diff --git a/xf86drm.c b/xf86drm.c
index 93e3433..b7d5865 100644
--- a/xf86drm.c
+++ b/xf86drm.c
@@ -480,6 +480,11 @@ drm_public int drmAvailable(void)
     int           fd;
 
     if ((fd = drmOpenMinor(0, 1, DRM_NODE_PRIMARY)) < 0) {
+#ifdef __linux__
+        /* Try proc for backward Linux compatibility */
+        if (!access("/proc/dri/0", R_OK))
+            return 1;
+#endif
         return 0;
     }
 
@@ -652,6 +657,38 @@ static int drmOpenByName(const char *name, int type)
         }
     }
 
+#ifdef __linux__
+    /* Backward-compatibility /proc support */
+    for (i = 0; i < 8; i++) {
+        char proc_name[64], buf[512];
+        char *driver, *pt, *devstring;
+        int  retcode;
+
+        sprintf(proc_name, "/proc/dri/%d/name", i);
+        if ((fd = open(proc_name, 0, 0)) >= 0) {
+            retcode = read(fd, buf, sizeof(buf)-1);
+            close(fd);
+            if (retcode) {
+                buf[retcode-1] = '\0';
+                for (driver = pt = buf; *pt && *pt != ' '; ++pt)
+                    ;
+                if (*pt) { /* Device is next */
+                    *pt = '\0';
+                    if (!strcmp(driver, name)) { /* Match */
+                        for (devstring = ++pt; *pt && *pt != ' '; ++pt)
+                            ;
+                        if (*pt) { /* Found busid */
+                            return drmOpenByBusid(++pt, type);
+                        } else { /* No busid */
+                            return drmOpenDevice(strtol(devstring, NULL, 0),i, type);
+                        }
+                    }
+                }
+            }
+        }
+    }
+#endif
+
     return -1;
 }
 
diff --git a/xf86drm.h b/xf86drm.h
index e2d1736..3f52cd8 100644
--- a/xf86drm.h
+++ b/xf86drm.h
@@ -74,7 +74,7 @@ extern "C" {
 /* Default /dev/dri directory permissions 0755 */
 #define DRM_DEV_DIRMODE	 	\
 	(S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH)
-#define DRM_DEV_MODE	 (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
+#define DRM_DEV_MODE	 (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP)
 
 #ifdef __OpenBSD__
 #define DRM_DIR_NAME  "/dev"