Thanks Ulli. xrandr can really return the display to a functional state.
I have the problem on ASUS Eee PC 1000H.
In the problematic state xrandr shows no mode selected (I do not know what it
does mean):
$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 32767 x 32767
LVDS1 connected primary (normal left inverted right x axis y axis)
1024x600 60.0 + 65.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
After resolving of the problem (using xrandr --auto) shows a mode selected:
$ xrandr
Screen 0: minimum 320 x 200, current 1024 x 600, maximum 32767 x 32767
LVDS1 connected primary 1024x600+0+0 (normal left inverted right x axis y axis)
220mm x 129mm
1024x600 60.0*+ 65.0
800x600 60.3 56.2
640x480 59.9
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
In the problematic state the verbose output of xrandr differs also in the value
of CRTC:
CRTCs: 1
After resolving of the problem:
CRTC: 0
CRTCs: 0
-------------
It is possible to resolve the problematic state without preparation of any
scripts in advance:
a) After logging-in when the black screen is being shown:
1. press Ctrl+Alt+t to open a terminal
2. blindly type (+ enter at the end): xrandr --auto
b) After logging-in when the black screen is being shown:
1. press Ctrl+Alt+F1 to switch to the text console
2. login
3. run: chvt 7 ; DISPLAY=:0 xrandr --auto
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https://bugs.launchpad.net/bugs/1303736
Title:
[SRU] Black screen after wakeup from suspending by closing the laptop
lid
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