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drm/i915: slow acpi_lid_open() causes flickering - V2

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acpi_lid_open() could take up to 10ms on my computer.  Some component is
calling the drm GETCONNECTOR ioctl many times in a row.  This results in
flickering (for example, when starting a video).  Fix it by assuming an
always connected lid status.

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Thomas Meyer 2010-02-02 20:09:04 +01:00 committed by Eric Anholt
parent 33c5fd121e
commit 67026e0324
1 changed files with 8 additions and 1 deletions
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9
drivers/gpu/drm/i915/intel_lvds.c
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@ -622,6 +622,13 @@ static const struct dmi_system_id bad_lid_status[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire one"),
},
},
{
.ident = "Aspire 1810T",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1810T"),
},
},
{
.ident = "PC-81005",
.matches = {
@ -643,7 +650,7 @@ static enum drm_connector_status intel_lvds_detect(struct drm_connector *connect
{
enum drm_connector_status status = connector_status_connected;
if (!acpi_lid_open() && !dmi_check_system(bad_lid_status))
if (!dmi_check_system(bad_lid_status) && !acpi_lid_open())
status = connector_status_disconnected;
return status;