Previous to Juno, my retina 13 got some liquid spilled. I cleaned it then the service said they didn't know how to fix it - it boots only in safe mode on osx. So I installed Juno , (I manage to enter GUI via grub cmdline option nomodeset. If I remove it - I have graphics artefacts and it's unusable) inxi says: Device-1: Intel 3rd Gen Core processor Graphics driver: N/A Display: x11 server: X.Org 1.19.6 driver: fbdev,intel unloaded: modesetting,vesa resolution: 2560x1600~93Hz OpenGL: renderer: llvmpipe (LLVM 8.0 256 bits) v: 3.3 Mesa 19.0.2 So I guess it's running a non-accelerated framebuffer driver, I have only 1 resolution (2560x1600), pixel doubled (1280x800) or not, no brightness control. Fullhd works acceptably well although high cpu on Chrome. I tried adding some other resolutions via cvt and xrandr add mode/new mode, also xorg.conf, but once I switch to them nothing happens. Here is the output of xrandr: xrandr: Failed to get size of gamma for output default Screen 0: minimum 2560 x 1600, current 2560 x 1600, maximum 2560 x 1600 default connected primary 2560x1600+0+0 0mm x 0mm 2560x1600 93.00* if I enable modesetting driver it's unusable, lots of artefacts and it crashes - I enabled it via xorg.conf file by specifying driver "modesetting" - system is up to date. I also installed the intel driver via Device Driver Manager app from Linux Mint but it appears X crashes (not sure here) The question is how can I add some other resolution and go about the brightness control via fbdev driver or other options to make the best use of this laptop (as I can't use it anymore under OSX apparently) Thanks in advance and nice distro.