[Powerdevil] [Bug 383680] New: org_kde_powerdevil 45% ram usage along with 43% kded5 crashed my computer

[iqbal]

https://bugs.kde.org/show_bug.cgi?id=383680

            Bug ID: 383680
           Summary: org_kde_powerdevil 45% ram usage along with 43% kded5
                    crashed my computer
           Product: Powerdevil
           Version: unspecified
          Platform: Manjaro
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: plasma-devel at kde.org
          Reporter: iqbal_cs98 at hotmail.com
  Target Milestone: ---

I have 16GB DDR3 type RAM memory space on my laptop (2 slots of 8GB) and a
normal installation of the latest version of Manjaro Linux 64-bit version that
comes with KDE pre-installed. I am fascinated with the DE and its features
that's why I've been using it since 3 weeks and been applying some tweaks like
Virtual Desktops, Keyboard Shortcuts, Effects, Appearances, Widgets, etc. I
hadn't even touched the Power Management settings displayed inside the
"Hardware > Power Management". 

Then I noticed something abnormal with my RAM and CPU usage, laptop fans
starting to sound loud, HTOP started to report huge amounts of RAM being used
(which is the main problem) on processes like "org_kde_powerdevil", "kded5",
"plasmashell", "kscreen_backend_launcher" (sorted by decreasing percentage of
RAM used, the most is 'powerdevil'), crashes. Even when I am not using my
computer for hours (running some background programs like qbitorrent and
cantata though), I could've noticed how this processes 'consume' the perfomance
of my computer and lead to a crash or to get extremely slow. Here are some
cases when "powerdevil" and the other processes start to "accumulate" RAM and
computer becomes slow:

 - Closing the laptop's lid (This is why I set 'Lock screen' for the 'When
laptop lid closed' option under "Hardware > Power Management", don't know if it
is OK)
 - Switching ttys (e.g. Ctrl+Alt+F6)
 - Logging out
 - Suspending
 - Laptop being used for hours without happening any of the above.

Every since I restart the laptop, RAM usage returns to normal.
Of course I had all packages updated, and I am using the LTS recommended kernel
version of Manjaro. I preferred not to use a Swap partition since it can make
my HDD slow and lead to waste.

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