https://bugzilla.kernel.org/show_bug.cgi?id=51231
Zhang Rui <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |[email protected] AssignedTo|acpi_power-video@kernel-bug |[email protected] |s.osdl.org | --- Comment #3 from Zhang Rui <[email protected]> 2012-12-02 17:44:19 --- well, I guess the problem also exists in 3.3 kernel, right? it seems that this patch introduces the "regression". commit fba4e087361605d1eed63343bb08811f097c83ee Author: Igor Murzov <[email protected]> Date: Sat Oct 13 04:41:25 2012 +0400 ACPI video: Ignore errors after _DOD evaluation. There are systems where video module known to work fine regardless of broken _DOD and ignoring returned value here doesn't cause any issues later. This should fix brightness controls on some laptops. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47861 Signed-off-by: Igor Murzov <[email protected]> Reviewed-by: Sergey V <[email protected]> Signed-off-by: Zhang Rui <[email protected]> But IMO, the ACPI backlight control on your laptop is always broken, but this commit commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5 Author: Igor Murzov <[email protected]> Date: Fri Mar 30 21:32:08 2012 +0400 ACPI video: Harden video bus adding. It is always better to check return values, so add some new checks and correct existing ones. v2: Be consistent and don't mix errors from -E* and AE_* namespaces. Signed-off-by: Igor Murzov <[email protected]> Signed-off-by: Len Brown <[email protected]> happens to make your laptop stop using ACPI backlight control. :) can you please attach the dmidecode output of your laptop? so that I can backlist your laptop from ACPI Backlight control. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: DESIGN Expert tips on starting your parallel project right. http://goparallel.sourceforge.net/ _______________________________________________ acpi-bugzilla mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
