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image become black when swaping on another screen


Description Morel 2011-09-18 22:45:08 CEST
My computer is an eeePC.
When I use the key to change the output screen, the screen become black, and I have to go on a tty and return on the xorg session to have it showing something.

Also, tty stay on the computer's screen, without going on the external.

PS: I'm not sure at all that I have selected the good part, I apologize
PPS: I'm not it is not a xorg problem
Comment 1 Nick Schermer editbugs 2011-09-19 07:57:51 CEST
With the PPS you mean you are sure it is not an xorg problem? Because it looks like an issue with you video driver.
Comment 2 Olivier Fourdan editbugs 2011-09-19 09:12:21 CEST
what does "xrandr -q" report? 

Does the same happen with other desktop (or even a bare session)? Is the backlight of the display on or is the display all black?

I agree with Nick that it looks like an Xorg issue.
Comment 3 Morel 2011-09-19 10:00:22 CEST
With the PPS I meant that I was not sure... It seem my thought was faster than my fingers, sorry for the typo.

I didn't try on another DE, I will when I'll go back at home and install one (this evening I think)

"xrandr -q" give me the following (without other screen connected, so I guess it is useless):

Screen 0: minimum 320x200, current 1024 x 600, maximum 4096 x 4096
LVDS1 connected 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)

I will restart the command at home, with the screen that give me the problem.
I will try at lunch time to have result with another, too, if it can help.
Comment 4 Morel 2011-09-19 21:00:22 CEST
I'm back.
So, results with my 2 screens: 
Screen 0: minimum 320 x 200, current 1440 x 900, maximum 4096 x 4096
LVDS1 connected (normal left inverted right x axis y axis)
   1024x600       60.0 +   65.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 connected 1440x900+0+0 (normal left inverted right x axis y axis) 408mm x 255mm
   1440x900       59.9*+   75.0  
   1280x1024      75.0     60.0  
   1152x864       75.0  
   1024x768       75.1     70.1     66.0     60.0  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        72.8     75.0     66.7     66.0     60.0  
   720x400        70.1  

I will now download an other DE (kde, because it's easier to know which packages I will need to remove :P ) and I'll give you results of the change.
But it is not probable that I can try today, my connection is slow. (aptitude say 1H to download)
Comment 5 Nick Schermer editbugs 2014-12-03 09:19:19 CET
Close bug reports of archived products.

Bug #7981

Reported by:
Reported on: 2011-09-18
Last modified on: 2014-12-03


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