FYI, Lenovo SL510 on PCLinuxOS LXDE: no brightness. no volume and no mute keys
and I tried really hard (almost a whole night) to get it working!
The native 1366px screen resolution was blurry with strange font effects, probably due to scaling.
Finally, I installed the XFCE version of another rolling release distro without any issue, everything detected correctly out of the box.
Sorry guys that it could not be. I figured this feedback might be useful. I will keep PCLinuxOS LXDE on a desktop though.