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[Bug 313220] Re: xrandr reports display as 'disconnected' when EDID data not captured successfully, even if display in question is active and in use

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Mike Mestnik <313220@xxxxxxxxxxxxxxxxxx>
Date: Tue, 15 Mar 2011 23:30:36 -0000
Reply-to: Bug 313220 <313220@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Hello,
  This bug effects displays that are not monitors, in my case an RGB component connector on a projector TV, where EDID is impossible.

I would be open to cloning this bug.  I would be open to other solutions
as currently my setup is partly unusable if not broken beyond being
usable.

I'll attach some configs and logs.  What I'd like is to switch on/off
output to the projector TV for watching videos.


cheako@arcadia:~$ xrandr 
Screen 0: minimum 320 x 200, current 1600 x 1200, maximum 8192 x 8192
DVI-0 connected 1600x1200+0+0 (normal left inverted right x axis y axis) 390mm x 290mm
   1600x1200      85.0*+   75.0  
   1920x1440      60.0  
   1856x1392      60.0  
   1792x1344      75.0  
   1280x1024      85.0     75.0  
   1152x864       75.0  
   1024x768       85.0     75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        72.8     75.0     66.7     60.0  
   720x400        87.8     70.1  
DIN disconnected (normal left inverted right x axis y axis)
DVI-1 disconnected (normal left inverted right x axis y axis)
cheako@arcadia:~$ xrandr --output DVI-0 --off --output DVI-1 --auto; sleep 3; xrandr; sleep 3; xrandr --output DVI-1 --off --output DVI-0 --auto
Screen 0: minimum 320 x 200, current 320 x 200, maximum 8192 x 8192
DVI-0 connected (normal left inverted right x axis y axis)
   1600x1200      85.0 +   75.0  
   1920x1440      60.0  
   1856x1392      60.0  
   1792x1344      75.0  
   1280x1024      85.0     75.0  
   1152x864       75.0  
   1024x768       85.0     75.1     70.1     60.0     43.5  
   832x624        74.6  
   800x600        72.2     75.0     60.3     56.2  
   640x480        72.8     75.0     66.7     60.0  
   720x400        87.8     70.1  
DIN disconnected (normal left inverted right x axis y axis)
DVI-1 disconnected (normal left inverted right x axis y axis)

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https://bugs.launchpad.net/bugs/313220

Title:
  xrandr reports display as 'disconnected' when EDID data not captured
  successfully, even if display in question is active and in use