Hi, > You can disable most of that code by loading i915 with 'powersave=0'. > If that patch really is at fault the powersave=0 should work around the > issue as well. > > It's been implicated in another issue (some display flicker and > underruns) so I'm pretty sure there's something wrong with it in some > configurations at least... > Could it be also that the powersave feature produces gpu hangs when xserver is run the first time (after a cold boot). I have serious issues the intel drm starting at v2.6.32-rc2 (I can not use the v2.6.32 series on my laptop) while the same xorg stack works well with the v2.6.31 series. I try to bisect this problem and obtained this (sorry it is a bit long):
git bisect start 'drivers/gpu' 'arch/x86_64/' # bad: [053fe57ac249a9531c396175778160d9e9509399] Merge git://git.kernel.org/pub /scm/linux/kernel/git/davem/net-2.6 git bisect bad 053fe57ac249a9531c396175778160d9e9509399 # good: [74fca6a42863ffacaf7ba6f1936a9f228950f657] Linux 2.6.31 git bisect good 74fca6a42863ffacaf7ba6f1936a9f228950f657 # bad: [d8a2d0e00c0d5a0d55e14b884bff034205015e51] drm/i915: HDMI hardware workar ound for Ironlake git bisect bad d8a2d0e00c0d5a0d55e14b884bff034205015e51 # bad: [d50ba256b5f1478e15accfcfda9b72fd7a661364] drm/kms: start adding command line interface using fb. git bisect bad d50ba256b5f1478e15accfcfda9b72fd7a661364 # good: [551ebd837c75fc75df81811a18b7136c39cab487] drm/radeon/kms: add rn50/r100 /r200 CS tracker. git bisect good 551ebd837c75fc75df81811a18b7136c39cab487 # good: [fdd5cace733370ab7a518a98ef084e02aa76fdea] drm/radeon/kms: Don't kzalloc memory which is immediately overwritten. git bisect good fdd5cace733370ab7a518a98ef084e02aa76fdea # good: [698443d9ec1a33eff65b27b9514e06998bf57eb3] drm/radeon/kms: disable VGA r endering engine before taking over VRAM git bisect good 698443d9ec1a33eff65b27b9514e06998bf57eb3 # good: [c214271563c00f2721c5111e27b53bf06dabc6e4] drm/radeon: consolidate famil y flags used in pciids. git bisect good c214271563c00f2721c5111e27b53bf06dabc6e4 # good: [93dc6c2b0d97a55508144073838e041140b206cd] drm/edid: Detailed standard t iming blocks have six timings, not five. git bisect good 93dc6c2b0d97a55508144073838e041140b206cd # good: [4bbd4973703bf8a5f00f05eff30a99cd9814f37f] drm/radeon/kms: enable r600 t v outputs. git bisect good 4bbd4973703bf8a5f00f05eff30a99cd9814f37f # good: [513bcb4655e68706594e45dfa1d4b181500110ba] drm/radeon/kms: don't require up to 64k allocations. (v2) git bisect good 513bcb4655e68706594e45dfa1d4b181500110ba Regards Mathieu ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev -- _______________________________________________ Dri-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dri-devel
