Add check for nvidia module and warn user

1 files changed, 19 insertions, 0 deletions

diff --git a/sway/main.c b/sway/main.c
index 9c7f21b3..20738307 100644
--- a/sway/main.c
+++ b/sway/main.c
@@ -8,6 +8,7 @@
 #include "layout.h"
 #include "config.h"
 #include "log.h"
+#include "readline.h"
 #include "handlers.h"
 #include "ipc.h"
 #include "sway.h"
@@ -31,6 +32,22 @@ static void wlc_log_handler(enum wlc_log_type type, const char *str) {
         }
 }
 
+void detect_nvidia() {
+        FILE *f = fopen("/proc/modules", "r");
+        if (!f) {
+                return;
+        }
+        while (!feof(f)) {
+                char *line = read_line(f);
+                if (strstr(line, "nvidia")) {
+                        fprintf(stderr, "\x1B[1;31mWarning: Proprietary nvidia drivers do NOT support Wayland. Use nouveau.\x1B[0m\n");
+                        free(line);
+                        return;
+                }
+                free(line);
+        }
+}
+
 int main(int argc, char **argv) {
         static int verbose = 0, debug = 0, validate = 0;
 
@@ -51,6 +68,8 @@ int main(int argc, char **argv) {
 
         wlc_log_set_handler(wlc_log_handler);
 
+        detect_nvidia();
+
         /* Changing code earlier than this point requires detailed review */
         if (!wlc_init(&interface, argc, argv)) {
                 return 1;