Using a LG CX 55 and the Stadia app from the store.
After a few minutes of inactivity, the screen visibly dims. Pressing a button causes the screen to come back, but this may cause an unwanted action.
Games with long scenes are as such very prone to this issue, such as cyberpunk and life is strange. This is quite immersion breaking!
Chromecast ultra attached to same panel has no such issue, but it also frequently claims my panel does not support HDR so was lookiing at the app instead to save me rebooting the Chromecast.
Please fix.
@Twyst this sounds like a timeout issue from your TV setting. Can you try looking at your TV setting and if there's an option to prevent screen dimming after certain time passed?
@Ivanthe TV timeout is only for powering itself down and this is already disabled.
@Twyst Apologies if I'm repeating what you already did, since I don't have an LG TV I can't directly test (I badly want one though), but have you tried the steps to manage auto dimming from the following post? Check out the reply on top.
https://www.reddit.com/r/OLED/comments/j0zzao/is_there_any_way_to_disable_auto_dimming_on_the/
@JohnZoidberg @ViviFFIX you have LG TV right? Perhaps you can help chime in?
In the All Settings menu, under Support, there's an OLED care section. In that you'll have 3 options.
I have the top option set to "Off", under the device self care, you can turn the Energy Saving Step to off also and under OLED Panel Care, you can turn Adjust Logo Brightness to off.
Do note that doing this does make your TV more susceptible to screen burn/stuck pixels. It's not as common an issue with newer TVs but is something to be careful of.
I have an LG C1, but I don't use any of the built-in apps. I have a Chromecast Ultra for Stadia, and haven't seen any auto-dimming behavior from that (or any other source coming through my Denon receiver). I think @ViviFFIX is on the right track with looking at the OLED care settings, but I also wonder if this is an unintended behavior of the firmware – I can easily see them assuming dimming should kick in after inactivity while running any app, and they should consider allowing for that to be bypassed when running the Stadia app in particular (though OLED panels are more fragile than LCD when it comes to this sort of thing, so there is some risk to doing that).
Thanks for the above suggestions. I have disabled all power saving features and set logo luminance off but the issue remains. It does seem to take a little longer to kick in, but still during a 2 hour cyberpunk session the screen auto dimmed.in 2 long scenes. A quick test on the CCU and there are still no dimming issues.
This clearly has to be an issue with the stadia store app on the LG CX.