Ubuntu
linux package

  1. Bug #583760
  2. Comment #11

Comment 11 for bug 583760

Revision history for this message
In , Delan Azabani (azabani) wrote :

Although the keyboard is fully non-operational (no VTs!) and the mouse cursor only moves but doesn't work once the hang occurs, SSH and network still work, and I received these four lines on /var/log/messages the moment nouveau hung:

Feb 12 11:51:03 delan2 kernel: [drm] nouveau 0000:01:00.0: PGRAPH - TRAP_CCACHE FAULT
Feb 12 11:51:03 delan2 kernel: [drm] nouveau 0000:01:00.0: PGRAPH - TRAP_CCACHE 00000000 00000000 00000000 00000000 00000000 00000000 00000000
Feb 12 11:51:03 delan2 kernel: [drm] nouveau 0000:01:00.0: PGRAPH - TRAP
Feb 12 11:51:03 delan2 kernel: [drm] nouveau 0000:01:00.0: PGRAPH - ch 2 (0x0000b00000) subc 5 class 0x8397 mthd 0x0f04 data 0x00000000

I have also seen it vary slightly on the mthd (which has been 0x1414) and the data (which has been 0x00000100). Having searched this error and found basically nothing, this may be important in determining the problem that causes nouveau to hang.