On Friday, 28 October 2016 12:19:56 UTC+1, Laszlo Zrubecz  wrote:

> Can you please describe in more details what and how you achieved?
> 

Found this in bash history backup:

dispcal -H -y l -R
(this is to adjust the brightness to the recommended level)

dispcal -v -m -y l -q l -t 6500 -g 2.2 lenovo_6500_22
(this creates the calibration file with selected quality, white point and 
gamma. inspect the file,  transfer it to dom0 and apply with dispwin 
<filename>.cal )

targen -v -d 3 -G -f 128 lenovo_6500_22
(creates a set of patches,you can change the number of patches)

dispread -v -N -H -y l -k lenovo_6500_22.cal lenovo_6500_22
(shows patches and measures them)

colprof -v -D "Lenovo Yoga 2 40% 6500K 2.2" -C "2016 CP" -q m -a G -n c 
lenovo_6500_22
(generates an ICC profile, try that, see if you need to tweak settings to 
improve it)


The Gnome calibration tool uses the same utilities as above but it doesn't know 
that the calibration curves don't get applied in a vm. It should work in dom0 
with direct access to USB and X server though. In any case don't forget to 
apply the calibration file in dom0! 

Hope this helps.

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