Created attachment 106483 [details] snapshot ==System Environment== -------------------------- Regression: Yes. Good commit on -next-queued: 91565c85b66db820f01894a971d39aaef60c4325 Bad commit on -next-queued: 17c58fe801f5588c5904cc2f15620f7f5a465b53 Non-working platforms: BDW ==kernel== -------------------------- origin/drm-intel-nightly:3e5e5913a80f593aa8f67784220eac2658034c6c(fails) drm-intel-nightly: 2014y-09m-17d-16h-09m-44s UTC integration manifest origin/drm-intel-next-queued:de6a03dbc12c72e8ddd936071936fe96633c9d05(works) drm/i915: Clarify mmio_flip_lock locking origin/drm-intel-fixes: d72985765e986f45a28f87d75f3f0ece489b04cc(fails) drm/i915: Add limited color range readout for HDMI/DP ports on g4x/vlv/chv ==Bug detailed description== ----------------------------- Snow shows while playing video with "mplayer -vo xv:adaptor=0 MPEG-2.mpeg". Please check snapshot on attachment for details. This bug only find on one BDW device. Hardware environment: root@x-bdw09:~# lspci -nnn 00:00.0 Host bridge [0600]: Intel Corporation Broadwell-U Host Bridge -OPI [8086:1604] (rev 09) 00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) 00:03.0 Audio device [0403]: Intel Corporation Broadwell-U Audio Controller [8086:160c] (rev 09) 00:14.0 USB controller [0c03]: Intel Corporation Wildcat Point-LP USB xHCI Controller [8086:9cb1] (rev 03) 00:16.0 Communication controller [0780]: Intel Corporation Wildcat Point-LP MEI Controller #1 [8086:9cba] (rev 03) 00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (3) I218-LM [8086:15a2] (rev 03) 00:1f.0 ISA bridge [0601]: Intel Corporation Wildcat Point-LP LPC Controller [8086:9cc3] (rev 03) 00:1f.2 SATA controller [0106]: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] [8086:9c83] (rev 03) 00:1f.3 SMBus [0c05]: Intel Corporation Wildcat Point-LP SMBus Controller [8086:9ca2] (rev 03) 00:1f.6 Signal processing controller [1180]: Intel Corporation Wildcat Point-LP Thermal Management Controller [8086:9ca4] (rev 03) ==Reproduce steps== ---------------------------- 1. xinit & 2. mplayer -vo xv:adaptor=0 MPEG-2.mpeg
Created attachment 106484 [details] dmesg
I think we wait for the bisect here unless somebody has an idea, but there seem to be quite a few bdw features in that range.
Misclick spam.
During bisect, for the same commit, The issue sometimes happend, sometimes not happend. I unable to bisect it.
(In reply to comment #4) > During bisect, for the same commit, The issue sometimes happend, sometimes > not happend. I unable to bisect it. how about: Good commit on -next-queued: 91565c85b66db820f01894a971d39aaef60c4325 Is it always pass?
The other question is do you have any other 00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) i.e. the bug may be peculiar to bdw-u
(In reply to comment #5) > (In reply to comment #4) > > During bisect, for the same commit, The issue sometimes happend, sometimes > > not happend. I unable to bisect it. > > how about: > Good commit on -next-queued: 91565c85b66db820f01894a971d39aaef60c4325 > Is it always pass? always pass
I find 2D driver maybe caused this issue. I will bisect it on sunday.
It is difficult to bisect. But anyway, this issue doesn't happen on latest Kernel and graphics driver. I think it is fixed, so close it.
The presumption would be that it was some of the w/a being applied to the context.
Closing verified+fixed.
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