http://bugzilla.kernel.org/show_bug.cgi?id=9614


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------- Comment #26 from [EMAIL PROTECTED]  2008-05-04 09:45 -------
I have a thinkpad T61 with the same kind of bugs.

Using 2.6.25.1, I have two acpi_video* in /sys/class/backlight.

Brightness keys manage to change both acpi_videoX/actual_brightness, but
acpi_videoX/brightness doesn't change.

echo XX > acpi_video1/brightness changes acpi_video1/brightness and
acpi_video1/actual_brightness _and_ the effective LCD brightness

echo XX > acpi_video0/brightness changes acpi_video0/brightness and
acpi_video0/actual_brightness, but LCD brightness doesn't change.

I'm on a T61 8897 CTO with integrated graphics, with bios 2.17 (the latest
atm). If you want dmesg, lspci, acpidump stuff, please ask.

Cheers,


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