# SDL: Treat empty SDL\_VIDEODRIVER var to check all video drivers.

**URL:** <https://discourse.libsdl.org/t/sdl-treat-empty-sdl-videodriver-var-to-check-all-video-drivers/32697>\
**Category:** SDL Commits\
**Created:** [August 30, 2021, 2:02am UTC](https://discourse.libsdl.org/t/sdl-treat-empty-sdl-videodriver-var-to-check-all-video-drivers/32697 "2021-08-30T02:02:07Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![SDLPushPostBot](https://discourse.libsdl.org/user_avatar/discourse.libsdl.org/sdlpushpostbot/32/4370_2.png) [@SDLPushPostBot](https://discourse.libsdl.org/u/SDLPushPostBot)\
**Post date:** [August 30, 2021, 2:02am UTC](https://discourse.libsdl.org/t/sdl-treat-empty-sdl-videodriver-var-to-check-all-video-drivers/32697/1 "2021-08-30T02:02:08Z")

</div>

> <https://github.com/libsdl-org/SDL/commit/9fae8f7088efab699fcec3e8086db5f40c899314>

```diff
From 9fae8f7088efab699fcec3e8086db5f40c899314 Mon Sep 17 00:00:00 2001
From: Lee Salzman <[EMAIL REDACTED]>
Date: Sun, 29 Aug 2021 15:33:58 -0400
Subject: [PATCH] Treat empty SDL_VIDEODRIVER var to check all video drivers.

---
 src/video/SDL_video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
index 160190da9d..07c7aa5eac 100644
--- a/src/video/SDL_video.c
+++ b/src/video/SDL_video.c
@@ -489,7 +489,7 @@ SDL_VideoInit(const char *driver_name)
     if (driver_name == NULL) {
         driver_name = SDL_getenv("SDL_VIDEODRIVER");
     }
- if (driver_name != NULL) {
+ if (driver_name != NULL && *driver_name != 0) {
         const char *driver_attempt = driver_name;
         while(driver_attempt != NULL && *driver_attempt != 0 && video == NULL) {
             const char* driver_attempt_end = SDL_strchr(driver_attempt, ',');

```