Hi Martin, Please open a bug report at http://bugs.freedesktop.org/ intel problems are tracked there. Besides your problem report below, please add Xorg.log from a working setup (user-mode-setting) and the dmesg with full debugging (add "drm.debug=15" to your kernel commandline).
See http://intellinuxgraphics.org/how_to_report_bug.html for the details of what else is needed. Yours, Daniel On Sun, Mar 14, 2010 at 01:19:10AM +0100, Martin Fahr wrote: > Hi, > > Linux v2.6.32-rc1 introduced a bug for me, which gives me a black screen > on my laptop when booting with KMS switched on. Starting X does not > change that, i.e. I don't get any graphics to see. Except for this, the > system runs fine, and the backlight of the LCD display is on. If I > switch KMS off, the system runs perfectly. > > I reported this problem before, but did not get any response. In the > meantime, I used git-bisect to find the responsible commit: > commit e70236a8d3d0a4c100a0b9f7d394d9bda9c56aca > Author: Jesse Barnes <jbar...@virtuousgeek.org> > Date: Mon Sep 21 10:42:27 2009 -0700 > > drm/i915: split display functions by chip type > > This patch splits out several of the display functions into a separate > display function table to avoid tons of chipset specific if..else > if..else if blocks all over. There are more opportunities for this > (some noted in the structure defintition); so more cleanup patches will > follow. > > Signed-off-by: Jesse Barnes <jbar...@virtuousgeek.org> > Signed-off-by: Eric Anholt <e...@anholt.net> > > Double-checked that by unapplying the commit (KMS works), and reapplying > it (KMS does not work). > > Kernels up to 2.6.34-rc1 do not solve the problem for me, and > unfortunately, unapplying the patch to v2.6.32 or 2.6.33 results in > conflicts. Framebuffer console and KMS on 2.6.31 worked fine, only X did > not cooperate with that. > > Any help appreciated, and I will do my best to answer any questions. > > Running on Debian testing. > > lspci -v: > 00:02.0 VGA compatible controller: Intel Corporation 82830 CGC [Chipset > Graphics Controller] (rev 04) (prog-if 00 [VGA controller]) > Subsystem: Samsung Electronics Co Ltd Device c002 > Flags: bus master, fast devsel, latency 0, IRQ 10 > Memory at e8000000 (32-bit, prefetchable) [size=128M] > Memory at e0000000 (32-bit, non-prefetchable) [size=512K] > Expansion ROM at <unassigned> [disabled] > Capabilities: [d0] Power Management version 1 > > 00:02.1 Display controller: Intel Corporation 82830 CGC [Chipset > Graphics Controller] > Subsystem: Samsung Electronics Co Ltd Device c002 > Flags: bus master, fast devsel, latency 0 > Memory at f0000000 (32-bit, prefetchable) [size=128M] > Memory at e0080000 (32-bit, non-prefetchable) [size=512K] > Capabilities: [d0] Power Management version 1 > > Thanks, > > Martin > > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > -- > _______________________________________________ > Dri-devel mailing list > Dri-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/dri-devel -- Daniel Vetter Mail: dan...@ffwll.ch Mobile: +41 (0)79 365 57 48 ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev -- _______________________________________________ Dri-devel mailing list Dri-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dri-devel
