[NV46] No display after suspend to RAM

Submitted by Neven Sajko

Assigned to Nouveau Project

Link to original bug (#83168)

Description

Created attachment 105362
the kernel log

When Linux resumes after suspension to RAM, I get no display until next
boot, but the backlight is on. I think this was true since I started
using this distro, but I rarely tried to use suspend.
This happens invariantly to Xorg.
Although my hardware is 64-bit, I use a 32-bit Linux.

Software versions:

• Linux 3.16.1
  
  
• libdrm 2.4.56
  
  
• mesa 10.2.6
  
  
• xf86-video-nouveau 1.0.10
  
  nouveau reports errors like these to kernel log when the display should
  turn back on:
  
  [ 153.783362] nouveau E[ PBUS][0000:01:00.0] MMIO write of 0x00001e00 FAULT at 0x6813c8
  [ 153.788735] nouveau E[ PBUS][0000:01:00.0] MMIO write of 0x00002e00 FAULT at 0x6813c8
  [ 153.791840] nouveau E[ PBUS][0000:01:00.0] MMIO write of 0xf5153d80 FAULT at 0x6813c8
  
  Attachment 105362, "the kernel log":
  kernel_log.txt