Implement more thourough nvidia config check

1 files changed, 35 insertions, 4 deletions

diff --git a/sway/main.c b/sway/main.c
index ab6ecc1f..39bf225e 100644
--- a/sway/main.c
+++ b/sway/main.c
@@ -57,24 +57,55 @@ void detect_proprietary() {
         if (!f) {
                 return;
         }
+        bool nvidia = false, nvidia_modeset = false, nvidia_uvm = false, nvidia_drm = false;
         while (!feof(f)) {
                 char *line;
                 if (!(line = read_line(f))) {
                         break;
                 }
                 if (strstr(line, "nvidia")) {
-                        fprintf(stderr, "\x1B[1;31mWarning: Proprietary nvidia driver support is considered experimental.\x1B[0m\n");
-                        free(line);
-                        break;
+                        nvidia = true;
+                }
+                if (strstr(line, "nvidia_modeset")) {
+                        nvidia_modeset = true;
+                }
+                if (strstr(line, "nvidia_uvm")) {
+                        nvidia_uvm = true;
+                }
+                if (strstr(line, "nvidia_drm")) {
+                        nvidia_drm = true;
                 }
                 if (strstr(line, "fglrx")) {
-                        fprintf(stderr, "\x1B[1;31mWarning: Proprietary AMD drivers do NOT support Wayland. Use radeon.\x1B[0m\n");
+                        fprintf(stderr, "\x1B[1;31mWarning: Proprietary AMD drivers do "
+                                "NOT support Wayland. Use radeon.\x1B[0m\n");
                         free(line);
                         break;
                 }
                 free(line);
         }
         fclose(f);
+        if (nvidia) {
+                fprintf(stderr, "\x1B[1;31mWarning: Proprietary nvidia driver support "
+                        "is considered experimental. Nouveau is strongly recommended."
+                        "\x1B[0m\n");
+                if (!nvidia_modeset || !nvidia_uvm || !nvidia_drm) {
+                        fprintf(stderr, "\x1B[1;31mWarning: You do not have all of the "
+                                "necessary kernel modules loaded for nvidia support. "
+                                "You need nvidia, nvidia_modeset, nvidia_uvm, and nvidia_drm."
+                                "\x1B[0m\n");
+                }
+                f = fopen("/proc/cmdline", "r");
+                if (f) {
+                        char *line = read_line(f);
+                        if (line && !strstr(line, "nvidia-drm.modeset=1")) {
+                                fprintf(stderr, "\x1B[1;31mWarning: You must add "
+                                        "nvidia-drm.modeset=1 to your kernel command line to use "
+                                        "the proprietary driver.\x1B[0m\n");
+                        }
+                        fclose(f);
+                        free(line);
+                }
+        }
 }
 
 void run_as_ipc_client(char *command, char *socket_path) {