flickering screen

Kevin B. O'Brien nadreck at palain.com
Sun Dec 14 00:06:26 UTC 2008

Jim wrote:
> Kevin B. O'Brien wrote:
>> Embarq Customer wrote:
>>> Dear All,
>>> I have a flickering screen when I play back videos on both VLC and Movie player.
>>> I have switched off the desktop effects following a suggestion on this forum. (I can't remember who suggested it, but thanks for the tip.)
>>> I downloaded Gnome last week to see if the problem would occur in a different environment. The screen flickers at about the same rate.
>>> Does anyone have any further ideas?
>>> I use a nvidea ATI 1300 radeon graphics card, I would be willing to pull it out if it will stop the flickering.
>>> Thanks in advance
>> I have had the same problem. When I first installed Kubuntu 8.10 on a 
>> brand new machine, I had flickering on everything, but installing the 
>> Nvidia driver cleared that up. But then I started to have problems of 
>> flickering only on video playback.
>> My first solution was to reboot, then I found that I only needed to log 
>> out and log back in.
>> Today I discovered that closing Amarok cleared it up. I have no idea why 
>> that works. I got there by happenstance, in that I was watching Miro, 
>> then opened Amarok, and after listening to music for about an hour, went 
>> back to Miro and observed the flickering was back. Since I knew that the 
>> *only* thing I had done in between wathcing with no flickering and 
>> having the flickering come back was listen to music on Amarok, I closed 
>> Amarok, and the flickering went away.
>> I don't know if this will help you, but this is what I have found so far.
>> Regards,
> What can happen when a screen flickers the resolution is to high for the 
> monitor to take, set it at 1024x768
> and see what happens
Well, in my case I am pretty sure that is not the issue. I have four 
boxes sharing this monitor via a KVM switch. The others are running at 
1280x1024 without any problem. So the monitor can handle it just fine.

Since in my case the problem is with a new machine, it could be 
something about the video driver, or something about the software 


Kevin B. O'Brien         TANSTAAFL
nadreck at palain.com      Linux User #333216

"Technology is a way of organizing the universe so that man doesn't have 
to experience it." -- Max Frisch

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