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Whenever I open a .mp4 file using the default videos application on Ubuntu 18.04, this obnoxious 'Unknown' icon in the taskbar pops up that I can't get rid of. The description of the window when hovered over is simply 'OpenGL Renderer'

Photo of the icon in question

Edit: Output of glxinfo | grep renderer:

GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
Extended renderer info (GLX_MESA_query_renderer):
OpenGL renderer string: Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2)

Edit2: Unfortunately, the suggested duplicates don't really solve my problem. That question seems to deal with having icons that have permanently changed to question marks, even when the icon is dormant in the taskbar. My issue is precisely as follows:

  1. All icons in the taskbar or otherwise are as expected. I open a .mp4 file using totem (the Videos application)

  2. The .mp4 file is opened and plays without issue in the Videos application, and the Videos application has the correct icon

  3. However, the error-style second icon appears in the taskbar. When hovered, it is simply labeled Unknown. When right-clicked, it is labeled OpenGL Renderer. I cannot close the 'window' from this icon (which doesn't seem to actually exist anywhere on my screen), but the icon automatically disappears once I close my .mp4 file.

mwm
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1 Answers1

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This is disappointingly common on Ubuntu, possibly naming mismatches. First try overriding the Suru Icon Pack (default for Ubuntu 18).

Install it

sudo apt-get update
sudo apt-get install suru-icon-theme

Apply it

gsettings set org.gnome.desktop.interface icon-theme Suru

On Unity you can use the Tweak tool 

sudo apt-get install unity-tweak-tool

In case you have any issues installing Suru from the repo's, try downloading it through this article.

Another solution is to switch to a new icon pack, I've had far less occurrences since using the Pop Icon Pack.

Dawoodjee
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