main screen flickers every 10 seconds.
location: linuxquestions.com - date: August 5, 2013
Hi I have no problem with Ubuntu 13.04, Full Monty, Linux Mint and several other distros,but when running Ubuntu 12.04 LTS, linux snow, mageia 3 and others the main screen flickers every 10 seconds. Apart from this the graphics operate perfectly.
I have dual monitors and the 2nd screen does not flicker at all.
I have tried changing the screen resolution and refresh rate but the flicker continues.
Any ideas what causes this or how to resolve it please. thanks
Weird error message every 10 seconds in auth.log
location: ubuntuforums.com - date: February 20, 2011
Feb 20 15:19:53 ss4200 getty: /dev/tty: cannot open as standard input: No such device or address
Please help! I have no idea what it means.
CPU load peak every 10 seconds, causing mouse lag
location: linuxquestions.com - date: June 5, 2012
Freshly installed Ubuntu 12.04 64 bit, no tweaks:
I noticed a small lag in mouse movement (maybe 0.1 seconds) every now and then. Further investigation showed that this happens regularly every 10 seconds. Looking at the System Monitor, there is a small peak load (abt. 25% on a 3.1 GHz quad core) on one of the cores every 10 seconds. This falls together with the mouse lag.
The processor can change after a restart, but the effect on the mouse remains. The system runs smoothly otherwise.
See attached the CPU load, this time its CPU2 (red).
How can I find out which process is causing those peaks? "top" is certainly too slow. There are no kernel messages (dmesg) for this.
Oops, looks like I can not attach my screenshot.
PC calling DNS nameserver every 10 seconds
location: linuxquestions.com - date: February 18, 2013
I have 4 computers all using Ubuntu 12.04 all set up similarly but one of them is continuously calling the DNS nameserver every 10 or 20 seconds (not sure from the logs) but the network monitor is showing activity in/out every 10. Syslog says 20 and that it is a kernel notification.
I've tried blocking it with ufw but that hasn't given me any clue. Wireshark shows the source as IntelCor_<hex> and comparing it with the other 3 computers hasn't helped. Looking at running processes with top hasn't helped either.
Anybody have any other ideas before I rebuild this one?
[SOLVED] Experiencing freezing up to 5 seconds every 10 seconds, could these be the problem?
location: linuxquestions.com - date: November 15, 2009
(I just wrote this entire thing on my desktop with slackware and was about to submit it but it finally stopped working so I had to retype it on my laptop)
It wasn't as bad as before when it froze every 3 seconds. It freezes for 1~3 and even up to 5 seconds every 10 seconds now. I'm trying to figure out this cause. There is nothing wrong with the DVD because I bought it from slackware store and it's in perfect shape.
There isn't anything wrong with my hard drive because I reinstalled windows and I never experienced any trouble.
All I do on my desktop computer is use fluxbox as my wm, browse the Internet, use mplayer, xpdf, gimp, openoffice.org, torrent, irssi and I want to get involved with programming once I get used to linux. I didn't compile anything from source this time and went everything that's on slackbuilds. I removed things I didn't need which was (I know there's other things I didn't need but I just removed what I actually knew it was absolutely safe removing):
Black screen every 10 minutes (idle mode) driving me nuts!
location: ubuntuforums.com - date: February 25, 2012
I am using Precise Pangolin 12.04. Every 10 minutes, especially when using xbmc to view videos, or when my PC is idle, I get a black screen. And, I have to move my mouse to get rid of it.
OK, before you give me a bunch of suggestions, I can tell you that I already went to the power management option and disabled everything. I already removed the gnome-screensaver and xscreensaver.
Ran the commands:
xset s off
xset s noexpose
xset s noblank
setterm -blank 0
setterm -powersave off -powerdown off
Also, placed the above in my xinitrc.
I even download caffeine, but nothing works. I still get that damn black screen every 10 minutes.
The only thing that I Googled and that I didn't get to try is to modify xorg.conf, simply because there's no such file in Precise Pangolin distro.
Any solutions other than the above would be most appreciated. This black screen is driving me nuts.
Samsung SyncMaster 2343 Blank Screen Ubuntu 9.10
location: linuxquestions.com - date: January 16, 2010
Warning, ubuntu newbie
I've read about a half a dozen threads now on various problems such as mine but haven't found a solution which worked. I recently purchased a new LCD screen which has a native resolution of 2048x1152. After I plugged it in via DVI cable windows 7 picked up on the new display immediately and adjusted my resolution, but when I booted into Ubuntu I don't see either the circle thingy (initial splash screen), I don't see the Ubuntu with the slider deal flashing, and I don't ever get to the desktop. The hard drive is not active and all that happens is I see a flashing cursor then even that goes away after a second or so. I can get to Ubuntu's desktop if I boot to the recovery mode, login, then run "gdm", then it starts up just fine and defaults to the native resolution of my new monitor. How can I fix it so I don't have to do that?
- Bought new LCD screen, SyncMaster 2343, resolution 2048x1152 via DVI
- Will not boot normally to Ubuntu 9.1
upgraded to kubuntu 11.4: screen flickers after fullscreen openGL
location: linuxquestions.com - date: April 29, 2011
Yesterday I upgraded to kubuntu 11.4. When I now get an opgenGL-application on fullscreen, such as screensaver or youtube movie, the screen starts flickering really weird when returning to normal screen again. Haven't had this problem with previous version of kubuntu (10.4). When playing a movie with dragon player on fullscreen, I don't have this problem.
Installing the ati proprietary drivers is not an options, since my video card (ati radeon x700) is not supported by them since a long time).
Thanx for help
[SOLVED] System hangs after grub screen, Ubuntu 9.10 32bit
location: linuxquestions.com - date: February 3, 2010
So I just did a fresh install of 9.10 32bit on my media pc, booted right up the first couple of times however it choose to stop doing so for some reason. When it boots I see the words "Grub Loading" flash on the screen and then it just goes to a black screen with the white flashing line in the upper left hand corner...
I'm open to suggestions on how I can go about resolving this issue, the system was running well and I'm not sure what exactly changed... I just went to reboot it and it wouldn't come back online.
Also worth noting is that it is also failing to boot from a LiveCD for me, I get the screen where I select how I want to boot from the disc, I select "try Ubuntu with out any changes to my computer" and then after that it hangs again.
I'm fairly certain the hardware is good as it never had any issues like this on Windows 7 and I can still boot properly from a Windows based disc.
Cron job between every 10 minutes 8am and 2am
location: ubuntuforums.com - date: August 7, 2012
I'm trying to create a cron job that runs every 10 minutes between 8am and 2am the following day but cant work out how to do it.
*/10 8-2 * * * scriptname
which didn't seem to run at all even though it installed without error.
So i tried creating 2 jobs but it didn't start again this morning
*/10 8-0 * * * scriptname
*/10 0-2 * * * scriptname
any idea how I can achieve this?
I'm using ubuntu 12.04 64bit.
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