Ubuntu – Unable to install Ubuntu 18.04 on AMD Ryzen 2500U with Radeon Vega 8 Gfx

18.04amd-graphicsamd-processoraspire

I'm trying to install Ubuntu 18.04 (18.04.1 will try tomorrow) onto Acer Aspire A315-41-R8XR. I have unpacked iso file to my flash and booted to grub successfully, but when I select "Try Ubuntu", I just get black screen and that's all. I have also tried to select "Install Ubuntu", but I get many errors:

enter image description here
Google: watchdog: BUG: soft lockup – CPU#1 stuck for 22s! [migration/1:15]

Windows 8.1 works fine, although it was already on the disk from another notebook, so, I think, it is not a power supply problem.

I've seen many such posts in the internet. It seems that people lost Ubuntu on Ryzen with Vega…

How to fix? May be use newer kernel? How to do it?

Best Answer

My solutions: In my case, i edited quiet splash to nosplash (delete the quiet) and viola! it works.

Story: Just recently installing Ubuntu 18.04 in along Win 10 (dual boot) in my HP Envy x360 13 AMD Ryzen 5, probably just the same with your Laptop. After struggling several hours trying all the solutions i found in many forums, but no luck. It seems that the solutions, depends on what error is occured when you install Ubuntu. in my cases, it said: screenshot error

Several things i've tried , but failed:

  1. add `nomodeset`
  2. add `noacpi=off`
  3. add `amdgpu.dpm=0`

btw, do not forget that, if you install your Windows in UEFI, then u must install Ubuntu in UEFI mode too (cmiiw). UEFI - UEFI, Legacy - Legacy.

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