diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2009-12-21 12:16:52 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2010-01-11 09:06:32 +1000 |
| commit | 75c722d7ea70b791d179ec900e7c88bd6d5fd71e (patch) | |
| tree | d0a4a1e1f1261c7e37687b9e83bbd475f78793f9 | |
| parent | 8dea4a1935fabbc5fcea6016d6670e6bc06de198 (diff) | |
drm/nv50: ignore vbios table's claim to the contrary if EDID says >8bpc
Should fix dim panel issues reported on Dell M6400/M6500.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_display.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index a9263d92a23..90f0bf59fbc 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -690,9 +690,21 @@ nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcbent, int pxclk) { struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_connector *nv_connector = NULL; + struct drm_encoder *encoder; struct nvbios *bios = &dev_priv->VBIOS; uint32_t mc, script = 0, or; + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder); + + if (nv_encoder->dcb != dcbent) + continue; + + nv_connector = nouveau_encoder_connector_get(nv_encoder); + break; + } + or = ffs(dcbent->or) - 1; mc = nv50_display_mode_ctrl(dev, dcbent->type != OUTPUT_ANALOG, or); switch (dcbent->type) { @@ -711,6 +723,11 @@ nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcbent, } else if (bios->fp.strapless_is_24bit & 1) script |= 0x0200; + + if (nv_connector && nv_connector->edid && + (nv_connector->edid->revision >= 4) && + (nv_connector->edid->input & 0x70) >= 0x20) + script |= 0x0200; } if (nouveau_uscript_lvds >= 0) { |