[Nouveau] NV86 (Quadro NVS 140M) errors in dmesg

[Jasper Bryant-Greene]

In case it's any use for debugging, I get these error messages in dmesg
on my NV86 (Quadro NVS 140M) card:

[   21.729435] [drm] Initialized drm 1.1.0 20060810
[   21.749414] nouveau 0000:01:00.0: power state changed by ACPI to D0
[   21.749425] nouveau 0000:01:00.0: PCI INT A -> GSI 16 (level, low) ->
IRQ 16
[   21.749432] nouveau 0000:01:00.0: setting latency timer to 64
[   21.749528] [drm] Detected an NV50 generation card (0x086900a2)
[   21.749530] [drm] Initialized nouveau 0.0.11
drm-2.3.0-1351-g4585787bd1a1d782b on minor 0
[   22.586502] [drm:nouveau_graph_trapped_channel] *ERROR* AIII,
invalid/inactive channel id 128
[   22.586509] [drm] PGRAPH_ERROR - nSource: PROTECTION_ERROR, nStatus:
[   22.586513] [drm] PGRAPH_ERROR - Ch -1/0 Class 0x0000 Mthd 0x0000
Data 0x00000000:0x00000000
[   22.586521] [drm] Allocating FIFO number 1
[   22.593281] [drm] nouveau_fifo_alloc: initialised FIFO 1
[   22.593918] [drm] Allocating FIFO number 2
[   22.600736] [drm] nouveau_fifo_alloc: initialised FIFO 2

I'm happy to do any further debugging if the above are real errors.

Also, Xvideo does not work properly, with mplayer printing a large
number of these:

X11 error: BadMatch (invalid parameter attributes)

... and the screen remaining at a corrupted view of the desktop while
audio plays.

Otherwise, 2D performance is great. Haven't attempted any 3D as I don't
really have any use for 3D rendering.

-jasper