diff options
| author | Adam Jackson <ajax@redhat.com> | 2012-05-23 16:26:54 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 08:51:06 -0800 |
| commit | fd5f25462460a68f73ff8f90ac08535b01830d9a (patch) | |
| tree | 4f243ca5967d2476759a6b01096d5cc904aadcd5 /drivers | |
| parent | 7d609c8d07b74c0a5ef7b903a9ae918d73a9a039 (diff) | |
drm/edid/quirks: ViewSonic VA2026w
commit bc42aabc6a01b92b0f961d65671564e0e1cd7592 upstream.
Entirely new class of fail for this one. The detailed timings are for
normal CVT but the monitor really wanted CVT-R.
Bugzilla: http://bugzilla.redhat/com/516471
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_edid.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 6e38325d04a6..9d9835a4fee1 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -66,6 +66,8 @@ #define EDID_QUIRK_FIRST_DETAILED_PREFERRED (1 << 5) /* use +hsync +vsync for detailed mode */ #define EDID_QUIRK_DETAILED_SYNC_PP (1 << 6) +/* Force reduced-blanking timings for detailed modes */ +#define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7) struct detailed_mode_closure { struct drm_connector *connector; @@ -120,6 +122,9 @@ static struct edid_quirk { /* Samsung SyncMaster 22[5-6]BW */ { "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 }, { "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 }, + + /* ViewSonic VA2026w */ + { "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING }, }; /*** DDC fetch and block validation ***/ @@ -852,12 +857,19 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, "Wrong Hsync/Vsync pulse width\n"); return NULL; } + + if (quirks & EDID_QUIRK_FORCE_REDUCED_BLANKING) { + mode = drm_cvt_mode(dev, hactive, vactive, 60, true, false, false); + if (!mode) + return NULL; + + goto set_size; + } + mode = drm_mode_create(dev); if (!mode) return NULL; - mode->type = DRM_MODE_TYPE_DRIVER; - if (quirks & EDID_QUIRK_135_CLOCK_TOO_HIGH) timing->pixel_clock = cpu_to_le16(1088); @@ -881,8 +893,6 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, drm_mode_do_interlace_quirk(mode, pt); - drm_mode_set_name(mode); - if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) { pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE; } @@ -892,6 +902,7 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ? DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC; +set_size: mode->width_mm = pt->width_mm_lo | (pt->width_height_mm_hi & 0xf0) << 4; mode->height_mm = pt->height_mm_lo | (pt->width_height_mm_hi & 0xf) << 8; @@ -905,6 +916,9 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev, mode->height_mm = edid->height_cm * 10; } + mode->type = DRM_MODE_TYPE_DRIVER; + drm_mode_set_name(mode); + return mode; } |