ddf31e44d7
Some time ago, 'WLR_RENDERER=pixman' stopped working properly on virtio. Appears that it only affects the atomic KMS and falling back to the legacy DRM interface was enough to work around. While legacy is a less tested codepath, I don't see any other ways to address that :'(
65 lines
2.2 KiB
Bash
Executable file
65 lines
2.2 KiB
Bash
Executable file
#!/bin/sh
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## Internal variables
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SWAY_EXTRA_ARGS=""
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## General exports
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export XDG_CURRENT_DESKTOP=sway
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export XDG_SESSION_DESKTOP=sway
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export XDG_SESSION_TYPE=wayland
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## Hardware compatibility
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# We can't be sure that the virtual GPU is compatible with Sway.
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# We should be attempting to detect an EGL driver instead, but that appears
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# to be a bit more complicated.
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case $(systemd-detect-virt --vm) in
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"none"|"")
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;;
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"kvm")
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# There's two drivers we can get here, depending on the 3D acceleration
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# flag state: either virtio_gpu/virgl or kms_swrast/llvmpipe.
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#
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# The former one causes graphical glitches in OpenGL apps when using
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# 'pixman' renderer. The latter will crash 'gles2' renderer outright.
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# Neither of those support 'vulkan'.
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#
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# The choice is obvious, at least until we learn to detect the driver
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# instead of abusing the virtualization technology identifier.
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#
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# See also: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/2871
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export WLR_RENDERER=pixman
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# 'pixman' on virtio_gpu with recent kernels is glitchy. Appears that
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# it only affects atomic KMS, and legacy interface works.
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export WLR_DRM_NO_ATOMIC=1
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# WLR_NO_HARDWARE_CURSORS=1 is not needed with legacy DRM interface
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;;
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*)
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# https://github.com/swaywm/sway/issues/6581
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export WLR_NO_HARDWARE_CURSORS=1
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;;
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esac
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## Load system environment customizations
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if [ -f /etc/sway/environment ]; then
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set -o allexport
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# shellcheck source=/dev/null
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. /etc/sway/environment
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set +o allexport
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fi
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## Load user environment customizations
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if [ -f "${XDG_CONFIG_HOME:-$HOME/.config}/sway/environment" ]; then
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set -o allexport
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# shellcheck source=/dev/null
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. "${XDG_CONFIG_HOME:-$HOME/.config}/sway/environment"
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set +o allexport
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fi
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## Unexport internal variables
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# export -n is not POSIX :(
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_SWAY_EXTRA_ARGS="$SWAY_EXTRA_ARGS"
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unset SWAY_EXTRA_ARGS
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# Start sway with extra arguments and send output to the journal
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# shellcheck disable=SC2086 # quoted expansion of EXTRA_ARGS can produce empty field
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exec systemd-cat -- /usr/bin/sway $_SWAY_EXTRA_ARGS "$@"
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