https://bugs.kde.org/show_bug.cgi?id=474617
Bug ID: 474617
Summary: 171% CPU Usage With Total System Block (100%
Repeatable). Gwenview Freezes Computer.
Classification: Applications
Product: gwenview
Version: 23.08.0
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: critical
Priority: NOR
Component: general
Assignee: gwenview-bugs-n...@kde.org
Reporter: kdelo...@mozej.com
Target Milestone: ---
SUMMARY
***
Why can I just enjoy my photos like everyone on a Mac or Windows?
***
Browsing (JPEG) photos with Gwenview should not FREEZE computer. THIS IS
CRITICAL. Happens regardless of the settings (options on: low resource usage
and no animiations). Gwenview will use over 100% CPU and will totally lock the
computer. Does not happen with $ sxiv -f '/xxx/xxx/sdc1/my_old_photos/'. You
can browse photos and enjoy your old photos.
***
STEPS TO REPRODUCE
1. Open Dolphin and chose one photo from your old collection. Click on it.
2. Close Dolphin
3. Press ctrl+shift+f
4. Now press right arrow repeteadly, enjoying each photo the photo (for a
second or two). Continue watching your photos while clicking right arrow.
5. GRAVE! I had my computer go crazy with 176% CPU usage and TOTAL
LOCK/FREEZE. Computer did not collected backtrace. It froze (reproducable 100%)
THIS IS NOT NORMAL BEHAVIOR. COMPUTER SHOULD NOT FREEZE WHILE SIMPLE PHOTO
BROWSING OF YOUR OLD COLLECTION! ITS REPEATABLE AND ANNOYING AS THESE. CAPITAL
LETTERS.
OBSERVED RESULT
Computer Total Freeze.
EXPECTED RESULT
Make KDE be able to normally browse photos without computer freeze. Click first
photo and enjoy next one by pressing right arrow to see the next photo. On a
normal computer (Apple, Windows,...) you press right arrow and the computer
does not go crazy with CPU and does not freeze.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux (not Manjaro)
(available in About System)
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
100% Reproducable. Click first photo then go full screen and keep pressing
right arrow... and F R E E Z E.
You can also go to setting while in full screen (ctrl+shift+f) and turn off
"thumbnails", it doesn't matter if you turn off thumbnails in full screen or
not. In both cases it freezes the computer. This is not normal behaviour. Why
can I just enjoy photos like everyone on a Mac or Windows?
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