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Add WLR_DRM_DEVICES workaround for inconsistent /dev/dri/card* paths

jlo62 2024-05-12 10:18:26 +02:00
parent b48a175e49
commit 85929ff323
1 changed files with 13 additions and 1 deletions
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14
Home.md

@ -674,6 +674,18 @@ WLR_DRM_DEVICES=/dev/dri/card0:/dev/dri/card1 sway
The first card is used for actual rendering, and display buffers are copied to the secondary cards for any displays connected to them.
If your card paths aren't consistent (for example with eGPUs), you cannot use paths from `/dev/dri/by-path`, as they contain the delimiter which (unfortunately) cannot be escaped.\
As a workaround you can create symlinks for the cards with a udev rule (`/etc/udev/rules.d/set-dri-links.rules`):
```
KERNEL=="card*", SUBSYSTEM=="drm", ATTRS{vendor}=="0x1002", ATTRS{device}=="0x747e", SYMLINK+="dri/by-name/egpu"
KERNEL=="card*", SUBSYSTEM=="drm", ATTRS{vendor}=="0x1002", ATTRS{device}=="0x1681", SYMLINK+="dri/by-name/igpu"
```
You can get the ATTRS{vendor} and ATTRS{device} from `udevadm info /dev/dri/cardX --attribute-walk`\
and set the variable as following:
```sh
WLR_DRM_DEVICES=/dev/dri/by-name/egpu:/dev/dri/by-name/igpu
```
### My GTK+3 theme isn't working
See [GTK 3 settings on Wayland](./GTK-3-settings-on-Wayland).
@ -845,7 +857,7 @@ DRI3 not available
or VA-API fails to initialize.
Sway 1.10 has removed support for the legacy `wl_drm` Wayland protocol, which is still used by Xwayland 23.2.4 and earlier, libva 2.20.0 and earlier, and AMDVLK.
Sway 1.10 has removed su§pport for the legacy `wl_drm` Wayland protocol, which is still used by Xwayland 23.2.4 and earlier, libva 2.20.0 and earlier, and AMDVLK.
As a workaround, the legacy `wl_drm` Wayland protocol can be re-enabled manually by passing `-Dlegacy-wl-drm` to Sway.