Created attachment 181415 [details] brightness screen with minimum brightness applied SUMMARY When activating HDR on a display, I tried calibrating the HDR brightness but regardless of where the slider is, I only see a white box, no logo. STEPS TO REPRODUCE 1. activate HDR 2. chose "Calibrate HDR Brightness" 3. OBSERVED RESULT The logo screen is white regardless of the brightness setting EXPECTED RESULT The brightness changes SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.3.90 KDE Frameworks Version: 6.14.0 Qt Version: 6.9.0 Kernel Version: 6.12.28-1-lts (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor Memory: 32 GiB of RAM (31.2 GiB usable) Graphics Processor: NVIDIA GeForce RTX 2070 SUPER Manufacturer: Gigabyte Technology Co., Ltd. Product Name: B550 VISION D System Version: -CF ADDITIONAL INFORMATION
Did you press apply after checking enable HDR box? For me it works only if i click apply. Only checking box sets maximum brightness but hdr is not enabled, so kde logo is not visible in calibration menu. I tried on two hdr screens. Operating System: Arch Linux KDE Plasma Version: 6.3.90 KDE Frameworks Version: 6.14.0 Qt Version: 6.9.0 Kernel Version: 6.14.6-zen1-1-zen (64-bit) Graphics Platform: Wayland Processors: 16 × AMD Ryzen 7 5800X 8-Core Processor Memory: 64 GiB of RAM (62.7 GiB usable) Graphics Processor: AMD Radeon RX 7900 XT Manufacturer: Gigabyte Technology Co., Ltd. Product Name: X570S AORUS ELITE AX System Version: -CF
The display itself reports HDR, so yes, it is enabled. Also, if HDR is not checked in the settings, the calibration menu vanishes.
*** This bug has been marked as a duplicate of bug 504347 ***