[Mageia-dev] Problems with suspend using 3.5.x kernels

[Scott Chevalley]

I'm running the latest cauldron on a Dell XPS 15 laptop using the Nouveau driver
and have noticed that it will not wake properly from suspend when using any of
the 3.5.x desktop or tmb-desktop kernels.  I get a pretty almost paisley pattern
on the screen.

The system is responsive to ssh, but there is no way to recover the screen short
of rebooting.

If I switch to a tty and run pm-suspend, then it will wake fine, but I have to
completely kill X and restart it before it is usable.

Looking in dmesg when it did it this morning I see this:

[drm] nouveau 0000:02:00.0: PFIFO - playlist update failed
[drm] nouveau 0000:02:00.0: 0x2634 != chid: 0x00100005
[drm] nouveau 0000:02:00.0: PFIFO: unknown status 0x00000100
[drm] nouveau 0000:02:00.0: PFIFO - playlist update failed
[drm] nouveau 0000:02:00.0: 0x2634 != chid: 0x00100004
[drm] nouveau 0000:02:00.0: PFIFO: unknown status 0x00000100
[drm] nouveau 0000:02:00.0: PFIFO - playlist update failed
[drm] nouveau 0000:02:00.0: 0x2634 != chid: 0x00100002
[drm] nouveau 0000:02:00.0: PFIFO: unknown status 0x00000100
[drm] nouveau 0000:02:00.0: PFIFO - playlist update failed
[drm] nouveau 0000:02:00.0: PFIFO: unknown status 0x00000100
[drm] nouveau 0000:02:00.0: 0x2634 != chid: 0x00100001
[drm] nouveau 0000:02:00.0: PFIFO: unknown status 0x00000100
[drm] nouveau 0000:02:00.0: PFIFO - playlist update failed
[drm] nouveau 0000:02:00.0: PFIFO: unhandled status 0x00000001
detected fb_set_par error, error code: -16

at the end.

Suspend and resume work fine on kernel 3.4.6.

Thanks!
Scott