[Bug 101865] [HSW/IVB] Blank screen after resume with HSW

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101865

--- Comment #10 from nutrinfnon at gmx.com ---
Created attachment 133644
  --> https://bugs.freedesktop.org/attachment.cgi?id=133644&action=edit
dmesg output

For me, I isolated the cause of the problem:

Hibernation and following resuming fails when XOrg is in "dpms off".
At console or XOrg without "xscreensaver Power Management" active, resume works
fine.

I tested 4.13.0-rc6:
 I executed "xset dpms force off";
 then I executed "systemctl hibernate" from network.

at resuming, the screen remains off, view dmseg output in attach.

xrandr does not solve the situation:

xrandr --output VGA-1 --off 
xrandr: Configure crtc 0 failed

xrandr --output VGA-1 --mode 1024x768 
xrandr: Configure crtc 0 failed

Thanks

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