The patch titled
i915: slow acpi_lid_open() causes flickering
has been removed from the -mm tree. Its filename was
i915-slow-acpi_lid_open-causes-flickering.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: i915: slow acpi_lid_open() causes flickering
From: Thomas Meyer <thomas@xxxxxxxx>
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.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14670
Signed-off-by: Thomas Meyer <thomas@xxxxxxxx>
Cc: Eric Anholt <eric@xxxxxxxxxx>
Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Cc: Dave Airlie <airlied@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_lvds.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff -puN drivers/gpu/drm/i915/intel_lvds.c~i915-slow-acpi_lid_open-causes-flickering drivers/gpu/drm/i915/intel_lvds.c
--- a/drivers/gpu/drm/i915/intel_lvds.c~i915-slow-acpi_lid_open-causes-flickering
+++ a/drivers/gpu/drm/i915/intel_lvds.c
@@ -632,6 +632,18 @@ static const struct dmi_system_id bad_li
{ }
};
+/* Some lid devices take a long time to report the lid status, assume they're connected*/
+static const struct dmi_system_id slow_lid_status[] = {
+ {
+ .ident = "Aspire 1810T",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1810T"),
+ },
+ },
+ { }
+};
+
/**
* Detect the LVDS connection.
*
@@ -643,7 +655,8 @@ static enum drm_connector_status intel_l
{
enum drm_connector_status status = connector_status_connected;
- if (!acpi_lid_open() && !dmi_check_system(bad_lid_status))
+ if (!dmi_check_system(slow_lid_status) && !dmi_check_system(bad_lid_status))
+ if (!acpi_lid_open())
status = connector_status_disconnected;
return status;
_
Patches currently in -mm which might be from thomas@xxxxxxxx are
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