Hey there,
When my system locks and I log in , the contrast on Chromium-Based browsers looks weirdly.
I have two monitors , one that supports ddcui and the second that has a fake dimming feature
The contrast issue on the one with ddc can’t be resolved until I reboot, while the second monitor’s contrast can be fixed by reducing the brightness a little.
I tried Firefox dolphin and they look fine while this issue is persistent on Brave , ungoogled Chromium and Vivaldi browsers.
The issue can be screenshot and seen
I tried Fedora 43 and Cachyos , both have the same problem..
``` ❯ nvidia-smi
Sat Jan 24 05:30:02 2026
±----------------------------------------------------------------------------------------+
| NVIDIA-SMI 580.126.09 Driver Version: 580.126.09 CUDA Version: 13.0 |
±----------------------------------------±-----------------------±---------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+========================+======================|
| 0 NVIDIA GeForce GTX 1070 … Off | 00000000:01:00.0 On | N/A |
| N/A 54C P0 30W / 90W | 853MiB / 8192MiB | 0% Default |
| | | N/A |
±----------------------------------------±-----------------------±---------------------+
±----------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=========================================================================================|
| 0 N/A N/A 1098 G /usr/bin/ksecretd 1MiB |
| 0 N/A N/A 1135 G /usr/bin/kwin_wayland 288MiB |
| 0 N/A N/A 1205 G /usr/bin/Xwayland 15MiB |
| 0 N/A N/A 1242 G /usr/bin/ksmserver 1MiB |
| 0 N/A N/A 1244 G /usr/bin/kded6 1MiB |
| 0 N/A N/A 1260 G /usr/bin/plasmashell 206MiB |
| 0 N/A N/A 1282 G /usr/bin/kaccess 1MiB |
| 0 N/A N/A 1287 G …it-kde-authentication-agent-1 1MiB |
| 0 N/A N/A 1454 G /usr/bin/kdeconnectd 1MiB |
| 0 N/A N/A 1560 G /usr/lib/xdg-desktop-portal-kde 1MiB |
| 0 N/A N/A 5109 G /usr/bin/konsole 1MiB |
| 0 N/A N/A 7915 G /usr/bin/konsole 1MiB |
| 0 N/A N/A 9274 G /usr/bin/kwalletd6 1MiB |
| 0 N/A N/A 10128 G /usr/lib/baloorunner 1MiB |
| 0 N/A N/A 13830 G /usr/bin/dolphin 1MiB |
| 0 N/A N/A 14752 G /usr/bin/dolphin 1MiB |
| 0 N/A N/A 16958 G …ions.brave.com/seed --restart 1MiB |
| 0 N/A N/A 17008 G …rack-uuid=3190708988185955192 108MiB |
| 0 N/A N/A 17196 G …asma-browser-integration-host 1MiB |
| 0 N/A N/A 20003 G /usr/bin/Telegram 1MiB |
| 0 N/A N/A 55089 G /usr/bin/spectacle 38MiB |
| 0 N/A N/A 56313 G /usr/bin/octopi-notifier 1MiB |
| 0 N/A N/A 56599 G /usr/bin/octopi 1MiB |
| 0 N/A N/A 58259 G /usr/bin/kontrast 28MiB |
±----------------------------------------------------------------------------------------+ ```
The first photo with brightness on 100$
The second photo with brightness 99%
PS: This is my first bug report ever, so if I forgot to add something please don’t hesitate to correct me (politely) please.
Thanks