All,
My testing indicates gdm3 3.28.0-0ubuntu1.1 fixes the incorrect password issue;
however, it creates a new issue. As such I don’t think this update should be
released.
I installed gdm3 3.28.0-0ubuntu1.1 and rebooted my system (Ubuntu 18.04
LTS). Making sure I typed the password correct I was able to login to
each account on the system. I then logged out and performed the
following steps to ensure the password issue was resolved.
For two accounts I performed the following steps three times for each.
Each time succeeded.
1. I typed a bad password and pressed enter. I did this two times. Each
time I was returned to the login screen and received a message the login didn’t
work.
2. I then typed a correct password and successfully logged in.
3. I then locked the screen and performed steps one and two and each time
it worked as it should.
4. I then logged out of the account and performed steps one and two and
each time it worked as it should.
Based on this testing I would say recovering from a bad password is fixed.
The next test I performed was to login into one account and then switch
to the other account. I was able to successfully switch to the other
account. I then tried to switch back to the first account but I was
never able to successfully switch back. I tried it at least six times
and in no case did it work. It did not matter which account I logged
into first I was never able to switch to the other then switch back. In
each case when I switched the second time the system hung and I could
not find a way to recover. I tried CTRL+ALT+F2, CTRL+ALT+F1, CTRL+ALT+F2
but there was still unable to login. I was not able to login to any
account even when being extremely careful the password was correct.
I then reinstalled gdm3 3.28.0-0ubuntu1 and tried switching between
accounts. As long as I ensure I type the password correct I can switch
between accounts multiple times without issue. If I type an incorrect
password I can do CTR+ALT+F2, CTRL+ALT+F1, CTRL+ALT+F2 to recover.
With package gdm3 3.28.0-0ubuntu1.1 the only way I was able to regain
control (after trying to switch accounts a second time) was with a
system reboot. To me, having to reboot is a catastrophic failure and
therefor this package should not be released.
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https://bugs.launchpad.net/bugs/1766137
Title:
[regression] Password accepted but login fails (blank purple screen
and mouse pointer only)
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