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-rw-r--r--sway/main.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/sway/main.c b/sway/main.c
index 6d13955c..cc9147b8 100644
--- a/sway/main.c
+++ b/sway/main.c
@@ -135,6 +135,29 @@ void detect_proprietary() {
"You need nvidia, nvidia_modeset, nvidia_uvm, and nvidia_drm."
"\x1B[0m\n");
}
+#ifdef __linux__
+ f = fopen("/sys/module/nvidia_drm/parameters/modeset", "r");
+ if (f) {
+ char *line = read_line(f);
+ if (line && strstr(line, "Y")) {
+ // nvidia-drm.modeset is set to 0
+ fprintf(stderr, "\x1B[1;31mWarning: You must load "
+ "nvidia-drm with the modeset option on to use "
+ "the proprietary driver. Consider adding "
+ "nvidia-drm.modeset=1 to your kernel command line "
+ "parameters.\x1B[0m\n");
+ }
+ fclose(f);
+ free(line);
+ } else {
+ // nvidia-drm.modeset is not set
+ fprintf(stderr, "\x1B[1;31mWarning: You must load "
+ "nvidia-drm with the modeset option on to use "
+ "the proprietary driver. Consider adding "
+ "nvidia-drm.modeset=1 to your kernel command line "
+ "parameters.\x1B[0m\n");
+ }
+#else
f = fopen("/proc/cmdline", "r");
if (f) {
char *line = read_line(f);
@@ -146,6 +169,7 @@ void detect_proprietary() {
fclose(f);
free(line);
}
+#endif
}
}