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gnu: mesa: Re-enable X11 protocol support for the DRI2 extension.

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Starting with Mesa 24.3, X11 protocol support for the DRI2 extension is
no longer enabled by default.  The developers are phasing it out in
favor of DRI3, and have moved it into an optional 'legacy-x11' feature.
Re-enable it to retain hardware acceleration on older systems that do
not support DRI3.

* gnu/packages/gl.el (mesa)[arguments]<#:configure-flags>: Add
'-Dlegacy-x11=dri2'.

Signed-off-by: John Kehayias <john.kehayias@protonmail.com>
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Philipp Berger 2025-07-13 06:06:45 +02:00 • committed by John Kehayias
parent 2e96dccdb7
commit a540ec794c
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@ -439,6 +439,9 @@ panfrost,r300,r600,svga,softpipe,llvmpipe,tegra,v3d,vc4,virgl,zink"))
;; Also enable the tests. ;; Also enable the tests.
"-Dbuild-tests=true" "-Dbuild-tests=true"
;; Re-enable X11 protocol support for the DRI2 extension.
"-Dlegacy-x11=dri2"
"-Dllvm=enabled") ; default is x86/x86_64 only "-Dllvm=enabled") ; default is x86/x86_64 only
;; XXX: 'debugoptimized' causes LTO link failures on some drivers. The ;; XXX: 'debugoptimized' causes LTO link failures on some drivers. The