I can't open AVL drums plugins a 2nd time

Installation & Configuration Linux
#1

Hi folks – probably I’m doing something wrong, but anyway when I try to double click in this case the Black Pearl Drumkit plugin, it just fails silently. I do see an error in logs though:

2026-02-22T10:02:52 [ERROR]: failed to instantiate LV2 GUI

suil error: Failed to instantiate UI http://gareus.org/oss/lv2/avldrums#ui_gl in /usr/lib/lv2/avldrums.lv2/avldrumsUI_gl.so

Running Ardour 9.1 from source on Arch Linux. When I scan the build log, nothing jumps out at me. I did a text search for “suil” but nothing seems amiss during build.

Problem is not unique to AVL drums, but I can’t remember the other plug ins I’ve had this issue with.

Can you advise?

Thank you

#2

in short: Arch’s mesa package is broken. Updating to mesa-git >= 25.3.0 should fix this.

#3

Do I not already have ?

$ pacman -Q mesa
mesa 1:25.3.5-1
$

#4

Maybe it broke again ?