Dualshock 4 Controller Light Brightness cant set on linux

[MrCapone]

Your system information

• Steam client version:
  
• Distribution (e.g. Ubuntu): Linux Mint 18.1 Cinnamon 64 bit
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes

Steps for reproducing this issue:

1. Connect Dualshock 4 to PC and run Big Picture
2. Go to Settings - Controller Settings - Detected Controllers
3. Find your Dualshock 4 and open its Preferences
4. set Controller Light Brightness to non-zero value
   
5. click Submit and Controller LED goes out, if you open Preferences and look to Controller Light Brightness you will see zero value
6. Also if set Preferences on Windows, save them and then load on Linux by Steam Cloud all LED will works fine. But if you try set Preferences on Linux again, you will get this issue.

[kisak-valve]

Hello @MrCapone, What version of the steam package do you have installed via your package manager? More specifically, do you have the updated udev rule from https://steamcommunity.com/app/353370/discussions/0/490123197956024380/ which shipped with the 1.0.0.54 package?

[nadiaholmquist]

Do you use a non-English locale? If I launch Steam with LC_ALL=C I'm able to properly set the brightness of the lightbar, but if it's running with the system's default locale (Danish) then I have the same issue.
This also happens with the Steam Controller by the way.

Could this be because it doesn't handle the decimal separator being comma properly?

[MrCapone]

@kisak-valve i had 1.0.0.52, but i installed udev rule by myself. Now i updated package version. But it seems not the problem.
@Nephyrin yes i use Russian locale. Running Steam with LC_ALL=C solve the problem, thanks.

[jansegre]

I have this issue too. (DualShock 4, Steam on Linux)

It is as described, I can set the color and light brightness, but after hitting submit the color is saved but the brightness is reset to 0%, unless I set the brightness to 100% in that case when hitting submit it saves as 100%.

Setting LC_ALL=C when first starting Steam fixes it for me. I have LANG=en_US.UTF-8 but most others are LC_...=pt_BR.UTF-8.

[k-e-i-z-a-i]

This issue is still present.

• Steam client version (build number or date): Apr 28, 2023
• Distribution (e.g. Ubuntu): Pop OS
• Opted into Steam client beta?: [Yes/No] No
• Have you checked for system updates?: [Yes/No] Yes

I can set the DualShock4's brightness in the "regular" Settings or Big Picture mode's settings and these Brightness settings will persist for the rest of this Steam session. However, if I fully close Steam and then re-open Steam, Steam doesn't remember my Brightness settings until I either: 1) open up the screen with the Brightness slider in Destop Mode settings or 2) enter Big Picture mode. Doing either of this will retain the Brightness setting until the end of this Steam session.

This issue was opened in 2017. Is there any chance of getting it addressed soon?

[k-e-i-z-a-i]

Do you use a non-English locale? If I launch Steam with LC_ALL=C I'm able to properly set the brightness of the lightbar, but if it's running with the system's default locale (Danish) then I have the same issue. This also happens with the Steam Controller by the way.

Pardon my ignorance, but how can I launch Steam with LC_ALL=C?

[jsjolen]

@k-e-i-z-a-i , In a terminal write export LC_ALL=C and then run steam with steam