[Bug 92327] New: Tearing and drm_wait_vblank kernel log spam with reverse PRIME (intel+nouveau)

* [Bug 92327] New: Tearing and drm_wait_vblank kernel log spam with reverse PRIME (intel+nouveau)
@ 2015-10-07  7:22 bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ
       [not found] ` <bug-92327-8800-V0hAGp6uBxMKqLRl/0Ahz6D7qz1kEfGD2LY78lusg7I@public.gmane.org/>
  0 siblings, 1 reply; 3+ messages in thread
From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ @ 2015-10-07  7:22 UTC (permalink / raw)
  To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW

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https://bugs.freedesktop.org/show_bug.cgi?id=92327

            Bug ID: 92327
           Summary: Tearing and drm_wait_vblank kernel log spam with
                    reverse PRIME (intel+nouveau)
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: mschiffer+misc-Nyw9WiXk/RKXhJHkyCwd5uTW4wlIGRCZ@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Setup: I use reverse PRIME with a primary intel and a secondary nouveau card. I
have enabled one output on each of the cards. The reverse PRIME (nouveau)
output is set as primary output via xrandr.

Whenever there's a DRI user on the reverse PRIME screen, the following message
gets written to my kernel log once for each buffer swap:

[drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x7d, supported mask
0x7400003f

Both DRI2 and DRI3 cause this behaviour. I also see tearing on the nouveau
output.

Depending on the exact setup (DRI2/DRI3, different DRI users), I also get
slightly different messages:

[drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x15d, supported
mask 0x7400003f
[drm:drm_wait_vblank [drm]] *ERROR* Unsupported type value 0x400015d, supported
mask 0x7400003f

Hardware:

00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF119M [Quadro NVS 4200M]
(rev a1)

Software:

* xserver 1.17.2
* xf86-video-intel 2.99.917-476-g4e668dd
* xf86-video-nouveau 1.0.11-31-g1ff13a9

I opened a bug report for the kernel first (see
https://bugzilla.kernel.org/show_bug.cgi?id=105601 ), but was told that this is
a userspace bug.

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