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#1 2026-03-15 08:27:56
- inxcvizor
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- Registered: 2026-02-19
- Posts: 11
[solved] .webm file not working
Hi, I'm using KDE's Spectacle to record a test video and it generated a .webm file. When i tried to play it using VLC (my computer defaults to VLC), it displayed an error:
Codec not supported:
VLC could not decode the format "mpgv" (MPEG-1/2 Video)
What does this mean? and how do you fix it?
Last edited by inxcvizor (2026-03-16 09:16:18)
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#2 2026-03-15 08:48:20
- Everything2067
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- Registered: 2025-06-29
- Posts: 103
Re: [solved] .webm file not working
pacman -S vlc-plugins-base
By default VLC comes with no plugins so nothing will work
How it feels to run shred/wipe in a COW system
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#3 2026-03-15 09:10:50
- inxcvizor
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- Registered: 2026-02-19
- Posts: 11
Re: [solved] .webm file not working
pacman -S vlc-plugins-base
By default VLC comes with no plugins so nothing will work
Already installed, reinstalled it. Still doesn't work, same issue, sadly.
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#4 2026-03-15 09:22:40
- seth
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- From: Don't DM me only for attention
- Registered: 2012-09-03
- Posts: 74,313
Re: [solved] .webm file not working
I suppose https://archlinux.org/packages/extra/x8 … in-ffmpeg/ will do.
Edit: though there's also https://archlinux.org/packages/extra/x8 … gin-mpeg2/
Or try mpv 
Last edited by seth (2026-03-15 09:23:38)
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#5 2026-03-15 09:34:40
- inxcvizor
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- Registered: 2026-02-19
- Posts: 11
Re: [solved] .webm file not working
I suppose https://archlinux.org/packages/extra/x8 … in-ffmpeg/ will do.
Edit: though there's also https://archlinux.org/packages/extra/x8 … gin-mpeg2/Or try mpv
ffmpeg works! Hopefully it works for other formats too!
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#6 2026-03-15 13:38:50
- seth
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- From: Don't DM me only for attention
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- Posts: 74,313
Re: [solved] .webm file not working
\o/
Please always remember to mark resolved threads by editing your initial posts subject - so others will know that there's no task left, but maybe a solution to find.
Thanks.
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#7 2026-03-15 14:50:33
- Everything2067
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- Registered: 2025-06-29
- Posts: 103
Re: [solved] .webm file not working
seth wrote:I suppose https://archlinux.org/packages/extra/x8 … in-ffmpeg/ will do.
Edit: though there's also https://archlinux.org/packages/extra/x8 … gin-mpeg2/Or try mpv
ffmpeg works! Hopefully it works for other formats too!
Also try installing vlc-plugins-all
How it feels to run shred/wipe in a COW system
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