https://bugs.kde.org/show_bug.cgi?id=499089
Bug ID: 499089
Summary: PC will not wake from sleep
Classification: Plasma
Product: plasmashell
Version: 6.1.5
Platform: Kubuntu
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: Power management & brightness
Assignee: plasma-b...@kde.org
Reporter: droid...@gmail.com
Target Milestone: 1.0
SUMMARY
under power management, setting suspend option to sleep results in a hard
lockup and PC will not wake up.
STEPS TO REPRODUCE
1. go to settings > power management > suspend options > sleep
2. allow system to fall asleep with default sleep.config
3. try to wake system after suspend (via USB or power button)
OBSERVED RESULT
system does not wake or respond to anything other than a hard reset with the
power button (holding it down for 5sec)
EXPECTED RESULT
system resumes to the exact state it was in before suspend.
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 24.10
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.6.0
Qt Version: 6.6.2
Kernel Version: 6.11.0-13-generic (64-bit)
Graphics Platform: X11
Processors: 28 × Intel® Core™ i7-14700K
Memory: 62.6 GiB of RAM
Graphics Processor: AMD Radeon RX 6800
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7D27
System Version: 1.0
ADDITIONAL INFORMATION
investigating the `/etc/systemd/sleep.conf` options and testing various
settings by uncommenting lines in the file, i have discovered that the the
"freeze" state to be the root of the problem.
`cat /sys/power/state` shows the order of operations with `freeze mem disk`,
but freeze does not work on my system, only mem and disk
so setting the sleep.conf as shown avoids the "freeze" state
```
[Sleep]
AllowSuspend=yes
AllowHibernation=yes
AllowSuspendThenHibernate=yes
AllowHybridSleep=no
SuspendState=mem disk
HibernateMode=platform shutdown
MemorySleepMode=deep
HibernateDelaySec=60
#SuspendEstimationSec=60min
```
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