19.04 live qa-test: after suspend asked for username/passwd twice before being allowed to use system again

[Chris Guiver]

Ubuntu-Studio 19.04 QA-Test x86_64

As test of general operation of system, I suspended the 'live' system & waited
On waking (using keyboard - ESC key) it'd ask for my username & password.
I enter Ubuntu-Studio (& null-passwd) & it appears to be accepted as I briefly see my workspace as it was, then I return to the greeter/unlock screen and asked for me username/password again...

On second entry of username/password I can use the system normally.

I'd expect it to only require me to enter username/password once, not twice.
(this process was repeated with same results; requiring two sets of username/password before system was usable)

Note: this is a LIVE QA-TEST only, and this issue would only be a problem if it occurred on installed systems. As such it's importance is minimal-none, but if it also occurs on installed...

ProblemType: Bug
DistroRelease: Ubuntu 19.04
Package: light-locker 1.8.0-1ubuntu1
ProcVersionSignature: Ubuntu 5.0.0-7.8-lowlatency 5.0.0
Uname: Linux 5.0.0-7-lowlatency x86_64
ApportVersion: 2.20.10-0ubuntu23
Architecture: amd64
CasperVersion: 1.402
CurrentDesktop: XFCE
Date: Sun Mar 24 12:51:24 2019
LiveMediaBuild: Ubuntu-Studio 19.04 "Disco Dingo" - Alpha amd64 (20190321)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: light-locker
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1821519

[Theo Linkspfeifer (lastonestanding)]

The output of lshw mentions the GPU driver "nouveau" -> bug 1631715.

[Chris Guiver (guiverc)]

ran another QA-test of same ISO on dell [optiplex] 755 (c2d-e6850, 5gb, amd/ati radeon rv516/x1300/x1550)
i suspended system twice; it resumed as expected. I could not re-create it (using 'radeon' driver which fits @Theo's notation too)