ubuntu-x-swat team mailing list archive

[Mateo Matachana <660405@xxxxxxxxxxxxxxxxxx>]

I have the same problem on a Toshiba Satellite U400 with an Intel
chipset. After suspending, the systems looks like freezed.

It isn't freezed. The system is perfectly working and you can type your
password and your session will be resumed as usual (but anything will be
shown). The network is up and working and you have full SSH access. I
could log in in my system through SSH in one of those freezes and I saw
the problem is the resolution of the screen: too low.

xrandr -display :0 returns on my laptop

Screen 0: minimum 320 x 200, current 320 x 200, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 286mm x 179mm
   1280x800       59.9*+
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
HDMI1 connected 1920x1080+1280+0 (normal left inverted right x axis y axis) 510mm x 290mm
   1920x1080      59.9*+   60.0     60.0  
   1680x1050      60.0  
   1280x1024      75.0     60.0  
   1152x864       75.0  
   1280x720       60.0  
   1024x768       75.1     60.0  
   832x624        74.6  
   800x600        75.0     60.3     56.2  
   720x480        59.9  
   640x480        75.0     60.0  
   720x400        70.1  
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
TV1 disconnected (normal left inverted right x axis y axis)

The wake-up resolution (320x200) isn't supported by any of my screens
and because of that the image isn't shown. Executing

xrandr -display :0 --output HDMI1 --off
xrandr -display :0 --screen 0 --size 640x480

allows me to set a proper screen resolution and continue working with
the session as if anything would happened.

-- 
computer freezes on suspend/hibernate
https://bugs.launchpad.net/bugs/660405
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