On Mon, 16 Feb 2015 15:45:46 -0800 Adrian Chadd <adr...@freebsd.org> wrote:
> On 16 February 2015 at 14:40, Ian FREISLICH <i...@capeaugusta.com> > wrote: > > Ian FREISLICH wrote: > >> Adrian Chadd wrote: > >> > Hi, > >> > > >> > >> > There's a "invert backlight" option in i915, try setting it to 1? > >> > >> This is pretty much all I could find (unless I was looking in the > >> wrong place). It makes no difference. The backlight appears to > >> be disabled. > > > > Adrian, do you have any idea how to fix the backlight for my laptop? > > I ended up reversing out your change r277959 in my local copy to > > make the backlight work again here. > > Hi, > > I don't, no. I haven't dug further into the i915 backlight control > code because, well, a lot of changed in that update. The backlight > code was in a lot of flux during the period of time kib chose to fast > forward, so it's not unsurprising that it broke for some. > > I think for now we'll need a quirk that can be added for each laptop > we find with that particular behaviour. The real solution is to > continue sliding i915 forward in time. > In the meantime this workaround might be useful (not sure if it works while the driver is loaded): https://github.com/grembo/intel_backlight_fbsd -- Michael Gmelin _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
