5 Practitioner

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3.1K Posts

October 20th, 2020 10:00

Jeez, You havin that issue too?

I have it with mine but mine is an older model which literally does the exact opposite colors of what its supposed to be.

Lets say you like red ok? nope, lets give you pink instead? No? How about blue? Sorry we only got green.

I fixed that issue with a CMOS battery disconnect and then I rebooted and reinstalled the command center.

1 Rookie

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42 Posts

October 26th, 2020 00:00

Older models have 4-bit per color, not 8-bit, it's a mess in any case. I reset the system (BTW, instead of remove CMOS, you can just shotdown, remove power cord and wait 10 sec - results are the same), but still like this. Currently i correct colors in my apps by software correction.

5 Practitioner

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3.1K Posts

October 26th, 2020 08:00

That’s really great!

I tried your method of turning it off for 10 seconds and then re plugged the power cord but it still had the color not being right so the CMOS was the only way I knew how.

 

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42 Posts

October 27th, 2020 01:00

My method is for reboot light system, not to fix this error. But I found the reason. In fact, for PWM-controlled LEDs, you heed to do gamma-correction to have right color. Nor hardware, driver or AWCC(!) don't do it. I implement it in my software, now all colors are correct. PS: If some guys from Dell read it - just as simple as r = r*r>>8, g=g*g>>8, b=b*b>>8 before color set.

5 Practitioner

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3.1K Posts

October 27th, 2020 07:00

Got it, I kept that in notes so I can change the colors properly.

I also managed to get white on the X51?

1 Rookie

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42 Posts

October 29th, 2020 20:00

What API version you x51 have?

I have issue with white point at my old 13R2, it have API V2 with 4-bit per color.

Let me check my archive, i found a color looks close to white, share rgb for you if found my old profile.

UPD: Ok, i check. You can't set it directly in AWCC, but use "Polar" scheme as a hint (decrease some blue). You need to modify profile file (it's xml), changing RGB there.

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