Cursor jumping and pixeling,
I just installed the USB to HDMI extension to may Ubuntu 20.04 LTS. Installed displaylink-driver-5.3.1.34.run. It's a thinkPad laptop with closed screen which is connected through docking station to one DisplayPort screen and one VGA screen.
The USB screen is displaying correctly. The issue i have is that as soon as i use mouse the cursor starts to jump around and sometimes pixeling. I can't perform basic operations like grab and drag as the cursor location changes. When not using mouse it seems to be stable. Changing the refresh rate for the USB to HDMI screen from 60 to 50Hz decreased the scale of the issue a little bit, but the problem persists. Tried to move the mouse to another USB port and even change the mouse Is there any solution for that ? |
I am using Ubuntu 20.04, Wayland, an rx5700
5.3.1 is the displaylink version Installation was a breeze, however performance is very bad. I am on a dl 6950 On Windows performance is great, here however it's not usable. I am using Wayland. Monitor setup: Left: 1080p Potrait Center: 1440p 144hz (On primary gpu) Right: 4k 60hz This is a desktop system, I can plug all the displays into the rx5700 and it works fine, but I am testing this device. There is extreme lag moving the mouse/dragging windows. |
please cgeck https://www.displaylink.org/forum/showthread.php?t=67148
@jigglywiggly
Having problems? Please check https://www.displaylink.org/forum/sh...ad.php?t=67148 It is working fine so far. |
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EDIT: Went ahead and tried it, rebooted it and it didn't do anything. |
Unfortunately this performance issue also affects my AMD-only laptop running Ubuntu 20.04 and my new docking station.
Is there any ETA for possible fix? |
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My workaround has been to stay with Ubuntu 18.04 using the DisplayLink 5.3.1 driver for Ubuntu for the time being alongside the AMDGPU-PRO driver as that seems to be the only working configuration for me, but it's not ideal, especially considering I'm having to use the AMDGPU-PRO driver which has had compatibility issues with running software that works fine using the AMDGPU open-source driver. The lack of proper support for AMDGPU is what's keeping me from upgrading to Ubuntu 20.04 LTS and it seems like this issue has been brought up my numerous people for a few months now with no real answers or estimations on progress. :confused: I would definitely advise DisplayLink to make their drivers fully open source, as many others have suggested over the past several years. That way, you know, us pesky Linux users wouldn't have to be so much of a bother. ;) I think it'd be to their benefit anyway, it's not like open source contributors would be seeing any of the profits DisplayLink makes and if anything it'll help to get their software available on more platforms which ultimately results in greater revenue for them. |
I just realized that all displaylink developer replies were about "1FPS problem" when laptop screen is off. I failed to find any mention of screen lag for external monitors problem. Which is a little bit worrying me. Nevertheless we have vacations season rn, lets hope this topic will be addressed soon.
I could even live some time with lagging external screen, I can just display there some static things and mainly work on my laptop screen. But this problem also affects my laptop's audio, which gets some hiccups. I cant accept it unfortunately... Quote:
https://www.displaylink.org/forum/sh...ad.php?t=67228 |
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Without these workarounds, my external monitor exhibits high latency and really bad screen tearing. The monitor behaves fine with AMDGPU-PRO, so I doubt the fix is impossible. Hopefully some sort of update is given soon considering it seems to be affecting AMDGPU users as a whole and is likely keeping some, like myself, from updating to Ubuntu 20.04 LTS. |
When is the new fix comming
Hello,
The fix worked fine, but is now running behind a few security updates. can you please append the fix to the latest version? Mark |
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