thanks @tommythorn , do you mind attached full booting log since I assume the clock of display(1920x1080 120.00fps from your message) is same as that 4k needed. if yes, please modify lightdm.conf as above mentioned
thanks @tommythorn , do you mind attached full booting log since I assume the clock of display(1920x1080 120.00fps from your message) is same as that 4k needed. if yes, please modify lightdm.conf as above mentioned