User-Agent:       Mozilla/5.0 (X11; Linux x86_64; rv:124.0) Gecko/20100101
Firefox/124.0
Build Identifier: 

Booting the system ends in an unresponsive login screen. The cursor in the
password form does not blink. Interaction with the login screen (mouse clicks,
keyboard input) is not possible.

Logs contain a coredump for process sddm-greeter-qt6.

When booting with kernel options "radeon.si_support=0 amdgpu.si_support=1",
sddm-greeter-qt6 works as expected.

Reproducible: Always

Steps to Reproduce:
1.boot tumbleweed system with sddm display manager
2.wait until login screen is displayed
Actual Results:  
login screen is unresponsive, graphical login is not possible

Expected Results:  
login screen accepts password and allows login

Note that the following data has been collected after switching to driver
"amdgpu", hence this is the data of the working system. The actual crash
happens when using driver "radeon".

System:
  Kernel: 6.8.1-1-default arch: x86_64 bits: 64 compiler: gcc v: 13.2.1
    clocksource: tsc avail: hpet,acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.8.1-1-default
    root=UUID=eb89bf1c-81e1-4f4e-a027-804d34714974 quiet splash=silent
    resume=/dev/sda5 splash=silent quiet showopts radeon.cik_support=0
    amdgpu.cik_support=1 radeon.si_support=0 amdgpu.si_support=1
  Desktop: KDE Plasma v: 6.0.3 tk: Qt v: N/A info: frameworks v: 6.0.0
    wm: kwin_wayland with: krunner tools: avail: xlock,xscreensaver vt: 3
    dm: SDDM Distro: openSUSE Tumbleweed 20240329
Graphics:
  Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics
    vendor: Gigabyte driver: i915 v: kernel arch: Gen-7.5 process: Intel 22nm
    built: 2013 ports: active: none empty: HDMI-A-1,HDMI-A-2,VGA-1
    bus-ID: 00:02.0 chip-ID: 8086:0412 class-ID: 0300
  Device-2: AMD Tahiti PRO [Radeon HD 7950/8950 OEM / R9 280]
    vendor: PC Partner / Sapphire driver: amdgpu v: kernel alternate: radeon
    arch: GCN-1 code: Southern Islands process: TSMC 28nm built: 2011-20 pcie:
    gen: 3 speed: 8 GT/s lanes: 16 ports: active: DP-1
    empty: DVI-D-1,DVI-I-1,HDMI-A-3 bus-ID: 01:00.0 chip-ID: 1002:679a
    class-ID: 0300 temp: 58.0 C
  Display: wayland server: X.org v: 1.21.1.11 with: Xwayland v: 23.2.4
    compositor: kwin_wayland driver: X: loaded: amdgpu,intel
    unloaded: fbdev,modesetting,vesa dri: radeonsi,crocus gpu: i915,amdgpu
    display-ID: 0
  Monitor-1: DP-1 res: 3072x1728 size: N/A modes: N/A