[Nouveau] [Bug 30375] (NV34) X server using 100% cpu with latest nouveau.git and xf86-video-nouveau.git

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30375

--- Comment #3 from walt <w41ter at gmail.com> 2010-09-30 15:40:27 PDT ---
Oh dear, I spoke much too soon.  I just discovered that the bug disappeared
only because I forgot to change xorg.conf from nv back to nouveau :-(

Now that I really *am* using nouveau, the CPU is still pegged at 99% by Xorg
when viewing the npr.org website with the latest nightly build of firefox.

One new observation that I didn't notice earlier is that minimizing the firefox
window completely eliminates the cpu overload.

When I restore the firefox window, the cpu overload resumes exactly as before.
I hope this may give you some clue about the cause of the problem.

Again, I've looked closely at my amd64 builds of firefox and nouveau-related
packages and there is no sign of this cpu overload problem.  Just on i686.

I'd be more than happy to build profiling versions of X/nouveau if such
versions exist, but I'll need some hints to get started.

Many thanks.

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