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Another Clue with bad colors
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Please be positive and constructive with your questions and comments.

Another Clue with bad colors

by wminarik on Mon Apr 05, 2021 1:31 pm

Clue_Before_After.jpg
CLue before and after gamma fix
Clue_Before_After.jpg (134.65 KiB) Viewed 273 times

I've finally started playing with the Clue board in Adabox #15 (long story), and I've one of the Clues with the infamous blue screen tab and the washed out colors.
Here using purple.bmp and the example code from Carter Nelson's excellent displayio guide.
Using the gamma correction fix code from the forum: https://forums.adafruit.com/viewtopic.php?f=65&t=168145&start=60#p825486 fixes the problem
Code: Select all | TOGGLE FULL SIZE
display.bus.send(0x26, b"\x04")
when called right after display initialization.
The change doesn't persist after reset - will this fix have to be called in each CircuitPython script, or is there a way to permanently make this change? I'd like to use this board for teaching coding, and so would like the process streamlined.

wminarik
 
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Re: Another Clue with bad colors

by adafruit_support_carter on Mon Apr 05, 2021 1:35 pm

Let's just replace it. Send an email to support@adafruit.com with a link to this thread and your order number and they can send you a replacement CLUE board.

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Re: Another Clue with bad colors

by wminarik on Mon Apr 05, 2021 4:15 pm

Seems a bit extreme for a firmware fix, but thank you -some child will benefit!

wminarik
 
Posts: 19
Joined: Tue Jan 17, 2017 1:30 pm

Re: Another Clue with bad colors

by adafruit_support_carter on Mon Apr 05, 2021 5:19 pm

No worries, we've been dealing with that issue for a while. It's still essentially a mystery. We don't consider that gamma correction hack to be an actual fix. If you want to continue doing that and using that CLUE, go ahead, it won't hurt anything. But it doesn't persists so you'd have to have a special hacked version of every code just to run on that CLUE.

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Joined: Tue Nov 29, 2016 2:45 pm

Please be positive and constructive with your questions and comments.