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• Best way to monitor host

  - by Axle

  I have just set up a host which receives messages from 300b to 1500b (wrapped stx etx)and replies with the same. It works fine but some times it receives junk data. Is there anyway to monitor this out of band data just so we can make sure we are not receiving massive amounts of it. Also is it possible to monitor if connections time out - where the host did not reply in time or long connections where it takes the host 20 seconds to reply when it normally takes 5. I am aware of IP monitor but I don't think it covers enough - Is there anything else or any other way? Thanks in advance!

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• Suitable companion monitors for HP LP3065 30" primary monitor

  - by Bittercoder

  I have an HP LP3065 30" monitor - now I want to add a couple of companion screens to either side of it - I've heard to people suggesting 21" monitors in portrait mode - but it seems difficult to find a suitable panel these day, as 22" wide-screen monitors have become common, and I can't seem to find anything with a suitable 1600 pixel width. Can anyone recommend a suitable monitor, and suggest what criteria are best for picking a suitable monitor - what's important to consider - I'm thinking things like: Exact resolution match? Viewing angle? Small/thin bezel?

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• Radeon hd 5700 monitor blank until connected HDMI device is started

  - by kaido loor

  Have win7, radeon hd 5700. When both PC monitor and HDMI device (Onkyo 607) are connected to Radeon card, the monitor diplays boot info, "starting windows, etc" but goes blank when "log into windows" should appear. Monitor comes back (w normal screen) if Onkyo and TV are turned on, not before. Multiple monitors is disabled. Really crazy. Any help appreciated. Generally, Onkyo can pick up HDMI signal ok, so at least smth works as intended.

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• How to get monitor resolution of 1680x1050 using ATI Radeon HD 2600 PRO in a dual monitor setup

  - by user7651

  I have Sapphire ATI Radeon HD 2600 PRO graphics card in my Windows Server 2008 x64 machine. It has two outputs a VGA and a DVI. I have connected the DVI to my Dell 24" monitor with 1900x1200 resolution and it works 100%. The VGA I have connected to my second monitor a Samsung 22" with native resolution of 1680x1050. But the ATI driver and Catalyst control centre doesn't show this resolution as an option. If I choose a lower resolution like 1280x1024 it looks really bad and fuzzy. I searched in google and downloaded the powerstrip tool that allowed me to create a custom resolution of 1680x1050 and then this option shows up in Catalyst control centre and my 2nd monitor works fine now. But I don't want to pay for an application to choose a display resolution. Why doesn't ATI show me that option by default even though it has no problem in actually supporting the display at resolution. Is there a way to get 1680x1050 resolution using ATI drivers only ?

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• Second monitor sometimes will not wake up

  - by peacedog

  My workstation has two monitors and Windows 7 (64bit). Sometimes when I lock my computer and later return and unlock it, the second monitor won't wake up. I have to turn that monitor off and on to get the picture back. They are identical monitors. The "#2" monitor is set as the main display, if that matters. I glanced at the power saving settings but didn't see anything noteworthy, and I'm not sure what I would be looking for (or if that is the right place to look) in the first place. It's not the end of the world but it is annoying. Help?

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• My monitor constantly changes from DVI-D to HD15

  - by guest

  I noticed this lately, and it's becoming more often. Basically, when I start my PC, my monitor, which is connected with a DVI-D cable (I don't know what it's called), screen switches to the HD15, where HD15 isn't connected at all. Like, input is changed from DVI-D to HD15, therefore it just blacks out, and then goes back... it's not constant, but it's in random time intervals... I can't do anything on my computer because of this. I even tried connecting it with both DVI-D cable and HD15 cable to the processor, but it still sucks. Is there any way I could force my monitor to stay at only one input method? I'm on XP SP3, and this monitor is about 10 or less years old, a Sony model.

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• How to disable monitor auto detection in Windows 7?

  - by Jay Yother

  I am currently running Windows 7 Ultimate 64-bit with a dual monitor setup with an NVIDIA 7950 GT graphics card. One monitor is dedicated to this machine and the other monitor is connected to a DVI KVM switch. When I switch to my other computer, Windows 7 disables the monitor. However, when I switch back it does not re-enable the monitor. The only circumstance that automatically re-enables the second monitor is when I switch back after Windows has put the monitors into power save mode. I am continually having to bring up the NVIDIA control panel to have it re-enable the monitor. Under Windows XP I would just disable the NVIDIA service to prevent it from auto-detecting the monitor (which doesn't solve the problem under Win7), and in Vista there was a registry hack that would prevent this. It looks as though that has been removed in Windows 7. I have found similar questions posted on this site, but nothing that matches my problem exactly. The following link is the question that comes the closest, but does not provide a solution to the problem. http://superuser.com/questions/96683/how-to-fix-monitor-detection-on-windows-7 Is there a way in Windows 7 to disable monitor auto-detection?

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• unable to sniff traffic despite network interface being in monitor or promiscuous mode

  - by user65126

  I'm trying to sniff out my network's wireless traffic but am having issues. I'm able to put the card in monitor mode, but am unable to see any traffic except broadcasts, multicasts and probe/beacon frames. I have two network interfaces on this laptop. One is connected normally to 'linksys' and the other is in monitor mode. The interface in monitor mode is on the right channel. I'm not associated with the access point because, as I understand, I don't need to if using monitor mode (vs promiscuous). When I try to ping the router ip, I'm not seeing that traffic show up in wireshark. Here's my ifconfig settings: daniel@seasonBlack:~$ ifconfig eth0 Link encap:Ethernet HWaddr 00:1f:29:9e:b2:89 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:16 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:112 errors:0 dropped:0 overruns:0 frame:0 TX packets:112 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:8518 (8.5 KB) TX bytes:8518 (8.5 KB) wlan0 Link encap:Ethernet HWaddr 00:21:00:34:f7:f4 inet addr:192.168.1.116 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::221:ff:fe34:f7f4/64 Scope:Link UP BROADCAST RUNNING MTU:1500 Metric:1 RX packets:9758 errors:0 dropped:0 overruns:0 frame:0 TX packets:4869 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:3291516 (3.2 MB) TX bytes:677386 (677.3 KB) wlan1 Link encap:UNSPEC HWaddr 00-02-72-7B-92-53-33-34-00-00-00-00-00-00-00-00 UP BROADCAST NOTRAILERS PROMISC ALLMULTI MTU:1500 Metric:1 RX packets:112754 errors:0 dropped:0 overruns:0 frame:0 TX packets:101 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:18569124 (18.5 MB) TX bytes:12874 (12.8 KB) wmaster0 Link encap:UNSPEC HWaddr 00-21-00-34-F7-F4-00-00-00-00-00-00-00-00-00-00 UP RUNNING MTU:0 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) wmaster1 Link encap:UNSPEC HWaddr 00-02-72-7B-92-53-00-00-00-00-00-00-00-00-00-00 UP RUNNING MTU:0 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Here's my iwconfig settings: daniel@seasonBlack:~$ iwconfig lo no wireless extensions. eth0 no wireless extensions. wmaster0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:"linksys" Mode:Managed Frequency:2.437 GHz Access Point: 00:18:F8:D6:17:34 Bit Rate=54 Mb/s Tx-Power=27 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=68/70 Signal level=-42 dBm Noise level=-69 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 wmaster1 no wireless extensions. wlan1 IEEE 802.11bg Mode:Monitor Frequency:2.437 GHz Tx-Power=27 dBm Retry long limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 Here's how I know I'm on the right channel: daniel@seasonBlack:~$ iwlist channel lo no frequency information. eth0 no frequency information. wmaster0 no frequency information. wlan0 11 channels in total; available frequencies : Channel 01 : 2.412 GHz Channel 02 : 2.417 GHz Channel 03 : 2.422 GHz Channel 04 : 2.427 GHz Channel 05 : 2.432 GHz Channel 06 : 2.437 GHz Channel 07 : 2.442 GHz Channel 08 : 2.447 GHz Channel 09 : 2.452 GHz Channel 10 : 2.457 GHz Channel 11 : 2.462 GHz Current Frequency=2.437 GHz (Channel 6) wmaster1 no frequency information. wlan1 11 channels in total; available frequencies : Channel 01 : 2.412 GHz Channel 02 : 2.417 GHz Channel 03 : 2.422 GHz Channel 04 : 2.427 GHz Channel 05 : 2.432 GHz Channel 06 : 2.437 GHz Channel 07 : 2.442 GHz Channel 08 : 2.447 GHz Channel 09 : 2.452 GHz Channel 10 : 2.457 GHz Channel 11 : 2.462 GHz Current Frequency=2.437 GHz (Channel 6)

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• I'd like my window switcher to be per-monitor. How do I do that?

  - by Erigami

  I have a multi-monitor setup with nVidia drivers, running Unity/Compiz on 12.10. I'd like to treat each monitor separately, so I can switch desktops on one without affecting the other and run a window switcher that only switches between windows on the current monitor. How do I do that? None of the switchers listed in ccsm seem to limit themselves to the currently focused monitor, ditto for desktop switchers.

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• Ubuntu Server 12.10 No GUI Headless Boot and/or Reboot

  - by Ubuntu User

  I have a headless server running the latest Ubuntu Server 12.10. It does not have any GUI at all. I am having the same issue that others are having which is that when you boot or reboot without a monitor (headless) the computer does not boot. The solution presented to others was to edit their xorg.conf file. But since I do not want a GUI installed (and therefore chose not to install a GUI after installing Ubuntu 12.10) I do not have a xorg.conf file in the /etc/X11/ directory. Ubuntu is a widely used distro of Linux, especially for server applications, I absolutely love it. Therefore, there has to be someone who solved this already?

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• Automatically kill a process if it exceeds a given amount of RAM

  - by chrisamiller

  I work on large-scale datasets. When testing new software, a script will sometimes sneak up on me, quickly grab all available RAM, and render my desktop unusable. I'd like a way to set a RAM limit for a process so that if it exceeds that amount, it will be killed automatically. A language-specific solution probably won't work, as I use all sorts of different tools (R, Perl, Python, Bash, etc). So is there some sort of process-monitor that will let me set a threshold amount of RAM and automatically kill a process if it uses more?

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• Computer Lab School for Orphans

  - by Brendon

  I am helping out an NGO, called Orphans Found Fund, here in Arusha Tanzania setup a computer lab to teach students about Ubuntu and open source applications. I have installed Ubuntu 10.10 on all the systems. What I'm wondering about is how to tweak the systems so that the kids cannot: Delete or alter system files Alter the system settings Add or remove applications Exceed a time limit (like an Internet Cafe) Also as the administrator I would like to monitor the usage for another system to make sure that abuse of network is not taking place. Any advice is much appreciated. Brendon

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• External display suddenly not detected

  - by NChase

  I have a Lenovo IdeaPad U410 running Ubuntu Desktop 13.04. I have an external monitor that I connect to via HDMI, and it's worked flawlessly for six months. I plug in my laptop, it detects the display. The "change display" key built into the laptop works for switching between the two screens. Never any problems. This afternoon, when I reconnected my computer after taking it into another room for a bit, it didn't work. When I open up Display settings, it can't detect the display. I tried disconnecting/reconnecting everything multiple times. And most strangely, that same "change display" key now behaves like a Super key, opening the dash instead of toggling the display. Nothing at all changed between when I plugged it in this morning and when it stopped working a few hours later. I tried xrandr, that doesn't detect it either. Anyone have any ideas?

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• Can't change screen resolution Ubuntu 10.04 (BT)

  - by Universal Coder

  I'm using Backtrack 5 R2 , what is based on Ubuntu 10.04 LTS. It is installed on Samsung Laptop , and default screen resolution in Windows for it is 1366x768 , but BT/Ubuntu Screen Resolution GUI tool (System=Preferences=Monitors) shows that only resolution available is 1024x768 , and called my monitor as "Unknown". Found a solution , that I have to change resolution in /usr/share/xresprobe/xorg.conf , but I did it , logged out/in and restarted many times , but it took me nowhere. Tried with xrandr , but it shows only mentioned 1024x768 as only solution , and when I tried to input needed resolution , but it did not accept it , because it is not available. As much as I googled , there are a lot of people that had similar problems with BT , but most of them solved with VirtualBox additional tools , but it can't help me , because I've installed it as second OS. In one forum read , that same problems is in Ubuntu 12 , so I ask this question here.

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• frequency out of range - please change display mode

  - by Dave

  I just downloaded the latest version of the Ubuntu live CD, and have installed it on a desktop computer (a Fujitsu Scaleo P). Once installed it seems to work perfectly, although there are some updates recommended in the Update Manager. My problem is that, after having installed these updates and restarted the computer, I get this message on my monitor, and no Ubuntu interface is visible: frequency out of range - please change display mode I do not know how to change this when I can't access an interface. Is there a command that will bypass trying to boot the GUI and let me change the display mode via a CLI? I am brand new to Ubuntu and any help on this would be much appreciated.

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• Switching to an external display, when primary is broken

  - by Shazzner

  I've successfully install Ubuntu 11.10 Desktop (x86) on an old(er) laptop that unfortunately has a broken screen, so there is an external monitor plugged in. On the livecd it come up on the secondary display just fine and I was able to install ubuntu and everything. Unfortunately when I reboot into Ubuntu proper now, the secondary display is off and I'm literally driving blind here trying to switch it to the secondary display. Using Nvidia open source drivers. Things I've tried: Rebooting back into livecd, mounting the partition and trying in vain to find a config file (it uses the open source drivers so no Xorg.conf I could edit manually) Trying to blind-type xrandr settings into what I hope is terminal: xrandr --output VGA1 --auto (nothing happened) Trying to blind install openssh-server so I could ssh into it and maybe configure it from my working computer. For some reason though, no luck. Ubuntu really should default to expanding to all screens for this use case.

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• Facing unity problems after upgrading to Ubuntu 12.04

  - by sh2515

  I upgraded to 12.04 and had problems with unity. So this is what I did 1) Ctrl + Alt + F1 sudo apt-get install compizconfig-settings-manager Export DISPLAY=:0 ccsm 2) Ctrl + Alt + F7 3) Enabled unityplugin 4) Ctrl + Alt + F1 unity --replace it worked with a couple of error messages now I have to put in start up application export DISPLAY=:0 unity --replace NVIDIA software recognises my monitor but ubuntu sees it as laptop. something isn't right can someone point out what info I need to put here for people to help. I have been upgrading this from 8 ish so have altered lots especially when compiz fusion first came out. Also if I run recovery session and type 'unity --replace' it starts and runs fine.

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• Keep Fullscreen Flash/Silverlight Video opened on Monitor 2

  - by Jonathan Sampson

  Like many of you, I'm working with two monitors. I'm trying to watch an episode on Channel9's vid-cast, but every time I click back onto my other monitor, the video exits fullscreen-mode, and goes back to a tiny box on the page. Is it possible to keep a video in full screen, while working on the second monitor?

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• Ubuntu 10.04 external monitor problem

  - by Ricky

  I've just installed the 10.04 release on my laptop. I've also installed the nvidia propietary driver as suggested by the system. I've some problem using an external monitor, i'm not able to set the correct resolution using the nvidia-setting utiloty. It doesn't recognize the right resolution of my external monitor. Any advice please? :) I'm a newbie.

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• Eyefinity resolution on third monitor

  - by Sam2299

  I'm now using three monitors with resolution capability of 1920x1080. The one monitor connected to Active Display Port is (from some reason) limited to 1440x900. Is there a way to increase the resolution of the third monitor to have all three at 1920X1080? My machine: Graphics card - AMD 5770 Processor - Intel Core i7-2600 Ram - 8GB OS - Windows 7 64bit. VGC(Video Graphics Controller) driver is up to date. Got this message:

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• Unable to connect Third monitor to my workstation

  - by Prashant

  I have Dell Optiplex 960 with ATI Radeon HD 3470 graphics card, which allowed me to hook two monitors to it. However there is still VGA port on mother board is unused. I tried plugging another monitor, surprisingly my third monitor doesn't directed. Can any one give me a hint how to fix this problem?

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• iMac 24" as a monitor for windows laptop

  - by Paul McKenzie

  The company I work for are about to give me a windows laptop, a thinkpad x200, so that I can work from home. It will have a dvi port for an external monitor via a docking station. I have a 24" iMac, can I use that as the external monitor?

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• Web traffic/activity monitor

  - by DealingWithAConcernedMom

  Is there a good free monitor that will allow me to monitor my son's internet activity. I'm specifically looking for history of websites visited and time spent on the site. I think that he is visiting sites that his mom would not approve of but is erasing the history etc.

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• Monitor ASP.NET Session State Variables

  - by Dave Johnson

  We are running a number of ASP.NET applications on W2K3 Server and IIS 6.0, and are looking for a way to be able to monitor ASP.NET session state variables (InProc) that are stored in memory. We are thinking there may be some memory optimization opportunities with some of these session state variables potentially consuming large amounts of RAM. Is there a way to accomplish this through IIS or Windows rather than instrumenting all of the individual Web apps with code to monitor the session state variables?

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• Browser resizing when the monitor turns on/off?

  - by Jason

  The last week or so I have noticed an odd thing. When I turn on my monitor, my browser windows are all half the size they were when I turned it off. Sometimes when I turn it on the taskbar is even half way up the screen for a few moments, as if turning the monitor on and off was forcing it to change the resolution. I use firefox, running windows 7.

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