https://bugs.kde.org/show_bug.cgi?id=469590
Bug ID: 469590
Summary: SDDM is slow and jittery most of the time, sometimes
recording doubled keystrokes
Classification: I don't know
Product: kde
Version: unspecified
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: unassigned-b...@kde.org
Reporter: zargulthewiz...@outlook.com
Target Milestone: ---
SUMMARY
When trying to log in, repeatedly SDDM has occasionally been very sluggish (1-2
FPS), and has even occasionally started recording one keystroke as multiple,
making typing a password very difficult. This has happened on all kinds of
instances where SDDM would launch, including on first boot. On at least two
occasions, clicking the password field restored normal functionality. I should
note that I do have a dual monitor setup.
STEPS TO REPRODUCE
1. Have a dual monitor setup on the same NVidia card (akmod-nvidia installed).
2. Boot without automatic login, or log out of a signed in account.
3. Move the mouse around. It may not happen every time, so you may have to try
multiple times.
OBSERVED RESULT
The mouse and all UI elements except maybe the blinking cursor rare at 1-2 FPS,
and trying to type the password may result in doubled keystrokes.
EXPECTED RESULT
No low FPS or sluggishness, and the keyboard functions normally.
SOFTWARE/OS VERSIONS
Windows: X
macOS: X
Linux/KDE Plasma: Fedora 38 spin Plasma
(available in About System)
KDE Plasma Version: 5.27.4
KDE Frameworks Version: 5.105.0
Qt Version: 5.15.9
ADDITIONAL INFORMATION
I am using an NVidia RTX 2060 SUPER with X-11.
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