[howto] adjust screen color profile
Hey guys,
I was wondering if there is a way on the N9 to change the color settings of the screen I have 2 N9 and one of them has a more reddish tint to it whereas the other is bright white it's not that big of a deal but i thought i'd ask... [HOWTO] There are 3 color profiles (Neutral, Vivid and Subdued) that you can choose from the settings menu In order to change the color profile of your screen (to remove the reddish tint or ...) you need to edit mce.ini in /etc/mce/ as root. Best way to do this is imho to connect to your N9 using ssh and then gain root privileges. Code:
ssh user@ip_of_your_N9 (password) Code:
dmesg | grep -i pyrenees you have either a fe* or c1* screen Code:
[ 0.307434] panel-nokia-dsi display0: pyrenees panel revision c1.8b.96 MAKE A BACKUP Code:
cp mce.ini mce.ini_org Code:
cd /etc/mce/ Now at the bottom of the file there are the 2 display sections (for c1 and fe hardware revisions) looks like this: Code:
[Display-c1] A set of values for a profile looks like this - 3 values for brightness (lower limit, upper limit, high brightness -> I wouldn't touch those numbers as I don't know what they are doing) -3 values for the red color channel (R;G;B) -3 values for the green color channel (R;G;B) -3 values for the blue color channel (R;G;B) 3 + 3 + 3 + 3 makes a set consisting of 12 values and there is more than one set in the vivid profile (why? here) Now, in order to tone down for example the reddish tint you need to decrease the red values (R) of the red channel for the profile you are using (I'd do it for all profiles!) for your hardware revision e.g Neutral=0;330;0;175;48;13;22;206;28;8;8;240;330;9900;0;175;48;13;22;206;28;8;8;240 When you have changed all the numbers to your liking, save the file and reboot. If you are not satisfied play with the values until you are. Edit: As thedead1440 pointed out it may not be necessary to reboot Code:
/sbin/stop mce Be extremly careful what you edit and don't make any typos or you could end up with a brick and would need to do a full reflash of your device. I am not accountable for anything! Have a nice day ;) |
Re: adjust gamma - xorg.conf
I wonder if /etc/mce/mce.ini's [Display] section towards the bottom of the file for the 3 colour profiles allow changes that may allow the redish tint to be adjusted or is it just a poor quality screen you are stuck with it...
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Re: adjust gamma - xorg.conf
well it's a black 64 gb N9 and it's not some chinese version or somthing
but still i will look into the file you've pointed out any further help would be awesome |
Re: adjust gamma - xorg.conf
looks risky, as MCE is a entity that doesnt allow errors in its ini file..
screw up and its a re-flash for you... |
Re: adjust gamma - xorg.conf
Quote:
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I've been scouring the web for the past 2 hours and found nothing!
I thought this was linux? where are the xserver settings then ? ;) probably hardcoded or something |
Re: adjust gamma - xorg.conf
Perhaps color profiles? Settings -> Device -> Display -> Color profile would do it.
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Nop, already tried it.. still kinda reddish!
I mean it's not annoying or anything but i would like to know if it's even possible to change these settings somewhere... edit: I looked at the last few lines of mce.ini and tried to understand what's behind all of these values.... No luck so far If anyone has a clue how this works, let me know |
Very interesting. Maybe an app like Redshift or Flux from desktops could be made with this.
But do we edit profiles under -c1 or -fe display section? Editing mce.ini in realtime without Inception isn't possible,no? :) |
Code:
[Display-c1] |
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