https://bugs.kde.org/show_bug.cgi?id=518316
Bug ID: 518316
Summary: Extreme UI lag in animations when scanner is connected
Classification: Applications
Product: Skanlite
Version First 25.12.3
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 191130
--> https://bugs.kde.org/attachment.cgi?id=191130&action=edit
screen-capture
SUMMARY
This affects skanlite and skanpage in the same way
Menus and drop down menus look to render at a very low rate, i get maybe 3
frames of animations and it takes several seconds, opening a drop down menu,
opening mouse over options, opening the menu to access about application menu
***having a scanner connected is required to reproduce in both applications
STEPS TO REPRODUCE
1. connect scanner, in my case a old Canon PIXMA MG2500 series
2. open software
3. try to change any setting, mouse over any buttons
OBSERVED RESULT
4. observe massive lag, only affects this application window, all others are
responsive
5. no abnormal system usage observed
EXPECTED RESULT
4. opening setting menu and mousing over buttons should not have laggy
animations
SOFTWARE/OS VERSIONS
Operating System: Kubuntu 26.04
KDE Plasma Version: 6.6.3
KDE Frameworks Version: 6.24.0
Qt Version: 6.10.2
Kernel Version: 7.0.0-10-generic (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 3600 6-Core Processor
Memory: 32 GiB of RAM (31.3 GiB usable)
Graphics Processor: Intel® Arc
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7B79
System Version: 2.0
ADDITIONAL INFORMATION
$ apt-cache policy libsane*
libsane-hpaio:
Installed: 3.24.4+dfsg0-0ubuntu7
Candidate: 3.24.4+dfsg0-0ubuntu7
Version table:
*** 3.24.4+dfsg0-0ubuntu7 500
500 http://us.archive.ubuntu.com/ubuntu resolute/main amd64 Packages
100 /var/lib/dpkg/status
libsane-common:
Installed: 1.4.0-1
Candidate: 1.4.0-1
Version table:
*** 1.4.0-1 500
500 http://us.archive.ubuntu.com/ubuntu resolute/main amd64 Packages
500 http://us.archive.ubuntu.com/ubuntu resolute/main i386 Packages
100 /var/lib/dpkg/status
libsane-dev:
Installed: (none)
Candidate: 1.4.0-1
Version table:
1.4.0-1 500
500 http://us.archive.ubuntu.com/ubuntu resolute/main amd64 Packages
libsane1:
Installed: 1.4.0-1
Candidate: 1.4.0-1
Version table:
*** 1.4.0-1 500
500 http://us.archive.ubuntu.com/ubuntu resolute/main amd64 Packages
100 /var/lib/dpkg/status
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