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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-02-23 15:36:42 -0800 |
|---|---|---|
| committer | Dave Airlie <airlied@linux.ie> | 2009-02-25 14:10:42 +1000 |
| commit | 37df96736bfe6f5fd9a141d62946e1083d73e712 (patch) | |
| tree | 6ea4a8d65929f0ca71379e556a2703577f435a8d /drivers/gpu | |
| parent | 7c04d1d97a8d918b7ae2ef478229862b71a65f06 (diff) | |
| download | linux-3.10-37df96736bfe6f5fd9a141d62946e1083d73e712.tar.gz linux-3.10-37df96736bfe6f5fd9a141d62946e1083d73e712.tar.bz2 linux-3.10-37df96736bfe6f5fd9a141d62946e1083d73e712.zip | |
drm/i915: handle bogus VBT panel timing
We've seen cases in the wild where the VBT sync data is wrong, so add
some code to fix it up in that case, taking care to make sure that the
total is greater than the sync end.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 65be30dccc7..fc28e2bbd54 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -111,6 +111,12 @@ parse_panel_data(struct drm_i915_private *dev_priv, struct bdb_header *bdb) panel_fixed_mode->clock = dvo_timing->clock * 10; panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED; + /* Some VBTs have bogus h/vtotal values */ + if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal) + panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1; + if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal) + panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1; + drm_mode_set_name(panel_fixed_mode); dev_priv->vbt_mode = panel_fixed_mode; |