Demystifying StartupWMClass (thoughts.greyh.at)

submitted 18 hours ago by zquestz@lemmy.world to c/linux@lemmy.ml

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As the maintainer of Plank Reloaded, the most common bug report I get is "this app has the wrong icon." It's almost never the dock - it's a broken StartupWMClass in the app's .desktop file. So I wrote up how to find the right value on X11, Wayland, and KDE, and why deleting the line often fixes it.

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[-] deadcream@sopuli.xyz -5 points 16 hours ago

I wrote up

I don't think you did.

[-] zquestz@lemmy.world 9 points 15 hours ago

You can think whatever you want.

this post was submitted on 24 Jun 2026

57 points (98.3% liked)

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