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I've been using Voodoo Display Filter to dim my screen further than the normal minimum at night, and it works great. I want to do the same thing with the backlight for my touch buttons since it's incredibly bright.

I wrote a small script to try to do this:

cd /sys/devices/virtual/misc/melfas_touchkey/
while [1]; do
    echo 2 > brightness
    usleep 50000
done

This almost does the trick, but it seems to prevent some touches of the buttons from registering (presumably due to all the events being processed) and the light flickers when I touch one of the softkeys. Is there any solution that avoids these issues?

Total Screen Control doesn't really work and I'd rather have a free solution anyways, since I'm pretty close already. I believe CyanogenMod lets you control this as well but I want to stay on my current ROM (Bionix NextGen v1).

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2
  • Unsure about the Vibrant, but a custom kernel like Siyah for my S2 allows one to set the brightness for the backlight of the capacitive touch keys. Perhaps there's a kernel that offers similar functionality for your device?
    – Sparx
    Commented Nov 7, 2012 at 6:40
  • @Sparx Possibly ... I use the Voodoo ext4 lagfix so I'd need to find a kernel that supports both.
    – Matthew Read
    Commented Nov 7, 2012 at 16:57

1 Answer 1

Reset to default
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You can try Screen filter app in google play.

enter image description here

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  • Unfortunately this doesn't work on my Nexus 4.
    – Matthew Read
    Commented Apr 23, 2014 at 2:01
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    I have tried the app by Haxor that you linked to. Soft-key backlighting confirmed not working on my Nexus 7, HTC One V, Acer Iconia a500, Kyocera Event, Samsung S2, nor Nextbook 8HD8G.
    – HasH_BrowN
    Commented Jan 10, 2015 at 8:51

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