I am trying to set up this monitor:
http://commercial.asus.com/product/detail/vs247h-p-lcd-monitor
I am able to connect the monitor and use it in various screen configurations, but have not yet been able to set it to the correct 1:1 resolution.
The resolution listed for this monitor is 1920 x 1080
. This does not appear as an option in the "Displays" GUI when I plug in a VGA cable. So, I attempted to follow the instructions here for adding resolutions:
https://wiki.ubuntu.com/X/Config/Resolution
My attempt:
$ cvt 1920 1080
\# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
$ xrandr --newmode "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
$ xrandr --addmode CRT1 1920x1080_60.00X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 156 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 29
Current serial number in output stream: 30
The same thing happened with two different laptops.
In case it helps, this is what the output of xrandr
looks like (for one of the laptops):
$ xrandr
Screen 0: minimum 320 x 200, current 1366 x 768, maximum 1600 x 1600
LVDS connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mm
1366x768 60.0*+
1360x768 60.0
1280x768 60.0
1280x720 60.0
1024x768 60.0
1024x600 60.0
800x600 60.0
800x480 60.0
640x480 60.0
DFP1 disconnected (normal left inverted right x axis y axis)
CRT1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1600x1200 60.0 +
1400x1050 60.0
1600x900 60.0
1280x1024 60.0
1440x900 59.9
1280x960 60.0
1360x768 60.0*
1280x800 59.8
1152x864 60.0
1280x768 59.9
1280x720 60.0
1024x768 60.0
1024x600 60.0
800x600 60.3
800x480 60.0
720x480 60.0
640x480 59.9
1920x1080_60.00 (0xef) 173.0MHz
h: width 1920 start 2048 end 2248 total 2576 skew 0 clock 67.2KHz
v: height 1080 start 1083 end 1088 total 1120 clock 60.0Hz
The "Displays" GUI gives the following error when I attempt to set up dual-monitor arrangements which would create virtual screens larger than 1600x1600
:
The selected configuration for displays could not be applied:
requested position/size for CRTC 148 is outside the allowed limit: position=(1366, 0), size=(1360, 768), maximum=(1600, 1600)
A maximum of 1600x1600
would rule out the correct resolution, so perhaps this has to do with the problem.
Any suggestions appreciated!