[Bug 97037] New: Parts of GUI blinking with fullscreen video playback on 2nd screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97037

            Bug ID: 97037
           Summary: Parts of GUI blinking with fullscreen video playback
                    on 2nd screen
           Product: xorg
           Version: git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: fry.kun at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

kernel: 4.6.4-201.fc23.x86_64
git commit: 4eaab17aec8ea66428087065901324f56df9020e

I'm seeing parts of the GUI blink between updated buffer and some
semi-corrupted earlier buffer at times. This usually happens on youtube
fullscreen video playback (flash/html5? in Firefox), but sometimes seen without
fullscreen video (just now happened in Xfce terminal on "git log" command --
was flipping between mostly-blank and screenfull of log for a few seconds).


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

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]
        Expansion ROM at <unassigned> [disabled]
        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


01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK104M [GeForce
GTX 870M] [10de:1199] (rev ff) (prog-if ff)
        !!! Unknown header type 7f
        Kernel modules: nouveau, nvidia



Another bug related to fullscreen video (no idea if related/same): at one
bootup, horizontal lines showed up as noise at some [random?] locations in
video clip during playback. At another bootup, no problem..


Updating to today's commit, might make a difference..

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