I have a GeForce 750 Ti card and I'm having issues with stability and
features with the nouveau driver on Fedora 23. Per lspci, I have
NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2)
and kernel 4.6.4-201.fc23.x86_64. It appears that I'm running into the same
(or a similar) issue as here:
https://bugs.freedesktop.org/show_bug.cgi?id=95251
I can get it to work on each output port (DisplayPort, HDMI, and DVI) and
I'm driving all three monitors simultaneously. However vdpauinfo shows that
none of the hardware acceleration is working:
Decoder capabilities:
name level macbs width height
----------------------------------------------------
MPEG1 --- not supported ---
MPEG2_SIMPLE --- not supported ---
MPEG2_MAIN --- not supported ---
[ etc etc ]
When I start X I do see this message:
[ 26.829] (II) modeset(0): [DRI2] VDPAU driver: nouveau
but I also see this repeated a few times:
[ 26.355] (EE) Unknown chipset: NV117
I'm getting conflicting messages from
Freedesktop.org about whether this
should work at all, so I can't tell if this is an upstream issue or a
Fedora issue. I have a 750 Ti, which per
https://nouveau.freedesktop.org/wiki/CodeNames/#NV110
is the Maxwell chipset NV117 with the GM107 chipset.
The video acceleration matrix
https://nouveau.freedesktop.org/wiki/VideoAcceleration/
seems to indicate that this is VP6, and everything is TODO. However the
main Nouveau wiki page at
https://nouveau.freedesktop.org/wiki/ has this
entry:
* Apr, 2015: GM107 acceleration support merged into 4.1
and
https://www.phoronix.com/scan.php?page=news_item&px=GTX-750-Nouveau-L...
indicates that as of 4.1 acceleration should start to work. I'm on kernel
4.6.4.
Can anyone help me understand whether VDPAU is even supported on my
hardware/kernel/driver combination, and if so, what I need to do to get it
to work?
Thanks,
-jdm