18.04 stuck on 640x480
Hello, I have 2x 1920x1080 monitors attached to a SIIG docking station
http://www.siig.com/it-products/note...ion-usb-c.html Under 16.04, they worked great with ubuntu GNOME. I just installed Ubuntu 18.04 and the monitors are stuck in 640x480 mode. It's a System76 linux laptop (Kudu) 00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04) I tried these suggestions, but didn't get anywhere: https://support.displaylink.com/know...ent-x-upgrades I also tried adding the modes directly with xrandr in a .xprofile, but didn't get anywhere with that either. xrandr thought they were in 1920x1080, but the monitors still showed 640x480. Has anyone gotten this to work? Thanks! |
Gnome did not work, Kubuntu works
Hello,
I also had only issues with Ubuntu in Gnome. Whenever I had the docking station connected I could not even login. Xorg would right away crash and push me back to the login screen. So I tired Kubuntu and it worked, even thought the mouse flickering is worse. He'emin |
Ubuntu 18.04 LTS includes X and Gnome now, so I'm sure DisplayLink intends to support it, instead of Kubuntu. Logging in works fine, and there's no mouse flickering.
Here's a link to the output of the support tool: https://drive.google.com/file/d/1Q6R...ew?usp=sharing Why are the monitors only showing 640x480 in "Displays" and xrandr? Thanks! |
I just upgraded from Ubuntu 14.04 to 18.04 and am also awaiting DisplayLink 18.04 support.
|
This worked for me:
Code:
gtf 1920 1080 60 Replace DVI-I-1-1 with your xrandr DisplayLink output. |
Quote:
It creates a new mode, shows the resolution in the Display settings, and appears to create a 1920x1080 buffer in Gnome. But the DisplayLink is still showing a clipped 640x480 display of the center of that larger buffer. The monitor is still 640x480. |
The hardware has ports for HDMI and Displayport cables for each of 2 monitors.
The workaround was to replace the DisplayPort cables with HDMI cables. The odds of 2 cables/ports going bad at the same time is astronomical, so it seems a bug in the driver or firmware. I'm not at all happy with the support I got on this product and would not recommend DisplayLink products to anyone. |
Hello,
I would like to rule out some potential misunderstandings that might have risen and hopefully gather more information on the topic. First: do you use GNOME with Xorg or Wayland? Second: could you confirm that the monitors are fully operational (i.e. running native resolution, correct refresh rate etc.) when connected over DP directly to another machine (without a dock). Last but not least: what are the monitors you use with the dock? Best regards, Aleksander |
Hallo together
My Hardware Laptop with Intel® HD Graphics 530 (Skylake GT2) USB3 Dock: Club 3D CSV-1460, Chipset: DL-6950, 2 Displayports Fresh Ubuntu 18.04 installation. Well-known, at Time Wayland does not work together with Displaylink. XOrg does (Gnome 3.28.2). For the Installation of the Displaylink driver i used this Script: https://github.com/AdnanHodzic/displaylink-debian >>> many Thanks If i connect a Monitor direct via Displayport Cable, the Monitor will only show a resolution of 640x480. The manual xrandr solution will only generate a big Buffer around the 640x480 resolution of the Monitor. The Solution is a simple Displayport to DVI Adapter. For lack of a DVI Port at the Displayport Monitor i used a different Monitor for this Test. Since i have only one Adapter, i can only test with one Monitor. Display Rotation is also working. Plug and Play is working as expected. A Reboot is working as expected. It seems to be a very specific Displayport Problem. |
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