Managed to reproduce it:
1) switched to nvidia;
2) worked for a while with it for a while with 5.3.0-19-generic;
3) got a kernel update to 5.3.0-23-generic;
4) switched to intel;
5) reproduced the problem.
What I found is:
1) /lib/modprobe.d/blacklist-nvidia.conf gets created if you switch to
updateinitramfs used to be run previously, however, this was removed at
some point (introduced into the distro in Cosmic/18.10):
https://github.com/tseliot/nvidia-
prime/commit/7595f47b84f713dc969440e31d0e53708fddd71f
https://git.launchpad.net/~usd-import-team/ubuntu/+source/nvidia-
If anybody still has a reproducer, it would be useful to set a trace
point like this:
sudo vim /usr/bin/prime-select
# ...
import pdb
pdb.set_trace()
if profile == 'nvidia':
# Always allow enabling nvidia
# (No need to check if nvidia is
I had the same problem (the system got upgraded from 19.04 to 19.10,
nvidia-430 driver).
I noticed that nvidia drivers were loaded in the rescue mode - so they
were likely not blacklisted properly.
When I did not enter the rescue mode I had the following message displayed:
"A start job is
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-prime (Ubuntu)
Status: New => Confirmed
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