Hi, > Thus far our assumption always was that the acpi backlight works better > than the intel native backlight. So everything only uses the intel > backlight if there's no other backlight driver by default. > > So if I should merge this as a general solution for Windows 8 machines not > working properly, we first need to figure out what windows does on these > machines and either disable the acpi backlight or adapt it. I fully agree to that. Making acpi_video control usable is preferable over using intel_backlight. As I lack the detail knowledge about the ACPI video stuff, I'd be great of one (or some) of you guys could look at the mentioned bug report ([1]) and comment on what the problem might be. I have added the basic needed information already and would be happy to provide any needed debugging info. > Adding more kernel options is not a viable solution for the backlight mess > imo. Actually I'm fine with hardcoding the percentage as well ;) I just figured it might make sense to make it controllable for special-case uses, while still making intel_backlight usable for the 'normal' use case. Regards, Danny [1] https://bugzilla.kernel.org/show_bug.cgi?id=55071
