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I don't know why, but for some reason my screen just suddenly starts shaking,
but when I change the resolution, then change it back, it's okay again.
It appears to happen at random because sometimes it happens before I login,
sometimes after I login, and sometimes it doesn't happen at all, but when it does happen, it's really annoying.
I don't think this is a problem with Xorg because it happens in the terminal too.
Does anyone have any idea what's happening?
Thanks in advance
Last edited by fusionlord (2010-06-12 00:17:44)
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I used to see this on CRTs when there was electromagnetic interference pulling the beam off-target. A fan next to the screen would do it very reliably.
It's weird to see this on an LCD, though.
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I think I've had that problem before, at that time I hadn't had my laptop cleaned out. You might want to make sure your computer isn't overheating, which I think may have caused my problem previously
Someone call a doctor, my awesome configuration broke again! || To err is human -- to blame it on a computer is even more so.
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What graphics card are you on? Are you using KMS?
Last edited by egan (2010-06-10 23:44:01)
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I think I've had that problem before, at that time I hadn't had my laptop cleaned out. You might want to make sure your computer isn't overheating, which I think may have caused my problem previously
I don't think my computer is overheating -- it is running pretty coolly, and I've run it in way hotter times without problems.
Also, for some reason, this only happens in Arch (not Windows, not Mint, not Fedora).
What graphics card are you on? Are you using KMS?
I'm using an ATI integrated graphics (forgot what series though) and I do not know what is KMS.
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Are you using CRT monitor? Try degauss it.
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Or disable wobbly windows on compiz ...?
(sorry, just kidding - couldn't help myself)
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I don't quite understand what you mean by your screen is shaking...
KMS = Kernel Mode Setting. If you aren't using another driver, and you have hi-res TTYs then you are most likely using it, since it has been enabled by default in the last few kernels.
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Are you using CRT monitor? Try degauss it.
Nope, I'm using an LCD.
I don't quite understand what you mean by your screen is shaking...
KMS = Kernel Mode Setting. If you aren't using another driver, and you have hi-res TTYs then you are most likely using it, since it has been enabled by default in the last few kernels.
Yeah, then I think I am using KMS.
And by shaking, I mean the image gets a bit shifted, the edges are wobbly, and image shakes. It's almost like viewing PAL content on a NTSC TV. It's somewhat hard to describe.
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Then it looks like you have the same problem as I do:
http://bbs.archlinux.org/viewtopic.php?id=96426
I have a graphic there that should help people see what is going on.
The work around I do is to blank the screen, which fixes it just as you are with resolution change.
sleep 1; xset s activate
If you have nothing against a regular X driver, you can always disable KMS. I find KMS to be mostly superior though, except for this annoying problem.
Last edited by egan (2010-06-11 23:28:06)
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Thanks for your help, but since it is happening almost startup now, it's just too much of a hassle to run that command every time, so I've just disabled KMS. I really hope KMS gets mature enough to use in the future.
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You can add that command to /etc/rc.local to have it run on boot.
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With the latest Xorg and Kernel, I haven't encountered this problem at all --- seems to be fixed.
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