04-30-2018, 06:16 AM | #1 |
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Join Date: Apr 2018
Posts: 7
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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! |
04-30-2018, 08:52 PM | #2 |
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Join Date: Apr 2017
Posts: 3
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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 |
05-01-2018, 07:38 PM | #3 |
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Join Date: Apr 2018
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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! |
05-28-2018, 05:04 PM | #4 |
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Join Date: May 2018
Posts: 6
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I just upgraded from Ubuntu 14.04 to 18.04 and am also awaiting DisplayLink 18.04 support.
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05-30-2018, 10:53 AM | #5 |
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Join Date: Jun 2016
Posts: 12
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This worked for me:
Code:
gtf 1920 1080 60 xrandr --newmode "1920x1080_60.00" 172.80 1920 2040 2248 2576 1080 1081 1084 1118 -HSync +Vsync xrandr --addmode DVI-I-1-1 "1920x1080_60.00" xrandr --output DVI-I-1-1 --mode "1920x1080_60.00" Replace DVI-I-1-1 with your xrandr DisplayLink output. |
05-30-2018, 04:48 PM | #6 | |
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Join Date: Apr 2018
Posts: 7
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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. Last edited by michael123; 05-31-2018 at 02:55 PM. |
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05-31-2018, 02:58 PM | #7 |
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Join Date: Apr 2018
Posts: 7
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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. |
07-12-2018, 10:19 AM | #8 |
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Join Date: Jul 2018
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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 |
07-27-2018, 04:13 PM | #9 |
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Join Date: Jul 2018
Posts: 1
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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. Last edited by Jens_JI; 07-27-2018 at 04:46 PM. |
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