Describes an issue affecting some monitor models that switch from 8-bit/10-bit to 6-bit color depth after installing driver 220.127.116.1149 and newer.
Graphics driver 18.104.22.16849 and newer affects screen quality, reduced color depth, which gives very bad posterization over images and especially anything like skies or graduations.
Issue reported here https://communities.intel.com/thread/120305
Fix for this issue is included in driver 22.214.171.12444 and newer
Issue while retrieving EDID during panel's initialization, driver was returning incorrect data.