VGA resume & thaw (wake up from S3 & S4) broken - kernel exclusively

[poma]

On 13.09.2014 06:57, poma wrote:
> 
> Actually I have nothing to show cause logs are all OK.
> Haha, it seems to me that the bugs become intelligent.
> 
> 3.15.10-201.fc20.x86_64
> 3.16.2-200.fc20.x86_64
> 3.17.0-0.rc4.git3.2.fc22.1.x86_64
>  nouveau  [     DRM] suspending display...
>  nouveau  [     DRM] unpinning framebuffer(s)...
>  nouveau  [     DRM] evicting buffers...
>  nouveau  [     DRM] waiting for kernel channels to go idle...
>  nouveau  [     DRM] suspending client object trees...
>  nouveau  [     DRM] suspending kernel object tree...
> ...
>  nouveau  [     DRM] re-enabling device...
>  nouveau  [     DRM] resuming kernel object tree...
>  nouveau  [   VBIOS][0000:02:00.0] running init tables
>  nouveau  [  PTHERM][0000:02:00.0] fan management: automatic
>  nouveau  [     CLK][0000:02:00.0] --: core 566 MHz shader 1400 MHz memory 399 MHz
>  nouveau  [     DRM] resuming client object trees...
>  nouveau  [     DRM] resuming display...
>  nouveau 0000:02:00.0: no hotplug settings from platform
>  nouveau 0000:02:00.0: no hotplug settings from platform
> 
> Logs(dmesg) are literally identical.
> 
> 3.15.10-201.fc20.x86_64 - nouveau(fb) resume & thaw PASSED, and that's all what works.
>         Kernels >= 3.16 - nouveau(fb) resume & thaw BROKEN
>             ALL Kernels - vesa(fb)    resume & thaw BROKEN.
> 
> 

Excusez-moi, 
BROKEN == The display remains OFF.


poma