On Monday 07 July 2008, Pavel Machek wrote: > Hi! > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10919 > > > Subject : [regression] display dimming is slow and laggy - Acer > > > Travelmate 661lci Submitter : Maximilian Engelhardt > > > <maxi@xxxxxxxxxxxxx> > > > Date : 2008-06-14 22:31 (23 days old) > > > References : http://marc.info/?l=linux-kernel&m=121348428828320&w=4 > > > > I wonder if this one could be related. The 'nr_zones' overwriting bug > > would result in kswapd not reclaiming any memory asynchronously, so the > > kernel would basically be constantly under a low-memory situation, and > > processes would be forced to do synchronous reclaim. > > > > That, in turn, could easily explain laggy operation, especially if it is > > something bigger that needs to allocate new memory (not that I know if X > > dimming needs to, but I could imagine that it does some double buffering > > or whatever). > > Hmm, but that would mean whole system is slow, right? > > I'd bet this is ACPI EC problem... I didn't notice anything that my system is slow. Also I think this patch got included in 2.6.26-rc9 but I still have this problem with it. Maxi
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