[kde] [Bug 450980] New: KDE 5.24 breaks suspend to RAM (really badly); reverting to 5.23 resolves it

[flan_suse]

https://bugs.kde.org/show_bug.cgi?id=450980

            Bug ID: 450980
           Summary: KDE 5.24 breaks suspend to RAM (really badly);
                    reverting to 5.23 resolves it
           Product: kde
           Version: unspecified
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: windows2linux at zoho.com
  Target Milestone: ---

Starting with KDE 5.24, when I tell my laptop to suspend to RAM, the following
occurs:
* It "appears" to suspend. (Fans stop, external monitor turns off)
* But the CPU is COOKING at maximum heat, without any running fans!
* Pressing keys on my wireless keyboard or mouse does NOT wake up it (as it
always has before)
* I need to "wake up" the laptop by pressing on the actual laptop keyboard
* When it "wakes up", the entire laptop feels like it's COOKING. Apparently,
the CPU was still running, but no fans were running to keep it cooled.

With 5.23 and earlier:
* The laptop correctly suspends to RAM
* Everything stays cool (CPU is not running)
* Pressing a key on my wireless keyboard or mouse wakes up the laptop
* No issues at all, laptop feels cool

I have an external monitor attached to the laptop, which works properly.

I had to revert back to KDE 5.23, since this bug was literally FRYING my laptop
to ungodly levels of heat. (Had I not noticed earlier and reproduced it
consistently, I could have risked damaging my components.)

Was there a change done to the "power" side of things from 5.23 -> 5.24?

To reiterate: It's specifically KDE 5.24. Trying a different kernel makes no
difference.


SYSTEM INFO:
Operating System: Manjaro Linux
KDE Plasma Version: 5.24.2
KDE Frameworks Version: 5.91.0
Qt Version: 5.15.2
Kernel Version: 5.16.7-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 8 × 11th Gen Intel® Core™ i7-1165G7 @ 2.80GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics

I have a desktop PC with the same software, however, it uses a discrete GPU
(Nvidia), which does not have this issue with KDE 5.24.

What other information would be useful?

Thank you.

-- 
You are receiving this mail because:
You are the assignee for the bug.