On mar, 2008-08-05 at 21:44 +0200, Yves-Alexis Perez wrote: > On mar, 2008-08-05 at 19:37 +0100, Matthew Garrett wrote: > > This adds the support necessary for allowing ACPI backlight control > > to > > work on some newer Intel-based graphics systems. Tested on Thinkpad > > T61 > > and HP 2510p hardware. > > Ok, I managed to apply it against drm-2.6/drm-next but it won't apply > against linux-acpi-2.6/test and I'm not sure how hard it is to cherry > pick the needed stuff from drm to acpi. > > I'll try to build the drm-2.6/drm-next + patch but I guess it won't be > enough to test brightness keys? Ok, I checked out drm-2.6/drm-next, created a local branch drm-next and applied OpRegion. Then I checked out linux-acpi-2.6/test, created a local branched, and merged then my local drm-next into it. Built fine, rebooted into single user (without using acpi_backlight=). In single user, brightness keys still don't work. In booted into X (with hal, powersaved, dbus etc. running), and then, tada, brightness keys work. There is a 750ms (I guess) delay, and I don't know who is really responsible, I guess X is. (and thus I guess the opregion is the one needed, and X manages the brightness. If the kernel was, it would be working even in single user) Hope that can help understand the issues. Feel free to ask more info. Cheers, -- Yves-Alexis
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