Brightness issue on startup LED Steam Deck 512 Stable

[Xenigh]

When I turn on or restart my steam deck the screen is brighter than I set it. Auto brightness is off and I am up to date on the stable channel.

When it's brighter if I move the brightness slider one notch higher or lower its goes to the brightness I set it around to which is always darker than it starts up at. This has been happening for a while on previous updates as well. It used to go to full brightness occasionally but now seems to be brighter than I set it every startup.

[focus]

Yep, getting the same thing here.

My brightness is about 30-40% but when I turn my Deck on (from being completely shut down) the brightness is higher for some reason. I do the same move-the-brightness-notch-one-click-and-back to reset it.

512gb LCD and on the latest stable update as well.

[Xenigh]

I turned the auto brightness off because I thought that might have been causing it but it wasn't. I also never noticed auto brightness working when it was on either.

[deaddoof]

Originally posted by Xenigh:

I turned the auto brightness off because I thought that might have been causing it but it wasn't. I also never noticed auto brightness working when it was on either.

Brightness on boot is handle by the graphics driver. Unless Valve wants to port the mainline driver to kernel 6.1, I do not experience this bug on newer kernels.

I would wait until Steam OS 3.6.

I have a LCD deck but the hardware should be the same in this area. The fixes should appear in Steam OS 3.6

[Oyster Of The Sea]

I've had this issue too for the last month, on preview.
It's pretty annoying, especially if it's late as the eyes get a right blasting until I go to the brightness settings to knock down a notch and then back so applies the correct level.

[cloudburst27]

Just wanted to share that I'm having the exact same issue on LCD 64. Definitely highly annoying... Hopefully it gets addressed soon.

[Carcrasher34]

Same issue here. It's getting annoying. Especially since I tend to shut my deck down when done and not just sleep it.

[noway42]

Same for me here ☹️ Please Valve get it fixed!

[dbully]

Same for me, exactly as described.
No solution yet?

[paparansen]

Still the same.

[Xenigh]

Still an issue

[jimsoon]

Same issue lcd 256 latest stable

[Guava]

Still an issue on LCD 256 GB latest stable. Almost 8 months since OP reported it!

[Xenigh]

Still an issue on 3.6.19

[adamantibus]

The brightness bug on desktop mode (it reverts to 100% every time it gets back from sleep) has been there for a year. SteamOS updates are not what they used to be.

[dr.robotnik]

Same issue lcd 512 latest stable