I have a pair of Hanns G HL247 monitor connected to my PC
I have an Nvidia GT730 Graphics card installed with three outputs, VGA, DVI and HDMI
These monitor can run at screen a resolution of 1920x1080 regardless of the connection used (vga, dvi or hdmi)
I have currently connected the monitors to VGA and HDMI and here is the problem, the VGA connected monitor displays at 1920x1080, the dvi connected monitor displays at 1600x900
I have not been able to find where the 1600x900 setting is being set,
Within XFCE setting Manager >> Settings Editor, I have edited the display setting under DVI-D-0 changing the 1600x900 to 1920x1080, I then click save but no sooner do I close the window than something reverts it back to 1600x900
I do have an HDMI lead but I am reluctant to try until I know where the setting is that keeps changing my settings back
I ran xrandr -q
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mit@andora:~$ xrandr -q
Screen 0: minimum 8 x 8, current 3520 x 1080, maximum 16384 x 16384
VGA-0 connected 1920x1080+1600+0 (normal left inverted right x axis y axis) 521mm x 293mm
1920x1080 59.93*+ 60.00
1680x1050 59.95
1600x1200 60.00
1440x900 59.89
1400x1050 59.98
1280x1024 75.02 60.02
1280x960 60.00
1152x864 75.00
1024x768 75.03 70.07 60.00
800x600 75.00 72.19 60.32 56.25
640x480 75.00 72.81 59.94
DVI-D-0 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
1024x768 60.00 +
1600x900 59.82*
1400x900 59.88
1368x768 59.88 59.85
1360x768 59.96 59.80
1280x800 59.91 59.81
1280x720 59.86 59.74
1152x864 60.00
1024x576 59.90 59.82
960x540 59.82 59.63
864x486 59.92 59.57
800x600 72.19 60.32 56.25
800x450 59.82
700x450 59.88
684x384 59.88 59.85
680x384 59.96 59.80
640x480 59.94
640x400 59.98 59.88
640x360 59.86 59.83
512x384 60.00
512x288 60.00 59.92
480x270 59.82 59.63
432x243 59.92 59.57
400x300 72.19
320x240 60.05
HDMI-0 disconnected (normal left inverted right x axis y axis)
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mit@andora:~$ xrandr --addmode DVI-D-0 1920x1080
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: 35
Current serial number in output stream: 36