Arch Linux

LuBsticH

Member

Registered: 2022-09-09

Posts: 1

External monitor connected (as per xrandr) but displays nothing

I am encountering a weird problem: my laptop can connect to external monitors though type-c cables but not type-c to HDMI adapters. In both case, xrandr gives the same output

Screen 0: minimum 320 x 200, current 4480 x 1700, maximum 16384 x 16384
eDP-1 connected primary 2560x1700+0+0 (normal left inverted right x axis y axis) 272mm x 181mm
   2560x1700     60.00*+
   2560x1600     59.99    59.97
   2560x1440     59.99    59.99    59.96    59.95
   2048x1536     60.00
   1920x1440     60.00
   1856x1392     60.01
   1792x1344     60.01
   2048x1152     59.99    59.98    59.90    59.91
   1920x1200     59.88    59.95
   1920x1080     60.01    59.97    59.96    59.93
   1600x1200     60.00
   1680x1050     59.95    59.88
   1400x1050     59.98
   1600x900      59.99    59.94    59.95    59.82
   1280x1024     60.02
   1400x900      59.96    59.88
   1280x960      60.00
   1440x810      60.00    59.97
   1368x768      59.88    59.85
   1280x800      59.99    59.97    59.81    59.91
   1280x720      60.00    59.99    59.86    59.74
   1024x768      60.04    60.00
   960x720       60.00
   928x696       60.05
   896x672       60.01
   1024x576      59.95    59.96    59.90    59.82
   960x600       59.93    60.00
   960x540       59.96    59.99    59.63    59.82
   800x600       60.00    60.32    56.25
   840x525       60.01    59.88
   864x486       59.92    59.57
   700x525       59.98
   800x450       59.95    59.82
   640x512       60.02
   700x450       59.96    59.88
   640x480       60.00    59.94
   720x405       59.51    58.99
   684x384       59.88    59.85
   640x400       59.88    59.98
   640x360       59.86    59.83    59.84    59.32
   512x384       60.00
   512x288       60.00    59.92
   480x270       59.63    59.82
   400x300       60.32    56.34
   432x243       59.92    59.57
   320x240       60.05
   360x202       59.51    59.13
   320x180       59.84    59.32
DP-1 connected 1920x1080+2560+0 (normal left inverted right x axis y axis) 597mm x 336mm
   2560x1440     59.95 +
   1920x1080     60.00*   60.00    50.00    59.94    30.00    25.00    24.00    29.97    23.98
   1400x1050     59.95
   1280x1024     60.02
   1440x900      59.90
   1280x960      60.00
   1280x720      60.00    50.00    30.00    25.00    59.94    29.97    24.00    23.98
   1024x768      60.00
   800x600       60.32
   720x480       60.00    59.94
   640x480       60.00    59.94
DP-2 disconnected (normal left inverted right x axis y axis)

I have been searching for solutions for quite a while. Some suggests set the output/changing resolution through xrandr directly, so I tried setting the resolution to some lower value supported, and the command ran successfully, but still, nothing is displaying on the monitor. Others suggests setting the dGPU as the primary one for output, but my laptop is a Chromebook Pixel 2015 with Intel i7-5500U CPU and no dGPU.