unimore/kernel-hacking-2024-linux-steffo
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drm/nouveau: default to 8bpc for non-LVDS panels if EDID isn't useful

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A few reports of bad behaviour since the autodetection defaulted to 6bpc,
lets fix this.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ben Skeggs 2012-03-24 16:26:13 +10:00 committed by Dave Airlie
parent c61205b24b
commit c8435362f2
1 changed files with 6 additions and 3 deletions
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9
drivers/gpu/drm/nouveau/nouveau_connector.c
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@ -654,10 +654,13 @@ nouveau_connector_detect_depth(struct drm_connector *connector)
if (nv_connector->edid && connector->display_info.bpc)
return;
/* if not, we're out of options unless we're LVDS, default to 6bpc */
connector->display_info.bpc = 6;
if (nv_encoder->dcb->type != OUTPUT_LVDS)
/* if not, we're out of options unless we're LVDS, default to 8bpc */
if (nv_encoder->dcb->type != OUTPUT_LVDS) {
connector->display_info.bpc = 8;
return;
}
connector->display_info.bpc = 6;
/* LVDS: panel straps */
if (bios->fp_no_ddc) {