On Fri, 2008-11-07 at 22:00 +0000, Steven J Newbury wrote: > On Fri, 2008-11-07 at 21:44 +0000, Steven J Newbury wrote: > > On Fri, 2008-11-07 at 20:45 +0000, Steven J Newbury wrote: > > > On Fri, 2008-11-07 at 11:11 -0800, Eric Anholt wrote: > > > > On Fri, 2008-11-07 at 14:01 +0000, Steven J Newbury wrote: > > > > > > > > > > This is possibly also related to the massive slowdown I get X uses > > > > > 20%+ > > > > > CPU constantly and continually probes DDC, when I switch to battery, > > > > > this I had expected to be fixed by the recent patch removing ACPI > > > > > event > > > > > handling, but strangely it still occurs. > > > > > > > > You're the only person I've heard of with this problem. You'll need to > > > > figure out what's causing it. We still handle ACPI events, it was just > > > > an internal timer potentially firing off DDC that was removed. > > > > > > > I wonder if it's the VBIOS triggering continuous events? It may have > > > started happening when I updated to revision A13 (the latest) of the > > > Dell D830 BIOS. Perhaps I'm the only tester with a D830? > > > > > > Any idea how I could track this down? > > > > > I've discovered this behaviour only occurs when gnome-power-manager and/or gnome-settings-daemon are running. I'm guessing this started after the work to stop the flicker people were experiencing when starting GTK apps, although I never suffered previously from that bug myself. So this could be a GTK bug? I'm using gtk+-2.14.4.
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