@Kamal,
It seems that putting the 'old' patch that included ivy bridge fixes the XPS 13 Full-HD models again. Recent kernels (3.8.0-22 and up) with the FHD XPS 13 are not working anymore with regard to backlight controls.
By 'old' patch, I mean:
https://bugzilla.kernel.org/attachment.cgi?id=97751
@Kamal,
It seems that putting the 'old' patch that included ivy bridge fixes the XPS 13 Full-HD models again. Recent kernels (3.8.0-22 and up) with the FHD XPS 13 are not working anymore with regard to backlight controls.
By 'old' patch, I mean:
https:/ /bugzilla. kernel. org/attachment. cgi?id= 97751