xrandr doesn’t detect display ports
- by Psyhister
I have a ThinkPad T510 laptop with Gentoo Linux installed on it and I can’t manage to get VGA and DisplayPort working. xrandr -q won’t show them, so I’m guessing, that there’s a problem with my kernel configuration, but I wasn’t able to find the options responsible for these ports. Here’s the output from xrandr -q:
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 320 x 175, current 1366 x 768, maximum 1366 x 768
default connected 1366x768+0+0 0mm x 0mm
1366x768 50.0* 51.0 52.0
1024x768 53.0 54.0
832x624 55.0
800x600 56.0 57.0 58.0 59.0 60.0
720x400 61.0
700x525 62.0
640x512 63.0 64.0
640x480 65.0 66.0 67.0 68.0 69.0
640x400 70.0
640x350 71.0
576x432 72.0
512x384 73.0 74.0 75.0 76.0 77.0
416x312 78.0
400x300 79.0 80.0 81.0 82.0 83.0
360x200 84.0
320x240 85.0 86.0 87.0 88.0
320x200 89.0
320x175 90.0
Can anyone help me figure out what the problem is and how to get the video connections to work?