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Servus!

I am coding a demo for a prototype with a build in Z1 android phone watch. Problem is that the default contrast setting for its display is pretty bad. Depending on my brightness setting I can choose between black looks like grey or white looks like grey. So I went out and found an app called "Screen Adjuster" to change the screen contrast. But the thing is that this only let me lower the contract, but I need to raise it to get rid of the grey-color-problem.

Now I looked how to change the screen-settings on my own and did that at least for brightness. But now I got stuck searching for a way to get to some sort of contrast setting handle. I wonder if the app did that by some sort of filter overlay or something?? At least this would explain why its not possible to raise the contrast...

I need ideas!

edit: The device runs Android 2.2.1 and is already rooted.

Yannic Welle
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  • Take a look this answer . I think it will help you [http://stackoverflow.com/a/12892076/1214847][1] [1]: http://stackoverflow.com/a/12892076/1214847 – zapdroid Jan 21 '14 at 11:37
  • Thanks, I've seen that. But the contrast of the picture material isn't the problem, its the screen itself that needs to be adjusted. – Yannic Welle Jan 21 '14 at 11:41
  • It's not looks like as a programming question. – Divers Jan 21 '14 at 11:53
  • @Drivers Well, as I said I changed brightness programmaticly, am searching for a way to do that with contrast now and I did not ask for shell commands... But as you implicitly mention that: Maybe android has something like xrandr or xcalib that is accessible via adbshell... – Yannic Welle Jan 21 '14 at 12:16

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