Public bug reported:
Hello
Locking the screen causes the system to 'reset' - it does not restart as
if you were to hit the restart button on the PC case, as it is not going
back to the BIOS and boot bleep, rather that it slowly returns to the
login screen and once you log in, you are presented with the 'first
time' view of Ubuntu.
Effectively, if I lock the screen, all of my apps and open documents are
being closed - improperly I believe, as it triggers the LibreOffice
recovery process.
This problem is not found in the dual-boot Windows 10 installation on
this same PC.
I suspect this may be tied to the video/graphics system, as it seems
that this 'reset' is more likely the longer you leave it. Usually, an
immediate lock then login won't trigger the problem, but if you leave it
for ten minutes, it almost certainly will. I cannot consistently
replicate this problem.
These are the system details:
Ubuntu 17.10
Memory: 7.8GB
Processor: AMD Althon ii x4 651K quad-core processor
Graphics: AMD Pitcairn
GNOME 3.26.2
OS: 64-bit
Disk 123.5GB
As for hardware:
It's an Athlon II 651K CPU, in an Asus F1A55MLE (F1A55-M LE ?)
Motherboard, with 2x4GB RAM sticks, and a SanDisk SSD. Notably, there's
an Asus 7850 GPU in there, and I suspect that this may be the problem -
perhaps not playing nice with the Monitor (an iiyama B2888UHSU 4K
28-inch unit, connected via DisplayPort). There's also a TP-Link USB
WiFi dongle in the back.
tl;dr - After locking the screen, the login window is slow to appear once you
move the mouse or keyboard. Once you log in, it's like you are logging in for
the first time. All the apps have closed. I suspect this is related to the
monitor-GPU combo, but I can't consistently reproduce the problem. System works
fine otherwise.
** Affects: gnome-screensaver (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1749414
Title:
Ubuntu 17.10 Lock Screen causes reset
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