Display gets 100% brightness on wakeup (Linux, KDE)

[boredsquirrel]

Component

Dasharo firmware

Device

NovaCustom NV4x 11th Gen

Dasharo version

1.5.2

Dasharo Tools Suite version

1.2.20

Brief summary

When waking up from display off, the display is at 100% brightness

How reproducible

Always.

How to reproduce

In KDE I have set 1min to turn off the display. When I then move the cursor etc, the display turns on and has 100% brightness.

But it is still detected as 0% (for example) in KDE, setting it one step darker in the GUI settings makes it go to the correct level again. This will probably also happen when setting it one step higher.

Expected behavior

The display should have the brightness that the OS sets

Actual behavior

The brightness seems to not be read correctly or something, so that it is at 100% when waking up, until the OS sends another "change brightness" message

Screenshots

No response

Additional context

Likely not related to #297

Solutions you've tried

Manually changing the brightness works, needs to be repeated always.

[macpijan]

@mkopec may be related to the linux driver as well?

[mkopec]

I don't think so, the brightness is handled using a generic ACPI interface and should just work without extra drivers. We need to reproduce this first, I think I haven't seen this when using GNOME but I may be wrong.

[boredsquirrel]

I can still reproduce this

• Fedora Kinoite 40
• KDE Plasma 6

the button combo can only go to 5%, while the slider can go to 1%. I have not checked if the wakeup brightness thing still persists