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Thread Tools | Search this Thread | Display Modes |
06-13-2017, 02:38 PM | #1 |
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Join Date: Feb 2010
Posts: 386
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[Updated] DisplayLink Ubuntu driver with GPUs using modesetting X driver
Updated 10.10.2017: The following is true for all cases that would normally use page flips enabled in modesetting by default
Hi, Many of you, who are using Intel GPUs were bitten by the update of X that made the video part of your docking stations not work at all, or caused weird issues. Here's what we found out so far. Firstly, please read the FAQ article capturing the problem, and two proposed workarounds: http://support.displaylink.com/knowl...ticles/1181623 Long story short: modesetting driver is used by default now for Intel, and the recent changes to it, together with the changes to present code in X are causing page flipping to be enabled in some parts of X, but disabled in others. This happened on both 1.18 and 1.19 branches of X.org just before releasing from them, so both up-to-date Ubuntu 16.04.x and 17.04 are affected by it. Trunk code of X is already changing in the area in question, however there may be more work needed for page flipping to work properly with evdi. We invite everyone to work with X developers and propose changes to both X and evdi to help us see such issues early enough to be able to react. The possible workarounds for now are:
Regards, Michal Last edited by mlukaszek; 10-11-2017 at 08:15 AM. |
06-13-2017, 04:37 PM | #2 | |
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Join Date: Jul 2013
Posts: 15
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The second suggestion caused X to fail to load on my system and left me with a command line only. I deleted the config file and rebooted, and X loaded correctly again.
I found that to get the default driver working, I had to use the following config: Quote:
-- Edit --- I've found that using the newer drivers with PageFlip disabled causes a huge increase in CPU usage, and an accompanying increase in processor temperature/fan activity. The old driver, playing Netflix in Chrome will hover around 60°C, whereas the new one with PageFlip disabled will be around 75°C for my system at least. The other issue I have is that with PageFlip disabled, video has a far increased tearing rate, and is not so great to watch. I have now returned to the old driver until X is updated. The only issue I have with the old driver is that the mouse cursor flickers occasionally, and moving the mouse around the screen isn't particularly smooth compared to the new driver. Last edited by dylanparry; 07-10-2017 at 11:32 AM. |
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06-16-2017, 05:17 AM | #3 |
Junior Member
Join Date: Jun 2017
Posts: 1
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Nothing suggested works for me. All latest updates installed and latest DisplayLink driver.
Ubuntu 16.04 LTS: I use triple monitor config side by side (left to right: internal+2xdock) and issues (with different configs) I encounter are:
Now I'm back on Ubuntu 14.04 LTS with 1.1.62 drivers - it works without issues. |
06-27-2017, 12:55 PM | #4 | |||
Junior Member
Join Date: Mar 2016
Posts: 14
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For me, this doesn't work at all; it boots into no graphics mode:
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Or better yet, are there any advancements on getting it to work on Wayland? |
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08-09-2017, 11:04 AM | #5 |
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Join Date: Aug 2017
Posts: 2
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Yesterday, I update & dist-upgrade my ubuntu 16.04, and displaylink suddenly doesn't work. Then I find this thread, think I was bitten by the same problem here.
I tried every combination to modify the config file (20-displaylink.conf), but none of them work. So I upload the DLSupportTool file here. Laptop: Acer aspire v13 Graphics: Intel HD Graphics 520 Kernel: 4.12 Xorg:1.18 OS: Ubuntu 16.04.3 LTS |
08-11-2017, 08:10 PM | #6 | |
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Join Date: Aug 2017
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Quote:
https://launchpad.net/~xorg-edgers/+archive/ubuntu/ppa And it suddenly works, even without the config file. I assume Xorg already fixed the bug. |
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08-17-2017, 03:51 PM | #7 | |
Junior Member
Join Date: Aug 2017
Posts: 1
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On Dell XPS 13 / Ubuntu 17.04 I had to add Screen Section to xorg configuration to make it work. Here's my /etc/X11/xorg.conf.d/20-displaylink.conf:
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10-16-2017, 07:39 AM | #8 | |
Junior Member
Join Date: Mar 2017
Posts: 4
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Quote:
I seem to have the same config, but not the same results. What DisplayLink device do you have? |
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01-17-2018, 12:16 AM | #9 |
Junior Member
Join Date: Nov 2016
Posts: 17
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Is it still necessary? Seems like no workarounds are needed with DisplayLink Driver 4.1 release.
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02-22-2018, 12:30 PM | #10 |
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Join Date: Dec 2015
Posts: 21
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It worked fine until today, with no workarounds. Now it's not working again after the Ubuntu update (16.04.3, with Intel GPU), with or without either workaround.
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