set display brightness

[anishbajpai014]

It would be great if scrcpy could set device brightness to 0 on start and reset it on exit.
The current value can be accessed using adb shell settings get system screen_brightness, and can be set using adb shell settings put system screen_brightness XX where XX ranges from 0 to 255.

On a side note, maybe a user can be allowed to run scripts at the start and exit of scrcpy.

[anishbajpai014]

All of this can be achieved using a bash script.
Closing.

[rom1v]

The current value can be accessed using adb shell settings get system screen_brightness, and can be set using adb shell settings put system screen_brightness XX where XX ranges from 0 to 255.

For completeness, screen_brightness_mode must also be set to 0:

adb shell settings put system screen_brightness_mode 0
adb shell settings put system screen_brightness 0

On a side note, maybe a user can be allowed to run scripts at the start and exit of scrcpy.

See #96.

All of this can be achieved using a bash script.

😉

I still implemented show touches as an option. I don't know if brightness deserve its own option too… For now, I don't think so.

[anishbajpai014]

I don't know if brightness deserve its own option too

Yeah you're right. A wrapper script is more than enough.
Script samples for the most frequent actions can be added to the readme though.

For example, this is the function I'm using -

function scrcpy () {
	brightness=$(adb shell settings get system screen_brightness)
	adb shell settings put system screen_brightness_mode 0
	adb shell settings put system screen_brightness 0
	adb shell svc power stayon usb
	command scrcpy
	adb shell settings put system screen_brightness_mode 1
	adb shell settings put system screen_brightness $brightness
	adb shell svc power stayon false
}

[rom1v]

👍

One question: I never used the command built-in bash command. What's the benefit concretely.

As a suggestion, you could forward the arguments to scrcpy:

    command scrcpy "$@"

[anishbajpai014]

The command function is there only because I wanted the function to have the same name.
If this function is called without command, it will keep calling itself recursively.

Totally forgot about passing the arguments. Thank you!

[rom1v]

A shortcut to turn device screen off is implemented on dev by 12a3bb2.

[pcgeek86]

FYI adb shell settings put system screen_brightness 30 doesn't work on Android TV. I'm trying it out on a Sony XBR X950G.

Anyone have alternative options to set screen brightness on Android TV?