diff options
author | Adam Jackson <ajax@redhat.com> | 2009-06-03 20:20:34 -0400 |
---|---|---|
committer | Dave Airlie <airlied@redhat.com> | 2009-06-03 20:20:34 -0400 |
commit | fc43896630a421321a19d7970bac27ac94e9d162 (patch) | |
tree | 26128411aeb6fb307ce899b3efec3779196b247d | |
parent | 6c51d1cfa0a370b48a157163340190cf5fd2346b (diff) |
drm: ignore EDID with really tiny modes.
Some EDIDs lie and report tiny modes that aren't possible. Ignore
these modes.
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
-rw-r--r-- | drivers/gpu/drm/drm_edid.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index ca9c61656714..6f6b26479d82 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c | |||
@@ -289,6 +289,11 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, | |||
289 | struct drm_display_mode *mode; | 289 | struct drm_display_mode *mode; |
290 | struct detailed_pixel_timing *pt = &timing->data.pixel_data; | 290 | struct detailed_pixel_timing *pt = &timing->data.pixel_data; |
291 | 291 | ||
292 | /* ignore tiny modes */ | ||
293 | if (((pt->hactive_hi << 8) | pt->hactive_lo) < 64 || | ||
294 | ((pt->vactive_hi << 8) | pt->hactive_lo) < 64) | ||
295 | return NULL; | ||
296 | |||
292 | if (pt->stereo) { | 297 | if (pt->stereo) { |
293 | printk(KERN_WARNING "stereo mode not supported\n"); | 298 | printk(KERN_WARNING "stereo mode not supported\n"); |
294 | return NULL; | 299 | return NULL; |