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Date: Sat, 21 Jan 2012 18:51:57 +0000 (UTC) From: Lubos Kolouch <lubos.kolouch@...il.com> To: linux-kernel@...r.kernel.org Subject: Re: i915 wakes from suspend to RAM with blank screen after commit cd9dde44f47501394b9f0715b6a36a92aa74c0d0 Keith Packard, Sat, 21 Jan 2012 10:15:24 -0800: > On Sat, 21 Jan 2012 10:32:14 +0000 (UTC), Lubos Kolouch > <lubos.kolouch@...il.com> wrote: > >> I git bisected it to commit cd9dde44f47501394b9f0715b6a36a92aa74c0d0 is >> the first bad commit commit cd9dde44f47501394b9f0715b6a36a92aa74c0d0 >> Author: Adam Jackson <ajax@...hat.com> >> Date: Fri Oct 14 12:43:49 2011 -0400 > > Did you try reverting this single commit on top of 3.3-rc1? > > And, can you collect the dmesg output with the kernel parameter > drm.debug=0xe added to the boot line, both messages at boot time *and* > messages during resume would be needed. If it works at boot time, I'm > quite surprised it somehow doesn't work at resume... I tried now and when I revert this line : - return (pixel_clock * bpp + 7) / 8; + return (pixel_clock * bpp + 9) / 10; resume works OK for me with 3.3-rc1. Before change (failed) ---------------------- dmesg after boot - http://paste.pocoo.org/show/538343/ dmesg after failed resume - http://paste.pocoo.org/show/538344/ After change (OK) ----------------- dmesg after boot - http://paste.pocoo.org/show/538345/ dmesg after OK resume - http://paste.pocoo.org/show/538346/ Luboš Kolouch -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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