On Fri, Feb 07, 2014 at 09:29:58AM +0800, Aaron Lu wrote: > On 02/03/2014 06:59 PM, Mika Westerberg wrote: > > On HP EliteBook Revolve 810 the ACPI backlight device doesn't work as > > expected. For example when resuming from system sleep, it seems to lose > > backlight settings. > > > > Forcing Intel driver fixes the problem so add this machine the ACPI > > video detect blacklist. > > For reference's purpose, can you please file a bug to kernel bugzilla > under the ACPI/Power-Video category and attach the acpidump and dmesg > there? Thanks. Done, the bug is here: https://bugzilla.kernel.org/show_bug.cgi?id=70231 I noticed that using only the acpi_video0 for tuning backlight works but if I use intel_backlight directly, on resume I get values from acpi_video0 instead. I'm not really familiar how this is supposed to work, though so please let me know if I'm missing something. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
