DisplayLink 3100 / Ubuntu 16.04
 

Unable to get a monitor recognized through the DisplayLink device.

Behavior: I plug the monitor into the DisplayLink. Mouse & Keyboard operate fine, Display is not recognized.

I plug the monitor into the Laptop HDMI, Display is recognized and works fine.


D3100
XPS 15 Non-Touch
Ubuntu 16.04 LTS
Linux 4.4.0-22-generic #40-Ubuntu SMP Thu May 12 22:03:46 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Nvidia 364.19

$ lsmod |grep evdi
evdi 40960 1
drm_kms_helper 139264 3 evdi,i915_bpo,nvidia_drm
syscopyarea 16384 2 evdi,drm_kms_helper
sysfillrect 16384 2 evdi,drm_kms_helper
sysimgblt 16384 2 evdi,drm_kms_helper
drm 360448 12 evdi,i915_bpo,drm_kms_helper,nvidia_drm

$ sudo service displaylink status
● displaylink.service - DisplayLink Manager Service
Loaded: loaded (/lib/systemd/system/displaylink.service; enabled; vendor preset: enabled)
Active: active (running) since Mon 2016-05-16 15:19:36 CDT; 26min ago
Process: 1314 ExecStartPre=/sbin/modprobe evdi (code=exited, status=0/SUCCESS)
Main PID: 1423 (DisplayLinkMana)
Tasks: 34 (limit: 512)
CGroup: /system.slice/displaylink.service
└─1423 /usr/lib/displaylink/DisplayLinkManager

May 16 15:19:36 carbon systemd[1]: Starting DisplayLink Manager Service...
May 16 15:19:36 carbon systemd[1]: Started DisplayLink Manager Service.



I'm unsure of how to provide additional debugging. I can attach the /var/log/displaylink logs if you like.

Looks like you're using a proprietary driver for your NVIDIA card. This is unfortunately not a supported configuration, but you may try to force "power saving mode" - let me know if this helps.

Logs can be gathered using a Linux Support Tool - see http://support.displaylink.com/knowl...to-displaylink

Thanks,
Michal

Is there any ETA on when this will support these proprietary drivers? Kind of a shame to not be able to use the better GPU here.

You can try to enable KMS for NVIDIA proprietary driver, making it compatible with modesetting. AFAIK this is not the default. Let us know if it works.

Cheers,
Michal