2

I was checking out XRandr and I ran it rogue and it showed this in one of the lines :

Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767

Does this mean I can configure it to a maximum of maximum 32767 x 32767 pixels ?

It can use 1080 in HDMI but will it be possible in the laptop monitor ?

I managed to add a Virtual display

This is GTF output :

gtf 1920 1080 60 -x

# 1920x1080 @ 60.00 Hz (GTF) hsync: 67.08 kHz; pclk: 172.80 MHz
  Modeline "1920x1080_60.00"  172.80  1920 2040 2248 2576  1080 1081 1084 1118  -HSync +Vsync

This what I get when adding the mode to the laptop screen

xrandr --addmode LVDS1 1920x1080_60.00
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  140 (RANDR)
  Minor opcode of failed request:  18 (RRAddOutputMode)
  Serial number of failed request:  34
  Current serial number in output stream:  35

This is my XRANDR output now

LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 194mm
   1366x768      60.00*+  40.00  
   1360x768      59.80    59.96  
   1280x720      60.00  
   1024x768      60.00  
   1024x576      60.00  
   960x540       60.00  
   800x600       60.32    56.25  
   864x486       60.00  
   640x480       59.94  
   720x405       60.00  
   680x384       60.00  
   640x360       60.00  
DP1 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
  1920x1080_60.00 (0x100) 172.800MHz -HSync +VSync
        h: width  1920 start 2040 end 2248 total 2576 skew    0 clock  67.08KHz
        v: height 1080 start 1081 end 1084 total 1118           clock  60.00Hz
  1440x1080_60.00 (0x101) 129.870MHz -HSync +VSync
        h: width  1440 start 1536 end 1688 total 1936 skew    0 clock  67.08KHz
        v: height 1080 start 1081 end 1084 total 1118           clock  60.00Hz
1

The maximum resolution that xrandr shows is that of the maximum virtual screen size.

The closest information I can find to help you with your question is:

https://pkg-xorg.alioth.debian.org/howto/use-xrandr.html#_placing_outputs_in_a_virtual_screen

Snipet:

Let’s have a look at the maximal virtual screen size, we see 4096x4096 in this example:

$ xrandr|head -1
Screen 0: minimum 320 x 200, current 1280 x 800, maximum 4096 x 4096

With DRI and without KMS, that might be needed. Indeed, drivers will often create a default virtual screen with small dimensions, for instance 1600x1200, to reduce memory consumption.

If you plan to use multiple outputs displaying different zones, you should configure your xorg.conf by adding a Virtual line to the Display subsection in the Screen section.

Section "Screen"
  …
  SubSection "Display"
    Depth 24
    Virtual 3000 2000
  EndSubSection
EndSection

Also see https://askubuntu.com/a/186616/231142

Hope this helps!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.