Go Back   DisplayLink Forum > DisplayLink Graphics Technology > Linux and Open Source

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-21-2016, 12:42 PM   #1
dol
Junior Member
 
Join Date: Oct 2016
Posts: 2
Default [Solved] Partial rendiging error since 1.2

I recently upgraded the Displaylink drivers from 1.1.62 to 1.2.65.

Since the update I experience glitches. I attached a screenshot to outline the problem. I simple moved the browser window around.

https://imgur.com/m6ML1MI

My current setup:
Ubuntu 16.04 with XFCE as desktop environment.
Intel Corporation HD Graphics 520
Linux 4.4.0-45-generic x86_64
ThinkPad USB 3.0 Pro Dock
X.Org X Server 1.18.4

I'm willing to debug/assist with the developers to resolve this issue.

Update:
---------
I reenabled the compositor under 'Window Manager Tweaks' => Compositor. See this video https://www.youtube.com/watch?v=3esPpe-fclI for a better understanding of X11 and the compositors responsibility.

Last edited by dol; 10-25-2016 at 10:01 PM.
dol is offline   Reply With Quote
Old 10-23-2016, 07:07 PM   #2
mlukaszek
Senior Member
 
mlukaszek's Avatar
 
Join Date: Feb 2010
Posts: 386
Default

Is there a way to force full screen repaints in XFCE? If yes, does it mitigate the problem?

We'll try to reproduce the problem in house. Could you attach logs gathered with our Linux Support Tool?

Regards,
Michal
mlukaszek is offline   Reply With Quote
Old 10-24-2016, 10:08 AM   #3
Sparxy
Junior Member
 
Join Date: Jun 2016
Posts: 12
Default

Use the XFCE compositor (or another one) to perform full-screen repaints. (though this may be taxing on the CPU with DisplayLink).

You can also mitigate this issue by having the compositor determine which areas need repainting.
i.e. I use compton with --glx-use-copysubbuffermesa.
Sparxy is offline   Reply With Quote
Old 10-25-2016, 10:06 AM   #4
Kansuler
Junior Member
 
Join Date: Oct 2016
Posts: 2
Default

I experience this issues as well on Linux Mint with Cinnamon.

It only happens on one of the screens. On my screenshot you can see how i dragged the window across.

My setup is:
Linux Mint 18 Cinnamon 64-bit
Cinnamon 3.0.7
Kernel 4.4.0-45-generic
Intel(R) HD Graphics 4600
Dell D3100 Dock
X.Org X Server 1.18.4

Edit:
After reboot it seems like both of the screens have the issue. Not sure what I did to make it work on one of them.
Attached Images
File Type: jpg IMG_20161025_104754.jpg (102.1 KB, 2 views)
Attached Files
File Type: zip logs_2016-10-25T10:59:40.832719.zip (1.19 MB, 1 views)

Last edited by Kansuler; 10-25-2016 at 10:14 AM.
Kansuler is offline   Reply With Quote
Old 10-25-2016, 09:58 PM   #5
dol
Junior Member
 
Join Date: Oct 2016
Posts: 2
Default

Quote:
Originally Posted by Sparxy View Post
Use the XFCE compositor (or another one) to perform full-screen repaints. (though this may be taxing on the CPU with DisplayLink).

You can also mitigate this issue by having the compositor determine which areas need repainting.
i.e. I use compton with --glx-use-copysubbuffermesa.

Thx. I did disable the built in composite for some reason. I enabled the composite and the error went away.
I watched https://www.youtube.com/watch?v=3esPpe-fclI to understand the reason to run a composite.
dol is offline   Reply With Quote
Old 10-26-2016, 02:16 PM   #6
jb25
Junior Member
 
Join Date: Oct 2016
Posts: 6
Default

I had the same problem initially with Mint 18 and Cinnamon. I found a video somewhere targeted at Ubuntu but it works in mint.

Add these lines to /etc/environment
CLUTTER_PAINT=disable-clipped-redraws:disable-culling
CLUTTER_VBLANK=True

I'll be honest, I have no idea what that does, but it works.

I'll try to find the link again.
jb25 is offline   Reply With Quote
Old 10-26-2016, 04:50 PM   #7
Kansuler
Junior Member
 
Join Date: Oct 2016
Posts: 2
Default

Quote:
Originally Posted by jb25 View Post
I had the same problem initially with Mint 18 and Cinnamon. I found a video somewhere targeted at Ubuntu but it works in mint.

Add these lines to /etc/environment
CLUTTER_PAINT=disable-clipped-redraws:disable-culling
CLUTTER_VBLANK=True

I'll be honest, I have no idea what that does, but it works.

I'll try to find the link again.
Thanks! That solved my issues as well.
Kansuler is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 05:03 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.