Brightness fix on System 76 Oryx Pro

I recently received the System 76 Oryx Pro laptop – June 2018 – and this thing is a beast. If you want more portable go with something else. I decided to get it preinstalled with Pop! OS to see how well it integrated with the hardware. By default most things worked and I really didn’t spend much time configuring or fixing things beyond setting it up for me and my workflow. I did install Gnome Tweaks to alter a couple of things but for the most part the OS is unchanged.

To the problem. Out of the box there was no ability to control brightness on the laptop monitor. I do not use external monitors so I do not know if this well fix anything related to that. To fix that I simply flashed the BIOs and it magically appeared.

The second problem was after putting the laptop to sleep/suspend (c;losing the lid) the brightness controls would stop working until it was rebooted. Irritating! Here’s the fix:

1. Verify the Nvidia driver is installed and in use.
2. Update firmware, if screen brightness slider missing and keyboard keys are not working.
3. Edit the /etc/default/grub file from the terminal.
a. sudo nano /etc/default/grub
b. Change GRUB_CMDLINE_LINUX_DEFAULT from “quiet splash” to “quiet splash acpi_osi=Linux”
c. sudo update-grub
d. reboot

~ by mohawke on July 8, 2018.