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I have a new ThinkPad E15 Gen 3 link to Lenovo's website that I purchased less than a month ago. I installed Ubuntu 18.04 on it and the installation went smoothly. However, when I tried to change the brightness, it doesn't work. I turn on the PC from suspend, and the display doesn't work. After reading online it seems that it might be a display driver issue. However, there is no discrete GPU just an integrated one.

Things that I tried:

  1. Changing display manager to lightdm from gdm
  2. Adding nomodeset=0 to grub and running sudo update-grub and rebooting.
  3. Checking Additional Drivers in the Software app.
  4. Adding oibaf using ppa:repository and checking if display drivers are installed that way.
  5. Checked if I could install the drivers using ubuntu-drivers and the autoinstall option that comes with that package.
  6. Also followed the accepted answer here which nearly crashed my PC.
  7. Re-installing Ubuntu 18.04.

I would really appreciate some help with this problem. My laptop is crucial to my research work and unfortunately over the course of 3 days I've been able to perform little to none of it because of this issue. The stress is really getting to me and I've become super unproductive without my machine. I purchased a ThinkPad because I thought Linux would run right out of the box.

I'd appreciate any help and would be more than willing to run any commands/dump logs etc, if that would help with debugging.

Thanks in advance!

commanderScraps
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