[ 192/262] drm: Add EDID_QUIRK_FORCE_REDUCED_BLANKING for ASUS VW222S

From: Greg Kroah-Hartman
Date: Fri Sep 28 2012 - 15:03:31 EST


From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>

3.5-stable review patch. If anyone has any objections, please let me know.

------------------

From: Paul Menzel <paulepanter@xxxxxxxxxxxxxxxxxxxxx>

commit 6f33814bd4d9cfe76033a31b1c0c76c960cd8e4b upstream.

Connecting an ASUS VW222S [1] over VGA a garbled screen is shown with
vertical stripes in the top half.

In commit bc42aabc [2]

commit bc42aabc6a01b92b0f961d65671564e0e1cd7592
Author: Adam Jackson <ajax@xxxxxxxxxx>
Date: Wed May 23 16:26:54 2012 -0400

drm/edid/quirks: ViewSonic VA2026w

Adam Jackson added the quirk `EDID_QUIRK_FORCE_REDUCED_BLANKING` which
is also needed for this ASUS monitor.

All log files and output from `xrandr` is included in the referenced
Bugzilla report #17629.

Please note that this monitor only has a VGA (D-Sub) connector [1].

[1] http://www.asus.com/Display/LCD_Monitors/VW222S/
[2] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commit;h=bc42aabc6a01b92b0f961d65671564e0e1cd7592

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=17629
Signed-off-by: Paul Menzel <paulepanter@xxxxxxxxxxxxxxxxxxxxx>
Cc: <dri-devel@xxxxxxxxxxxxxxxxxxxxx>
Cc: Adam Jackson <ajax@xxxxxxxxxx>
Cc: Ian Pilcher <arequipeno@xxxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/gpu/drm/drm_edid.c | 3 +++
1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -87,6 +87,9 @@ static struct edid_quirk {
int product_id;
u32 quirks;
} edid_quirk_list[] = {
+ /* ASUS VW222S */
+ { "ACI", 0x22a2, EDID_QUIRK_FORCE_REDUCED_BLANKING },
+
/* Acer AL1706 */
{ "ACR", 44358, EDID_QUIRK_PREFER_LARGE_60 },
/* Acer F51 */


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