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drm/i915: blacklist Acer AspireOne lid status 

It reports closed when open, leading to "no outputs found" at startup
unless a VGA cable is plugged in.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Jesse Barnes 2009-09-17 15:45:26 -07:00
parent 1a133e0c9d
commit 7121413f2a
1 changed files with 13 additions and 1 deletions
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14
drivers/gpu/drm/i915/intel_lvds.c
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@ -591,6 +591,18 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
I915_WRITE(PFIT_CONTROL, lvds_priv->pfit_control);
}
/* Some lid devices report incorrect lid status, assume they're connected */
static const struct dmi_system_id bad_lid_status[] = {
{
.ident = "Aspire One",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire one"),
},
},
{ }
};
/**
* Detect the LVDS connection.
*
@ -602,7 +614,7 @@ static enum drm_connector_status intel_lvds_detect(struct drm_connector *connect
{
enum drm_connector_status status = connector_status_connected;
if (!acpi_lid_open())
if (!acpi_lid_open() && !dmi_check_system(bad_lid_status))
status = connector_status_disconnected;
return status;