Hello, Didn't know git bisect yet - awesome command. I did basically a binary search manually but grouped some commits logically together. Well this the result with git bisect: 323a1cc8f7d3c40a8e77751d62545de43fa52653 is the first bad commit commit 323a1cc8f7d3c40a8e77751d62545de43fa52653 Author: Christian König <christian.koenig at amd.com> Date:   Fri Jun 30 12:19:42 2017 +0200     drm/amdgpu: stop mapping BOs to GTT         No need to map BOs to GTT on eviction and intermediate transfers any more.         Signed-off-by: Christian König <christian.koenig at amd.com>     Reviewed-by: Alex Deucher <alexander.deucher at amd.com> :040000 040000 962cffe27f66877559c78b69ba7f0e2d503e12d4 cd0a1c7e073dbbcc6497d4e6a76ba41ad248ea30 M drivers git bisect log git bisect start # bad: [f44148a55c29decda4ce3156426008282feb846e] drm/amdgpu: Try evicting from CPU visible to invisible VRAM first git bisect bad f44148a55c29decda4ce3156426008282feb846e # good: [66e26593fbe5523965ccb547fb18c50b7becf91e] drm/amd/powerplay: fix bug fail to remove sysfs when rmmod amdgpu. git bisect good 66e26593fbe5523965ccb547fb18c50b7becf91e # bad: [dde557132beb2cfb9e98046936cb3565b21d6f9c] drm/amdgpu: remove maximum BO size limitation v2 git bisect bad dde557132beb2cfb9e98046936cb3565b21d6f9c # good: [69112fb54676b519aedb3f15069ac0273fc051b4] drm/amd/powerplay: move VI common AVFS code to smu7_smumgr.c git bisect good 69112fb54676b519aedb3f15069ac0273fc051b4 # good: [d36719c5ea181601f47e2d056a444d025a5247c6] drm/amdgpu/gmc9: get vram width from atom for Raven git bisect good d36719c5ea181601f47e2d056a444d025a5247c6 # good: [3af79f94b85557d26d53909ed85526ec980ffd7f] drm/amdgpu: add amdgpu_gart_map function v2 git bisect good 3af79f94b85557d26d53909ed85526ec980ffd7f # bad: [323a1cc8f7d3c40a8e77751d62545de43fa52653] drm/amdgpu: stop mapping BOs to GTT git bisect bad 323a1cc8f7d3c40a8e77751d62545de43fa52653 # good: [19993e3a86268a30c8b1c31c4518fc403431efe2] drm/amdgpu: use the GTT windows for BO moves v2 git bisect good 19993e3a86268a30c8b1c31c4518fc403431efe2 # first bad commit: [323a1cc8f7d3c40a8e77751d62545de43fa52653] drm/amdgpu: stop mapping BOs to GTT Many regards, Martin Babutzka Am Montag, den 24.07.2017, 18:12 +0000 schrieb Deucher, Alexander: > > -----Original Message----- > > From: amd-gfx [mailto:amd-gfx-bounces at lists.freedesktop.org] On > > Behalf > > Of Martin Babutzka > > Sent: Monday, July 24, 2017 1:06 PM > > To: amd-gfx at lists.freedesktop.org > > Subject: Regression: Black screen after resume from powersave > > > > Hello, > > > > I tracked down another regression affecting my PC with R9 380 GPU, > > running the amd-staging-4.11 kernel on Xubuntu 17.04: > > > > After resume from powersave, display freezes when the powersave is > > triggered from the lightdm locked screen or stays completely black > > if > > the powersave was triggered from a logged in user. > > > > The regression occurs the first time when I build the kernel > > including > > commit 323a1cc8f7d3c40a8e77751d62545de43fa52653. Here is the result > > from the testing series: > > 8. Step - crashes > > bfd40a54f781899ee5b9ddffc459a6eafe2bba86 > > 11. Step - crashes > > dde557132beb2cfb9e98046936cb3565b21d6f9c > > 12. Step - crashes > > 323a1cc8f7d3c40a8e77751d62545de43fa52653 > > 10. Step - works > > 19993e3a86268a30c8b1c31c4518fc403431efe2 > > 3af79f94b85557d26d53909ed85526ec980ffd7f > > b81aface585aab7262a830aa2f93ff53d4baf3c0 > > 9. Step - works > > 8d1610a0f3b99e3f950064dc4c476000d3b6ba02 > > d36719c5ea181601f47e2d056a444d025a5247c6 > > 2247dfee70a96025ba389f363b9088e2d377c7cc > > 239e79555c7e490823582b9a66390e76ebabb9ab > > > > Maybe this is also linked to: > > "iMac 10,1 with Ubuntu 16.04: black screen after suspend (Florian > > Echtler)" > > Not related.  That patch is for a different driver (radeon) and > different hardware (r7xx). > > > > > If you fix this successfully I would be very glad if you push the > > commit to amd-staging-4.11 again. > > Can you do a proper git bisect? > > Alex > > > > > Many regards, > > Martin Babutzka > > _______________________________________________ > > amd-gfx mailing list > > amd-gfx at lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
