New display resolution

[AmandaONeill]

hello fellow users
ill keep it brief, i bought a new monitor with 3440x1440 resolution
i cant seem to make it past 1920 despite having another display with 2560x1440 work flawlessly
i tried to see if xandr might show something different ill put the output below

weirdly enough the display (samsung) complains that its set to 1920 and not its resolution of 3440, DP-1 should be the mentioned display

sorry if this explanation sounds confusing, ill elaborate on anything desired and thank you in advance

DVI-D-0 connected primary 2560x1440+3840+0 (normal left inverted right x axis y axis) 698mm x 393mm
   2560x1440     59.95*+  74.78  
   1920x1200     59.88  
   1920x1080     60.00    59.94    50.00    60.00    50.04  
   1680x1050     59.95  
   1440x900      59.89  
   1280x1024     75.02    70.00    60.02  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94    59.93  
HDMI-0 connected 1920x1080+0+360 (normal left inverted right x axis y axis) 698mm x 392mm
   1920x1080     60.00*+  60.00    59.94    50.00    60.05    60.00    50.04  
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1440x576      50.00  
   1400x1050     59.98  
   1280x1024     60.02  
   1280x800      59.81  
   1280x720      60.00    59.96    50.00  
   1024x768      60.00  
   800x600       60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       59.94  
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 connected 1920x1080+1920+360 (normal left inverted right x axis y axis) 800mm x 330mm
   1920x1080     60.00*+  59.94    50.00  
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      60.00    59.94    50.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   720x576       50.00  
   720x480       59.94  
   640x480       75.00    72.81    59.94  

[joekamprad]

is your GPU capable to handle the resolution?

[AmandaONeill]

thank you for the quick reply, i was fairly certain it was and it turns out, it is
i tried a different hdmi cable and it works now

tho i am curious, does hdmi cables change technology wise enough that a cable only a few years old is incapable of putting that resolution out?
the cable wasnt faulty since it works with other monitors

[manuel]

HDMI standards are constantly evolving.
So it is possible that your older HDMI cable is not made for the same standard level as your new monitor.

That means one has to be somewhat careful when buying HDMI cables. Similar issues exist with other cables, e.g. the ethernet cables.

For example, some time ago I got a faster ethernet connection, and my old ethernet cables didn’t allow higher speeds, so I had to get better cables. Now the speed is as expected.

[AmandaONeill]

interesting, one never stops learning do they

ill keep the new cable knowledge in mind, especially for ethernet, thank you very much

[joekamprad]

https://www.hdmi.org/resource/cables