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#1 2019-11-06 12:08:03

seho
Member
Registered: 2019-10-07
Posts: 7

Thinkpad X1E - Thunderbolt Lenovo Dock HDMI/DisplayPort not working

I have a problem with my "Think Pad Thunderbolt 3 Workstation Dock" https://support.lenovo.com/de/de/solutions/pd500252

When I connect my screen to the HDMI or DisplayPort connector on the dock, it's not working.

Only the HDMI port on the notebook self is working.

I'm running bbswitch and nvidia-xrun. And use cinnamon as desktop manager.

[sebastian@seb-arch ~]$ cat .nvidia-xinitrc 
if [ $# -gt 0 ]; then
    $*
else
    cinnamon-session
fi

Also xrandr doesn't show anything connected to the displayports

Only on HDMI-0 but thats the connector on the thinkpad.

[sebastian@seb-arch ~]$ xrandr 
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767
DP-0 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-0 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 697mm x 392mm
   3840x2160     29.98*+  29.97  
   3840x1080     59.97  
   2560x1600     59.97  
   2560x1440     59.95  
   1920x2160     59.99    29.95  
   1920x1200     59.88  
   1920x1080     60.00    59.94    29.97  
   1680x1050     59.95  
   1600x1200     60.00  
   1600x900      60.00  
   1280x1024     60.02  
   1280x800      59.81  
   1280x720      60.00    59.94  
   1024x768      60.00  
   800x600       60.32  
   720x480       59.94  
   640x480       59.94    59.93  
eDP-1-1 connected (normal left inverted right x axis y axis)
   3840x2160     60.00 +  59.98    59.97  
   3200x1800     59.96    59.94  
   2880x1620     59.96    59.97  
   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  
  2560x1440 (0x50) 241.500MHz +HSync -VSync
        h: width  2560 start 2608 end 2640 total 2720 skew    0 clock  88.79KHz
        v: height 1440 start 1443 end 1448 total 1481           clock  59.95Hz
  1920x1200 (0x59) 193.250MHz -HSync +VSync
        h: width  1920 start 2056 end 2256 total 2592 skew    0 clock  74.56KHz
        v: height 1200 start 1203 end 1209 total 1245           clock  59.88Hz
  1600x1200 (0x5f) 162.000MHz +HSync +VSync
        h: width  1600 start 1664 end 1856 total 2160 skew    0 clock  75.00KHz
        v: height 1200 start 1201 end 1204 total 1250           clock  60.00Hz
  1680x1050 (0x60) 146.250MHz -HSync +VSync
        h: width  1680 start 1784 end 1960 total 2240 skew    0 clock  65.29KHz
        v: height 1050 start 1053 end 1059 total 1089           clock  59.95Hz
  1280x1024 (0x67) 108.000MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock  63.98KHz
        v: height 1024 start 1025 end 1028 total 1066           clock  60.02Hz
  1280x800 (0x71) 83.500MHz -HSync +VSync
        h: width  1280 start 1352 end 1480 total 1680 skew    0 clock  49.70KHz
        v: height  800 start  803 end  809 total  831           clock  59.81Hz
  1024x768 (0x78) 65.000MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock  48.36KHz
        v: height  768 start  771 end  777 total  806           clock  60.00Hz
  800x600 (0x87) 40.000MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock  37.88KHz
        v: height  600 start  601 end  605 total  628           clock  60.32Hz
  640x480 (0x94) 25.175MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.47KHz
        v: height  480 start  490 end  492 total  525           clock  59.94Hz

Currently i'm running the following kernel

5.3.8-arch1-1

I'm pretty new to the nvidia stuff in linux. I used only ATI in past in linux (and currently i think i will do again in the future)

Does someone use the same dock and got the displayports running?
Or maybe some has a hint where to look to get the display ports running.

Kind regards,
Sebastian

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#2 2019-11-06 12:28:37

V1del
Forum Moderator
Registered: 2012-10-16
Posts: 7,771

Re: Thinkpad X1E - Thunderbolt Lenovo Dock HDMI/DisplayPort not working

Is the nvidia card even relevant?

lspci | egrep 'VGA|3D'

did you enable/allow/permit the thunderbolt connection? https://wiki.archlinux.org/index.php/Thunderbolt

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#3 2019-11-06 12:35:46

seho
Member
Registered: 2019-10-07
Posts: 7

Re: Thinkpad X1E - Thunderbolt Lenovo Dock HDMI/DisplayPort not working

Here is the output of lspci

[sebastian@seb-arch ~]$ lspci | egrep 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile)
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile] (rev a1)

Hmm. boltctl says dock is disconnected... But the USB devices connected to the dock are working...

[sebastian@seb-arch ~]$ sudo boltctl 
 ○ Lenovo ThinkPad Thunderbolt 3 Dock
   ├─ type:          peripheral
   ├─ name:          ThinkPad Thunderbolt 3 Dock
   ├─ vendor:        Lenovo
   ├─ uuid:          000f41f1-bd26-0801-ffff-ffffffffffff
   ├─ status:        disconnected
   ├─ authorized:    So 03 Nov 2019 14:56:23 UTC
   ├─ connected:     So 03 Nov 2019 14:56:23 UTC
   └─ stored:        So 05 Mai 2019 19:29:22 UTC
      ├─ policy:     auto
      └─ key:        no

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#4 2019-11-06 14:17:16

seho
Member
Registered: 2019-10-07
Posts: 7

Re: Thinkpad X1E - Thunderbolt Lenovo Dock HDMI/DisplayPort not working

Okay. Thanks for the hint.

I finally managed to get dock as connected.  Somehow the dock needed a powercycle while the system was running.

But still have a weird problem using the ports on the dock. But thats maybe something bbswitch or nvidia-xrun specific.

When I start nvidia-xrun from a virtual console, (i think it's needed to get the display ports running - please correct me if i'm wrong) starting cinnamon in most cases will fail with the message below, when no cable is connected to HDMI port on the thinkpad.

xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted)

But there were rare cases that cinnamon came up without any error.

When i start nvidia-xrun with the HDMI connected it allways works.

When cinnamon is up (HDMI connected to thinkpads HDMI port) and I plug the cable to dock then the hdmi output is also working.

Do anyone have also an idea for that problem?


Kind regards,
Sebastian

Edit: I found out the when no hdmi is connected neither to the thinkpad nor to the dock, then starting cinnamon with nvidia-xrun allways works.

Last edited by seho (2019-11-06 14:50:03)

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