Gamma randomly changing on my laptop

[MurdockG]

When I Atl Tab or sometimes randomly the gamma/brightness changes. Any help?

 

[Sumanth_Summy]

does this occur when you remove the power source ?
like, when u remove the power source you will notice kind of change in the colors (You will notice poor colors ) is this the case ?

if it is , open "Intel HD Graphics Control Panel" by right clicking on your dekstop, then head over to "POWER" option, then select "ON BATTERY" and disable both "EXTEND BATTERY FOR GAMING" as well as "DISPLAY POWER SAVING TECHNOLOGY"...

Hope this helps