I could read on the internet, that sony is using an unconventional way for backlight support, it is using directly the nvidia chip to do so... I hope this can help...
-- backlight not appearing in sysfs nor laptop_panel in lshal for sony vaio fz https://bugs.launchpad.net/bugs/377353 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-180 in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
