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

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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.


Have a nice weekend folks.


poma

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