On Wed, 2013-09-18 at 09:03 +0800, Aaron Lu wrote: > On 09/17/2013 09:34 PM, Igor Gnatenko wrote: > > On Tue, 2013-09-17 at 17:23 +0800, Aaron Lu wrote: > >> v1 has the subject of "Rework ACPI video driver" and is posted here: > >> http://lkml.org/lkml/2013/9/9/74 > >> Since the objective is really to fix Win8 backlight issues, I changed > >> the subject in this version, sorry about that. > >> > >> This patchset has three patches, the first introduced a new API named > >> backlight_device_registered in backlight layer that can be used for > >> backlight interface provider module to check if a specific type backlight > >> interface has been registered, see changelog for patch 1/3 for details. > >> Then patch 2/3 does the cleanup to sepeate the backlight control and > >> event delivery functionality in the ACPI video module and patch 3/3 > >> solves some Win8 backlight control problems by avoiding register ACPI > >> video's backlight interface if: > >> 1 Kernel cmdline option acpi_backlight=video is not given; > >> 2 This is a Win8 system; > >> 3 Native backlight control interface exists. > >> > >> Technically, patch 2/3 is not required to fix the issue here. So if you > >> think it is not necessary, I can remove it from the series. > >> > >> Apply on top of v3.12-rc1. > >> > >> Aaron Lu (3): > >> backlight: introduce backlight_device_registered > >> ACPI / video: seperate backlight control and event interface > >> ACPI / video: Do not register backlight if win8 and native interface > >> exists > >> > >> drivers/acpi/internal.h | 5 +- > >> drivers/acpi/video.c | 442 ++++++++++++++++++++---------------- > >> drivers/acpi/video_detect.c | 14 +- > >> drivers/video/backlight/backlight.c | 31 +++ > >> include/acpi/video.h | 2 + > >> include/linux/backlight.h | 4 + > >> 6 files changed, 300 insertions(+), 198 deletions(-) > >> > > > > Aaron, how about fix indicator on ThinkPads ? > > Can you please describe the problem in detail, is it that when you > adjust brightness level through hotkey, there is no GUI indication? > Thanks. > > -Aaron Yes. On my ThinkPad X230 I pressing backlight hotkeys. Actually brightnes changing, but have no indicator in GUI. -- Igor Gnatenko Fedora release 20 (Heisenbug) Linux 3.11.1-300.fc20.x86_64 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
