My laptop has a: Intel Corporation Haswell-ULT Integrated Graphics (rev 09) (prog-if 00 )
Is there a way to make GNOME use the other, by some setting in gconf maybe? Or just to rewire the hotkeys and the slider to some script? The problem is that gnome3 menu settings, and the hotkeys, both try to work around dell_backlight (the hotkeys management should be in dell_wmi module). Trying to adjust screen brightness works with intel_backlight only (by echoing values), while trying to fiddle with other makes no change, with no errors. Where the first is brought-in, I guess, by dell_laptop module, while the second comes from i915.
Under directory /sys/class/backlight I have: dell_backlight/brightness On my dell laptop (XPS 13 developer) running Fedora 21 I am in a situation similar to this, or this.
