Bug 97089

Summary: Full screen video playback corruption
Product: xorg Reporter: Konstantin Svist <fry.kun>
Component: Driver/intelAssignee: Chris Wilson <chris>
Status: RESOLVED MOVED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium    
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:

Description Konstantin Svist 2016-07-26 18:27:58 UTC 
See example here: https://goo.gl/photos/WZWuue9838c9utqp6

This is only present in 1-monitor case; 2-monitor case causes bug 97037 instead

kernel: 4.6.4-301.fc24.x86_64


dual video hardware, bumblebee (usually keep nvidia card disabled)

# lspci -nnn -vvv -s00:02.0
00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
	Subsystem: CLEVO/KAPOK Computer Device [1558:5281]
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
	Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0
	Interrupt: pin A routed to IRQ 35
	Region 0: Memory at f7400000 (64-bit, non-prefetchable) [size=4M]
	Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M]
	Region 4: I/O ports at f000 [size=64]
	[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
	Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
		Address: fee00018  Data: 0000
	Capabilities: [d0] Power Management version 2
		Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [a4] PCI Advanced Features
		AFCap: TP+ FLR+
		AFCtrl: FLR-
		AFStatus: TP-
	Kernel driver in use: i915
	Kernel modules: i915
Comment 1 Matti Hämäläinen 2016-09-22 14:29:58 UTC 
This issue looks visually very similar to https://bugs.freedesktop.org/show_bug.cgi?id=95414 .. which in my case could be circumvented by disabling TearFree. Perhaps it is not the exact same issue, but might be worth trying to disable TearFree if you have it enabled?
Comment 2 Konstantin Svist 2016-09-22 23:09:35 UTC 
Yes, disabling TearFree seems to fix it for me, as well as avoiding OOM condition that also happens while playing fullscreen.
Will this be fixed in the near future?
Comment 3 Matti Hämäläinen 2016-10-06 09:44:15 UTC 
Alas, I am only a user, not developer, so I can't answer when or if it will be fixed. However, your report(s) do not include Xorg.log or other information about your setup so I can only guess that you are using DRI2. With DRI3 (+TearFree, if you wish) this issue does not present itself, but I should warn that DRI3 has/may have other problems.

Sorry for the late reply, I'm not subscribed to this bug #.
Comment 4 Chris Wilson 2016-11-07 20:46:30 UTC 
The visual glitches here are not originating from the ddx; the pattern here is consistent with GL rendering. Nevertheless, the same kernel fix is definitely required.
Comment 5 Martin Peres 2019-11-27 13:45:32 UTC 
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-intel/issues/123.

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