[Nouveau] [Bug 103764] 3D renering results in a distorted frame.

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=103764

--- Comment #7 from Ilya <dikiy_evrej at web.de> ---
(In reply to Ilia Mirkin from comment #6)
> Can you check if MSI is enabled (lspci -nn -vv -d 10de: )? Also see if
> interrupts are being properly delivered (cat /proc/interrupts)
> 
> NV46 had some issues with that, although they should have been fixed in 4.4,
> which you're running...

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G72M [Quadro NVS
110M/GeForce Go 7300] [10de:01d7] (rev a1) (prog-if 00 [VGA controller])
        Subsystem: Lenovo G72M [Quadro NVS 110M/GeForce Go 7300] [17aa:3839]
        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, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 30
        Region 0: Memory at c9000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Region 3: Memory at ca000000 (64-bit, non-prefetchable) [size=16M]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: nouveau
        Kernel modules: nvidiafb, nouveau

The PCI-MSI counter (relative nvkm) is rapidly increasing, if glxgears are
running. I tried to count, its about 120 interrupts per second, which seems to
be ok, till vsync on 60Hz is enabled.

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