High /usr/bin/X CPU Usage

[Marty Jack]

On 09/07/2011 02:49 AM, Robert Massaioli wrote:
> Hi Tormod and Chris,
> 
> Thankyou for the great responses so far! But unfortunately still no luck. Let me explain the results of what happened after I tried what was suggested.
> 
> I tried looking into the CPU and GPU issues that people were mentioning but, after having the computer running for 8 hours straight the CPU was sitting at 40C and the Graphics GPU was sitting at 27C (C = degrees Celsius). I put a lot of effort into making sure that my entire setup stayed cool and it seems to be doing that nicely. So I think I can rule out overheating as the problem.
>  
> 
>     Are you using the proprietary nvidia driver? Or nouveau or nv? The
>     best is if you can try the latest development version of your
>     distribution and file a bug there if you can reproduce it.
> 
> 
> I am currently running the latest version of the nvidia drivers that I downloaded from Nvidias own website. (Before that I tried the latest Nvidia drivers that were packaged with Ubuntu and I moved away from them because the problem persisted). I just checked if there are any more recent drivers that I could be using and there are not: I am using the latest Nvidia drivers.
>  
> 
>     Try also running without xmonad (not that I really suspect xmonad is
>     at fault). At the gdm login screen you can choose a "failsafe
>     terminal" as session, which will give you an xterm without any window
>     manager. Alternatively you can switch to a virtual console, stop X and
>     gdm by running "sudo stop gdm" and then start a bare xterm session by
>     running "xinit" - as long as you have not created a .xinitrc to start
>     other stuff of course.
> 
> 
> Well I ran a failsafe X session and the problem did not appear after an hour or two of use, but that does not really mean anything because sometimes it does not happen for hours; I still do not know how force the problem to happen (I do not know how to reproduce it) just that it happens in normal operation. I will try this again soon.
>  
> 
>     You said the problem appears after some time. Does a restart of the
>     xserver fix it temporarily again or do you need to reboot?
> 
> 
> A restart of the xserver seems to fix the problem without the need for a hard reboot. When I encountered the problem again just minutes ago (after about six hours of waiting) I shutdown gdm with sudo stop gdm and then ran xinit it all came back up without any problems and without X using up alot of my CPU. I do not know what that means but it does answer your question. So yes, rebooting the machine works but restarting the xserver also works too.
> 
> Thanks and I hope this begins to lead us in the right direction,
> Robert
>  
> 
> 
> 
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If you are running the proprietary nvidia driver, no one here is going to be able to help you in an official capacity.  That driver is not open source and support for that driver comes from nvidia.

There is an open source driver named nouveau that you might wish to experiment with.