I am facing a weird problem in gnome startup. Gnome startup gets stuck (before login screen) on battery BUT not when my laptop is connected to power.
I am running ubuntu 18.04 on Thinkpad T495 (AMD ryzen 3500u pro). Recently upgraded to the latest 5.3 kernel (via bionic stable ppt).
Linux ThinkPad-T495 5.3.0-26-generic #28~18.04.1-Ubuntu SMP Wed Dec 18 16:40:14 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
I was checking the journalctl logs but I am not entirely sure what sort of errors I need to focus on.
Any help on this is much appreciated!
UPDATE:
This issue persists in ubuntu 20.04 as well.
And adding grub params iommu=soft
solves this at least temporarily.
iommu=soft
fixed the issue decently.nomodeset
was messing up with the display resolution. :-( I found this post describing the implications of settingiommu=soft
. https://unix.stackexchange.com/questions/469153/what-are-the-implication-of-iommu-soft – n1r44 Apr 27 '20 at 00:16