Bug#781337: xserver-xorg-video-nouveau: Screen Hangs Displaying Black and White Rectangles After Resuming from Suspend

[Sven Joachim <svenjoac@gmx.de>]

On 2015-03-27 19:17 +0100, Jean-Marc wrote:

> I get on a regular basis problems resuming from suspend.
> (sometimes very serious needing a hard reset).

That's a kernel problem.

> The problem is the following:
> Instead of resuming, the system partially hangs and the screen displays black and white rectangles.
>
> Switching to the console is not always possible.
>
> If I can switch to it, I get messages repetitively flooding it:
> kernel: [ 2723.298937] nouveau E[  PGRAPH][0000:02:00.0] PGRAPH_VSTATUS0: 0x00145b4d CCACHE
> kernel: [ 2723.298939] nouveau E[  PGRAPH][0000:02:00.0] PGRAPH_VSTATUS1: 0x0000002d
> kernel: [ 2723.298941] nouveau E[  PGRAPH][0000:02:00.0] PGRAPH_VSTATUS2: 0x0034db40 ENG2D ROP
> kernel: [ 2725.298350] nouveau E[  PGRAPH][0000:02:00.0] PGRAPH TLB flush idle timeout fail
> kernel: [ 2725.298355] nouveau E[  PGRAPH][0000:02:00.0] PGRAPH_STATUS  : 0x011fde03 BUSY DISPATCH VFETCH CCACHE_PREGEOM STRMOUT_VATTR_POSTGEOM VCLIP TRAST CLIPID ZCULL ENG2D RMASK TPC_RAST TPC_PROP ROP
>
> If I can switch to the console, I can blindly type some commands to reboot.
>
> It worked like this since I upgrade to 3.14 kernel I think.
>
> I also noticed other people suffer the same problem solved by upgrading to experimental kernel 3.19.

Well, have _you_ tried a 3.19 kernel yet?  If not, please do so.

> See https://bugs.freedesktop.org/show_bug.cgi?id=89186.

This is for G86, but you have a G84 card - similar but not the same.

Cheers,
       Sven