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

In commit bc42aab [2]

        commit bc42aab
        Author: Adam Jackson <ajax@redhat.com>
        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@users.sourceforge.net>
Cc: <dri-devel@lists.freedesktop.org>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Ian Pilcher <arequipeno@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Paul Menzel authored and Dave Airlie committed Aug 30, 2012
1 parent c1b5112 commit 6f33814
Showing 1 changed file with 3 additions and 0 deletions.
3 changes: 3 additions & 0 deletions drivers/gpu/drm/drm_edid.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -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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