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patches: Add DisplayLink support (#15)

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Ludwig Beuttel 2024-06-11 17:11:49 +02:00 committed by GitHub
parent 91de8da4b6
commit 422207dbcf
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@ -0,0 +1,29 @@
This patch adds support is DisplayLink and the DisplayLink driver.
The following comes from:
https://github.com/muellerjoel/wlroots-displaylink
diff --git a/render/egl.c b/render/egl.c
index e3839c7d..558cff00 100644
--- a/render/egl.c
+++ b/render/egl.c
@@ -490,8 +490,21 @@ static int open_render_node(int drm_fd) {
}
wlr_log(WLR_DEBUG, "DRM device '%s' has no render node, "
"falling back to primary node", render_name);
+
+ drmVersion *render_version = drmGetVersion(drm_fd);
+ if (render_version != NULL && render_version->name != NULL) {
+ wlr_log(WLR_DEBUG, "DRM device version.name '%s'", render_version->name);
+ if (strcmp(render_version->name, "evdi") == 0) {
+ free(render_name);
+ render_name = malloc(sizeof(char)*15);
+ strcpy(render_name, "/dev/dri/card0");
+ }
+ drmFreeVersion(render_version);
+ }
}
+ wlr_log(WLR_DEBUG, "open_render_node() DRM device '%s'", render_name);
+
int render_fd = open(render_name, O_RDWR | O_CLOEXEC);
if (render_fd < 0) {
wlr_log_errno(WLR_ERROR, "Failed to open DRM node '%s'", render_name);