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For around 1 week so far I've noticed screen tears and other graphical glitches.

I have only noticed them while browsing (in Chrome and Firefox), either while watching streams in flash or html5 format (Netflix, YouTube, twitch, even gifs) or scrolling through a big screen of text or images.

Here are some examples of the glitches I see:

screen drawn with bad horizonal alignment in one place

tear

tear

tear

This is really annoying, since it is constant and is very distracting.

The issue started on Ubuntu 16.04, and I did a fresh reinstall of Ubuntu 17.04 thinking this would solve it, but it didn't.

Currently I am running Ubuntu 17.04 64-bit version on an old Dell Studio 17. This is the gpu info:

lspci | grep VGA
02:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV730/M96 [Mobility Radeon HD 4650/5165]

I have tried 4 different kernel versions and the issue persists:

  1. 4.6.3
  2. 4.10.0
  3. 4.11.12
  4. 4.12.3

I don't know what to do to fix this, can you guys help me figure this out?

Zanna
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Larry Atta
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    I've also experience similar graphical glitches, and even worse, when scrolling my web browser and watching videos. It even happens in the TTY. I just want to know, how did you take those screenshots capturing the tears? – takatakatek Jul 28 '17 at 17:43
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    @takatakatek I used the print screen function while playing videos, I took a ton and I was lucky to capture the tears in some of them. – Larry Atta Jul 28 '17 at 21:21

1 Answers1

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Install Compizconfig Settings Manager

sudo apt install compizconfig-settings-manager

In there, go to:

General -> Composite -> Unredirect Match

and add Google-chrome to the list. Be careful with CCSM - it's very powerful.

Zanna
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Mikko Niemelä
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  • I did a backup of the default values and removed all the Chrome/Chromium and Firefox since it was being excluded and then I added Firefox and Chrome.

    The question I have is, do I need to activate Composite or just adding the applications to the list is more than enough?

     – Larry Atta Jul 28 '17 at 21:34
  • Well I did what you said but it didn't work for me. Same results with Composite enabled and disabled.

    Thanks for the suggestion though.

     – Larry Atta Jul 29 '17 at 00:00