Re: i915 backlight

From: Borislav Petkov
Date: Fri Aug 02 2013 - 04:16:38 EST

On Fri, Aug 02, 2013 at 02:00:42PM +0800, Aaron Lu wrote:
> Assume you have specified to use intel_backlight in xorg.conf

Right, I have:

Section "Device"
Option "Backlight" "intel_backlight"
Identifier "Card0"
Driver "intel"
BusID "PCI:0:2:0"

in there currently.

> does booting with video.brightness_switch_enabled=0 help?


Kernel command line is like this:

[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.11.0-rc3+ root=/dev/sdb2 ro root=/dev/sdb2 ignore_loglevel log_buf_len=10M resume=/dev/sdb1 acpi_backlight=vendor video.brightness_switch_enabled=0 i915.i915_enable_rc6=4 i915.i915_enable_fbc=1 i915.lvds_downclock=1 i915.powersave=1

and acpi_backlight=vendor doesn't make any difference. It still works
over sysfs though.



Sent from a fat crate under my desk. Formatting is fine.
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