Bug 490016

SUMMARY
When display settings are set to a resolution of 5120 x 1440 @ 120Hz, and HDR is enabled, after logging out or shutting down the computer, upon logging in, a black screen is presented. It plays the login chime and a cursor is present, but nothing else.

This does not happen when these options are selected seperately, only when together. So 5120 x 1440 without HDR works fine, and any other resolution with HDR enabled also works fine.

It should be noted that under 'Display Configuration',  when selecting these options simultaniously, they do not apply. I need to first set one, apply, and then set the other, and apply. System will work afterwards, until logging out and logging back in.

STEPS TO REPRODUCE
1.  Set display resolution to 5120x1440;
2.  Enable HDR;
3.  Log out;
4.  Log in;

OBSERVED RESULT
Black screen after login;

EXPECTED RESULT
Desktop is displayed;

SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.1.1
KDE Frameworks Version: 6.3.0
Qt Version:  6.7.2

ADDITIONAL INFORMATION
I am using the Wayland compositor, with proprietary Nvidia drivers 555.58.02