Comment 20 for bug 223238

On Mon, Jul 07, 2008 at 06:22:59AM -0000, Rob Lanphier wrote:
> I spent the better part of an afternoon fighting this problem (or one
> much like it) on my laptop. Free nv driver works, but the restricted
> driver causes really obnoxious stalls, to the point where the app dims
> out multiple times for several seconds on some pages.
>
> Page which demonstrates the behavior most severely (ironically):
> http://mozillalinks.org/wp/2008/02/firefox-3-ultimate-feature-performance/
>
> I saved a local copy of the CSS, and did a binary search to find the offending CSS. Here it is:
> #page {
> background: url(images/structure/backgroundColumns.png) repeat-y;
> background-position: 3px;
> margin-top: 50px;
> width: 970px;
> margin-left: auto;
> margin-right: auto;
> border: 1px solid #D9D9D9;
> z-index: 10;
> }
>
> Readding pretty much anything on the #page entity causes rendering
> stalls. I started readding individual lines from this chunk, but there
> didn't seem to be one particular culprit. It seems that most/all of
> these lines contribute to the sluggishness somehow, to varying degrees.
>

This is a background repeat issue (again) ... appears that nvidia xaa
implementation has its own share of issues with that.

Please attach your xorg.conf and your Xorg.0.log taken after
reproducing.

 - Alexander