.example.de ? Similarly, would it be possible for the DNS root to easily return signed fake records of a third-level domain xy.z while the second-level zone z is not participating in this and is not affected otherwise?

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• Fixing Broken Groups

  - by themaestro

  Hey, I just got onto a new project with the student government at my University and we're trying to get our webserver into a more workable state. The current problem is that all of us for some reason have sudo power on the server, but we can't write/create files anywhere on the server (as far as we can tell) currently. Our groups are currently as follows: /srv/ice/db$ groups goshri sshamim rmenezes goshri : goshri sshamim : sshamim ptx rmenezes : rmenezes ptx daifotis : daifotis ptx We added a few of us to ptx because we thought that might give us write access but it didn't. We have a bunch of webapps running on this server but since it's university things change hands quickly. What can we do to give us read access?

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• PC reboots regularly

  - by Bob

  Windows XP RAID 5 drives Intel Dual Core processor 2 GB Ram I am running a processor temperature monitor. It does not appear to be overheating. I do not have virus. The PC freezes and reboots. I do not think it is software related, because it will reboot if it is doing nothing. Could it be the power supply? Might i need to replace it? How do I diagnose this? Is this the kind of question that is appropriate here? I am not sure.

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• Music player for ubuntu similar to iTunes

  - by Allwar

  Hi, I really like Itunes as a music player but i can't get it to work in ubuntu so I need another one! functions i want: shuffle, low cpu usage, a friendly interface and free of bugs. (friendly interface = esay to use) why not use rythmbox, well it has bugs, the shuffle button doesn't work because it shuffles the next song after each song. So when i use it it's just a big loop over three different songs! i want the itunes look, like it shuffles once and lets you see in what order the songs will be played. //Alvar

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• Windows 8 taking 4+ mins to shutdown

  - by arnab321

  I did a fresh installation of Windows 8 64 bit, build 9200 (released on aug 16th). I installed the drivers and some basic softwares like NetBeans, mingw, iis server and php. For the first few times, it was restarting normally. But then at shutdown, it would show the shutdown screen for some seconds and then turn black for about 4 mins (similar to what happens at hibernation). I disabled the "fast startup" option in power options, but the problem still persists. Windows 7 and Ubuntu shut down normally. specs: 4gb ram, 750 gb sata hdd, solved by installing Windows Updates released during October. It was a serious bug in the OS, afaik. Now even hibernate takes upto 30 secs max. Still, win 8 is too buggy for release.

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• Computer crashes twice/thrice before booting into windows

  - by Adil Malik

  I need help. i built a PC, and it behaves very strangely. When i press the power button, the lights come on, fan maxes out, HDD spins, bios shows up etc and then it immediately crashes (powers down) before booting into windows. Then it powers on automatically and this time boots correctly. Sometimes there is just one failed boot and sometimes it takes 2 such boots to correctly start the computer. This unexpected shutdown never happens once it has booted in windows, just between the windows logo and bios menu. Any ideas?

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• Force shutdown a pc stuck in updating via Team Viewer

  - by Martheen Cahya Paulo

  Before I left office, I shutdown my work computer, leaving it in "Please do not power off..." screen. Now, when I log on to my own computer, I saw in Team Viewer that it's on. I thought it restarted instead of shutting down, but when I connect to it, it's still stuck in the previous screen. I've tried sending Ctrl-Alt-Del, but it seems to ignore it. I could still change its resolution via Team Viewer, and the fact that it respond my connection means it's not completely stalled. Is there anyway to shutdown it via Team Viewer?

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• Windows 7 does not 'wake up' from Sleep mode

  - by the watchmaker

  I'm new to Windows 7, so I don't know if this is normal. When the computer is idle for 30 minutes, the screen goes black and no key pressing or mouse movement will bring the computer out of standby. The computer is still running (fans and hard drive noise) but it will not respond and the screen remains black. The only way to get a response is to press and hold the power button until it goes off, then switch it back on. When it turns on it says "Resuming Windows" and then goes black again. Is this normal? Can the time-out delay be increased? Is there a better workaround than switching the PC on and off?

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• what to use instead of laptop-mode?

  - by playcat

  hello, i have ubuntu 10.10 64bit on hp 6735s (turion processor). it overheats, and i'm forced to use turion power control in order to keep core temperature to a reasonable level. one more measure that i use is putting my processors to conservative mode. that way, i'm perfectly happy with its performance, and heat is where it should be. however, after my latest upgrade, something happened - cores are back to ondemand by default, and i'm not sure if turionpowercontrol is working any more (ps axu | grep urion shows no process). in addition, i read somewhere that laptop-mode uses hdd spindown for preserving data/energy, and that hdds have only a limited amount of those spindowns, so laptop-mode usage can actually shorten the life of my hdd. i'm wondering if there is a good way to set my cores to automatically go to conservative mode? also, what's the good way to see what is the voltage my cores use? on windows i use cpuz tools. thx and sorry for the long explanation.

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• Difference between “system-on-chip” and “CPU”

  - by Tim

  Very confused, in some websites, they have this line: iPhone 5s CPU: Apple A7 other websites saying that: iPhone 5s System-on-chip: Apple 7 CPU: 1.3 GHz 64bit dual core other sources saying that iPhone 5s System-on-chip: Apple 7 CPU: 1.3 GHz 64bit dual core Apple 7 In Wikipedia, it said: The Apple A7 is a 64-bit system on a chip (SoC) designed by Apple Inc. It first appeared in the iPhone 5S, which was introduced on September 10, 2013. Apple states that it is up to twice as fast and has up to twice the graphics power compared to its predecessor, the Apple A6. While not the first 64-bit ARM CPU, it is the first to ship in a consumer smartphone or tablet computer. There are 2 sentences: The Apple A7 is a 64-bit system on a chip (SoC) and While not the first 64-bit ARM CPU Wikipedia also said “The A7 features an Apple-designed 64-bit 1.3–1.4 GHz ARMv8-A dual-core CPU, called Cyclone”. So System on chip is also CPU? very confused

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• Are there any 17-20 inch monitors that support displayport?

  - by WildJoe

  I've got dual monitors now (both 20 inch 1600x1200). After seeing the new eyefinity cards out there (and reading the CodingHorror post on three monitors) I've decided to get a third. It's time to upgrade my video card anyway. Since I don't already have a third monitor and will be buying one new, I figure it'd make sense to buy one that already had a DisplayPort interface so as to avoid the adapter issue. However, I can't seem to find any monitors on newegg that support this (it's not even an option in the power search, and a keyword search turned up only adapters and video cards). A quick google showed me several 30 inchers (like Dell's, but that's way too expensive, and I don't have that much room on my desk even if I had that money) and some 22 inch models. Again, I'm looking for a 17-20 inch with a DisplayPort interface built in. Any suggestions?

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• DELL Vostro 1520 bios crashed during update. now not giving even startup display

  - by Baahu

  my dell vostro 1520 crashed while i was installing drivers of windows 7 64bit. when i tried to update the bios it suddenly hanged. it remained in that state for a long time and was not getting off even by pressing and holding the power button. i removed the battery and after again installing the battery laptop is not giving any display of startup and all the caps lock lights are blinking. what the problem is this. i am worry about my laptop. please tell me the solution

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• When I plug an HDMI cable into my MacBook Pro with Retina Display, the resolution of the retina display changes

  - by Tyler Crompton

  I had an HDMI cable plugged in for a while that connected to a TV with no power. The retina display randomly flashed blue after a while and then changed to a different resolution (possibly 1080p). I unplugged the HDMI cable and nothing happened. So I restarted the computer to no avail. I was still having issues. So I fiddle with some settings after plugging in the HDMI cable again. Now, the retina display appears fine when no HDMI cable is plugged in, but when there is one plugged in, the resolution changes. I have mirroring turned off (which is what I want). The resolution of the retina display when an HDMI cable is plugged in is 3,360px x 2,100px (according to the size of a screenshot) and the external display is 1,600px is 900px. How can I fix the retina display to show with the correct resolution.

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• using one disk as cache for others

  - by HugoRune

  Hi Given a PC with several hard drives: Is it possible to use one fast disk as a giant file cache? I.e. automatically copying frequently accessed data to that one disk, and transparently redirecting reads and writes to that disk, so that other drives would only have be accessed occassionally. (writes would have to be forwarded to the other disks after a while of course) Advantages: the other drives could be powered down most of the time; reducing power, heat, noise speed of the other drives would not matter much. cache disk could be solid state. How can I set such a system up? What OS supports these options? Is this possible at all using Windows or Linux?

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• Tabbed terminal that connects to a GNU Screen session?

  - by screenuser

  I use the session feature of screen extensively. For example, I'll start a screen session for "project1" as "screen -S project1", and then when I need to reconnect I use "screen -d -r project1". This makes it easy to manage multiple projects, each with their own set of shell sessions. What I would love to do now is that when running on Windows and Linux, to be able to use a tabbed terminal program (such as gnome-terminal) to connect to a screen session and have all of the screen windows split out to separate tabs. This way I get all the usual power of screen, but with the convenience of a richer GUI experience. Is there any such terminal program available on Windows and/or Linux?

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• User for Public Network

  - by user71604

  my computer can catch the signal for many Access Points for the same network, while the network has problem with internet connection in some APs and it's working in others "all APs have the same SSID" Please advice if as i user i can force my computer to connect with specific AP neither than to go with the one with higher power (through MAC adress or IP)?. I am sure that my computer catch more than 10 signals for APs"All with same SSID". I am using windows 7 home primume 64 bit. as a user i dont have access to the AP config.

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• Configuring bridged network connection --- Windows 7 host, Ubuntu 10.04 guest --- VMWare Workstation 8

  - by H3br3wHamm3r81

  Here is my IPCONFIG /ALL from the host (Windows 7 64-bit): Here is my IFCONFIG from the guest (Ubuntu 10.04): To be honest, I don't have experience configuring a network between a host and a guest in VMWare (a virtual machine). I've searched high and low on the internet, but I haven't seen anything that can help. Perhaps I'm just not using the right keywords when I search. Nevertheless, does anyone here have any experience with establishing a network connection? Edit: One important note. I don't use DHCP to provide private addresses to the hosts on my LAN. I use "static" IP addresses on my internal network by configuring each IP address manually in the host's network configuration utility (I have TV's, XBOX 360, and a few PC's). I would like to configure the IP on the virtual machine guest manually as well. The reason is because my XBOX 360 only works properly using a static IP address. It will kick me off XBOX Live if it has one given by the router (via DHCP).

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• Windows: Should I install Server or stick with regular?

  - by stalker92

  I hope somebody can help me solve my dilemma. I have my home PC (using Windows 7) which I use for both work and leisure (gaming, surfing, movies etc.) I tend to never turn it off, only when I must reboot because some installation requires me to or when the power gets lost. But, sometimes Windows starts acting weird (usually after the long period of system uptime), per example eats up randomly all the space on my system partition etc. which is solved after the reset by itself. I was thinking to switch to Windows Server, I guess that it is more optimized for long uptime, well, obviously it is meant for use on servers. Can somebody with more experience with this help me decide is it worth it, will it solve these issues connected with long uptime periods? Thanks in advance.

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• Black screen on Windows 7 right after opening Google Sketchup or Minecraft

  - by Aero

  I get a black screen on Windows 7 right after opening Google Sketchup or Minecraft. I presume there are other applications that cause this too - but I have not tried to open them. The window initially stops responding for a few seconds, before I get a black screen and my Skype call ends abruptly. I have tried waiting for a few minutes but nothing happens. I have to power down my computer and then boot it up again. This is becoming an annoyance, and I don't know what's causing it. Here are my specs, if it helps: My graphics card is an ATI RADEON XPRESS 1100. If you need any more info or if I've missed anything please ask. Thanks :-)

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• Network card dies when trying to wake up laptop from sleep

  - by Bugmaster

  I have a Dell XPS 1640 laptop (aka Dell Studio XPS 16), running Vista. Whenever the laptop wakes up from sleep, my Broadcomm LAN card immediately dies. Any attempt to access it completely locks up whichever program I use to access it. There appears to be no way to re-awaken the card, other than rebooting; note that Vista does not even shut down properly if some program is waiting for the card. So far, I have tried the following: Disabled the "allow your computer to shut down this device to save power" in the device properties. This had no effect. Attempted to disable and then enable the card in the device properties. No effect. Tried ipconfig /renew: this locks up ipconfig to the point where I can't even kill its process. Force-install updated drivers from broadcomm: no effect. Does anyone have any other ideas ?

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• Xen VGA passthrough: is it possible to have dual GPU's with single monitor

  - by user489481

  I hate dual-booting between Windows when I want to play a game and Linux when I need to work. I don't fancy running Linux in a VM and Wine almost never works for me. So, I'm thinking about buying a new mainboard and CPU that is compatible with Xen's VGA passthrough and HVM virtualization. I want to be able to switch between the Linux Dom0 and Windows DomU with ease, but the problem is I need two GPU's and have only one monitor. Right now I have a nVidia GTX 260 in my PC, but I also have a Radeon 4850 sitting in my closet that I was going to sell. My question is, can I salvage the Radeon card to run the Dom0 and have the nVidia card run the DomU while having some kind of device/software to connect them a single monitor? Power supply and airflow issues aside. If not, what would you suggest? Is this even possible?

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• How does a winkydink Teradici offer high res, full FPS, 3D rendering on ESXi 5 VDIs for AutoCAD/SolidWorks/1080p YouTube applications?

  - by BlueToast

  How does such a small Teradici card ![enter image description here][1] offer high resolution, full FPS 3D graphics (1:38) http://www.youtube.com/watch?v=eXA4QMmfY5Y&feature=player_detailpage#t=97s for ESXi 5.0/5.1 VDI environments? We're shooting for an AutoCAD/SolidWorks/YouTube 1080p capable environment. I can't see how such a small and low profile card could possibly have the horsepower to handle such GPU computations for a big environment like that. We're going to have up to 64 VDIs per server, and are a 500-1000 employee count sized company. Someone enlighten me please! Determining which route to go (between RemoteFX and VMware View/PCoIP) and the hardware (NVIDIA 4GB non-Quadro/Tesla GPUs vs Teradici card). Servers have three 4x, three 8x, and one 16x PCI-E lane. Two of the 8x lanes will be occupied by SAS RAID cards.

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