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#1 2019-09-19 23:37:56
- vitor
- Member
- Registered: 2010-11-29
- Posts: 30
4k monitor not working with x250 plugged on dock station
Hello,
I have a thinkpad x250 and a pro dock station but I'm unable to make the display port work with a 4k monitor. How can I make it work? Where can I look to debug more about this? The xrandr command bellow don't show the display port connected even if the cable is connected into the dock station.
X250:~ $ xrandr -q
Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
eDP1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 280mm x 160mm
1920x1080 60.04*+
1680x1050 59.88
1400x1050 59.98
1600x900 60.00 59.95 59.82
1280x1024 60.02
1400x900 59.96 59.88
1280x960 60.00
1368x768 60.00 59.88 59.85
1280x800 59.81 59.91
1280x720 59.86 60.00 59.74
1024x768 60.00
1024x576 60.00 59.90 59.82
960x540 60.00 59.63 59.82
800x600 60.32 56.25
864x486 60.00 59.92 59.57
640x480 59.94
720x405 59.51 60.00 58.99
640x360 59.84 59.32 60.00
DP1 disconnected (normal left inverted right x axis y axis)
DP2 disconnected (normal left inverted right x axis y axis)
HDMI1 disconnected (normal left inverted right x axis y axis)
HDMI2 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)I'm currently using kernel 5.2.13-arch1-1-ARCH and i3-wm 4.17.1 (i3-gaps). Can you guys point me the right direction?
Last edited by vitor (2019-09-20 11:44:03)
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#2 2019-09-24 12:56:08
- yggdrasil673
- Member
- Registered: 2019-09-14
- Posts: 9
Re: 4k monitor not working with x250 plugged on dock station
Have you tried activating the monitor with arandr instead? It's a gui that will let you check a box to turn on a display. If that doesnt work you may need to add additional higher resolutions via xrandr (see that article for instructions). Many video cards, especially Intel, will let you set any number of resolutions between 1920 and 3840, e.g., 2320x1305, etc.
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#3 2019-09-24 14:11:30
- seth
- Member
- From: Won't reply 2 private help req
- Registered: 2012-09-03
- Posts: 78,347
Re: 4k monitor not working with x250 plugged on dock station
The output is not considered connected… and arandr is just an xrandr frontend.
@vitor, do you boot w/ the notebook in the dock? Does reconnecting the elements (output and dock) in different orders (dock, DP; DP, dock) have any impact?
Do the other ports of the dock (USB, audio, whatnot) work?
dmesg errors when you plug the dock?
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