Ubuntu 20.04 LTS flickering screen

Question

I just installed a fresh Ubuntu 20.04 on my Lenovo Z580 laptop and it’s dual boot with Windows 10.

Windows 10 runs fine, but whenever I launch Ubuntu, my PC screen starts flashing continuously. The flashing screen starts from the GRUB screen and continues to when I login into Ubuntu.

I searched and tested many different solutions but nothing changed. Here are some of the solutions I tried:

• Changing NVIDIA (Performance mode) into NVIDIA On-Demand (nvidia x-server config).

• Changing NVIDIA (performance mode) into Intel (Power Saving mode).

• Setting nomodeset in GRUB config.

• Using proprietary NVIDIA drivers.

• Reinstalling the drivers from main server.

• Changing GRUB config to:

  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash drm.debug=0x1e log_buf_len=4M"
  

• ...

Can anyone help me on this problem?

Here are some links which didn't give me any good news:

• Ubuntu 20.04 LTS Screen Refresh / Flickering Issue
• Ubuntu screen flickering
• Whenever I launch Ubuntu my screen of PC starts flashing continuously
• https://discourse.ubuntubudgie.org/t/screen-glitching-problem-with-20-04/3661

Answer 1

Finally solved by down-grading the ubuntu kernel