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It happens with a Vostro 3550, Debian, Gnome and Philips 1080p television.

As soon as I connect the HDMI it starts doing it and goes from mirror to just the laptop display to just the TV to conjugated at intervals of 15 seconds to 5 minutes.

The Fn F1 command and the display tab change it only for it to continue happenning.

I should also mention that the TV shifts from 1080p and a more contrasted image with less quality throughout this toggling.

xrandr

>Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
LVDS1 connected (normal left inverted right x axis y axis)
   1366x768       60.0 +   40.1  
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 640mm x 360mm
   1920x1080      60.0*+   50.0     30.0     25.0     30.0     25.0     24.0  
   1280x1024      60.0  
   1360x768       59.8  
   1280x720       60.0     50.0  
   1440x576       25.0  
   1024x768       60.0  
   1440x480       30.0  
   800x600        60.3  
   720x576        50.0  
   720x480        59.9  
   640x480        60.0     59.9  
DP1 disconnected (normal left inverted right x axis y axis)

after

xrandr --output LVDS1 --mode 1360x768 --output HDMI1 --same-as LVDS1

Screen 0: minimum 320 x 200, current 1360 x 768, maximum 8192 x 8192
LVDS1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768       60.0 +   40.1  
   1360x768       59.8*    60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 640mm x 360mm
   1920x1080      60.0 +   50.0     30.0     25.0     30.0     25.0     24.0  
   1280x1024      60.0  
   1360x768       59.8* 
   1280x720       60.0     50.0  
   1440x576       25.0  
   1024x768       60.0  
   1440x480       30.0  
   800x600        60.3  
   720x576        50.0  
   720x480        59.9  
   640x480        60.0     59.9  
DP1 disconnected (normal left inverted right x axis y axis)

I tried stopping udev in case that was causing the toggling:

root@mach:/home/rt# sudo service udev stop
[ ok ] Stopping the hotplug events dispatcher: udevd.

root@mach:/home/rt# xrandr
Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192
LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768       60.0*+   40.1  
   1360x768       59.8     60.0  
   1024x768       60.0  
   800x600        60.3     56.2  
   640x480        59.9  
VGA1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+1366+0 (normal left inverted right x axis y axis) 640mm x 360mm
   1920x1080      60.0*+   50.0     30.0     25.0     30.0     25.0     24.0  
   1280x1024      60.0  
   1360x768       59.8  
   1280x720       60.0     50.0  
   1440x576       25.0  
   1024x768       60.0  
   1440x480       30.0  
   800x600        60.3  
   720x576        50.0  
   720x480        59.9  
   640x480        60.0     59.9  
DP1 disconnected (normal left inverted right x axis y axis)
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Do you have an xorg.conf? If so, please post it. Does it work if you set it up using xrandr? –  terdon Oct 30 '13 at 0:29
    
@terdon question has been edited –  SurvMach Oct 30 '13 at 0:37
    
I was thinking about trying to manually set up the resolution with xrandr. Something like xrandr --output LVDS1 --mode 1360x768 --output HDMI1 --same-as LVDS1 . If xrand makes the changes persistent, play around with it until you find the right mode and we can see about making it automatic. Thanks for deleting the cross-post by the way. –  terdon Oct 30 '13 at 0:42
    
@terdon I must be honest and say that I don't know how xrandr works but I would definitely read whatever I could get given that this is keeping me from leaving windows. –  SurvMach Oct 30 '13 at 0:46
    
@terdon looking at some wikis and I hope to be up to par to give it a shot. –  SurvMach Oct 30 '13 at 0:49

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