Re: [trinity-users] Re: Application resolution vs desktop resolution - tde-users

8 Feb 2017

On Wednesday 08 February 2017 21.56:32 deloptes wrote:
...
  Thierry de Coulon wrote:
  My problem is this: while I have the screen
resolution setup to 1920x1080
 (and trinity desktop looks OK for this resolution), the monitor (which is
 accessed from HDMI through an HDMI to VGA converter because I use a KVM
 that needs VGA connectors) was initially "seen" as 1024x768. 
 It is interesting to know what is the output of xrandr

 I have/had similar issues with my notebook(s) and external monitor.
 Natively eDP1 supports  1366x768, while monitor does 1920x1080.

 So switching on and of the one and the other messed up from time to time
 the modesettings and I end up with unusable resolution. The external would
 refuse to accept 1920x1080. It improved recently with later 4.9 kernel and
 I did not test extensively.
 One option was to configure monitors in xorg.conf with their mod lines. I
 did this on the older notebook
 I however use now xrandr --scale as X tends to pick up the lowest common
 and it can not support different resolutions or whatever. So I put the
 bigger one to  1920x1080 and scale eDP1., which gives acceptable output.

 I have read of similar issues with KVM.

 regards

That's what I get:

Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 256mm 
x 192mm
   1024x768      60.00 +
   1920x1080     60.00*   59.94  
   1280x1024     85.02    60.02  
   1440x900      74.98    59.90  
   1280x960      60.00  
   1360x768      60.02  
   1280x800      59.91  
   1280x720     119.99    60.00    59.94  
   720x480       60.00    59.94  

To me it seems the chipset by itself can do a lot of resolutions. I am new to 
HDMI (I actually don't use it anwhere as I have no monitor with such a 
connector). So I can't test what would happen if I had a direct connection to 
the monitor.

I could imagine that the chain HDMI - HDMI to VGA (cheap chinese thing, by the 
way) - KVM switch - monitor is too much for a system that desperately tries 
to identify the monitor by itself. In the old time I would have been asked 
what my screen was...

Thierry