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[SOLVED] Plasma X11 transparency broken
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PureTryOut
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Joined: 05 Nov 2016
Posts: 12

PostPosted: Mon Feb 19, 2018 8:40 am    Post subject: [SOLVED] Plasma X11 transparency broken Reply with quote

Since an update from like a month ago (not sure what was updated at the time), transparency has been broken for me using Plasma on X11 (it works fine on Wayland). Everything that's supposed to show any opacity shows black instead. For example the main panel and the Latte dock background.

How my Latte dock shows (which has background set to transparent):
https://i.imgur.com/mX7IqHh.png

This happens using Qt 5.9.4, Plasma 5.11.5, and Mesa 18.0.0_rc4 on Intel Integrated Graphics 530.


Last edited by PureTryOut on Mon Feb 19, 2018 9:54 am; edited 1 time in total
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asturm
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Joined: 05 Apr 2007
Posts: 6831
Location: Austria

PostPosted: Mon Feb 19, 2018 8:57 am    Post subject: Reply with quote

Make sure compositor is enabled in systemsettings, remove ~/.cache, downgrade to mesa-17, in that order.
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backend.cpp:92:2: warning: #warning TODO - this error message is about as useful as a cooling unit in the arctic
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PureTryOut
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Joined: 05 Nov 2016
Posts: 12

PostPosted: Mon Feb 19, 2018 9:54 am    Post subject: Reply with quote

Downgrading Mesa did the job, thanks. A shame, but I'm glad it's resolved.
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