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The last AMD laptop I bought froze randomly every few hours on Ubuntu, and there is no way to turn on my keyboard backlight on my Thinkpad T480 on Ubuntu. I gav
by grumpopotamus 6y ago
The last AMD laptop I bought froze randomly every few hours on Ubuntu, and there is no way to turn on my keyboard backlight on my Thinkpad T480 on Ubuntu. I gave up trying to fix these problems a while ago, and last time I checked nobody had found a fix for either issue for my specific laptop models. I'd be very hesitant to buy AMD or Lenovo before I had strong evidence that there are no serious issues on Linux.
- sam_lowry_ 6y agoSounds like the famous AMD Ryzen soft lockup bug. Adding something like processor.mac_cstate=5 rcu_nocbs=0-7 to the boot options solved it for me. See for instance this: https://community.amd.com/thread/225795 https://community.amd.com/thread/225795
- martin8412 6y agoGranted I had to do a firmware update(supported through Linux), but I have Linux running on a X395 without any problems.