I've been running the same setup and it runs absolutely perfectly if I boot up with editing the Ubuntu command line in grub and add video=VGA-1:e
BOOT_IMAGE=/boot/vmlinuz-4.15.0-43-generic root=UUID=xxxxxxxx ro drm_kms_helper.edid_firmware=VGA-1:edid/hannsg.bin video=VGA-1:e adding the video=VGA-1:e will allow the drm_kms_helper.edid_firmware parameter to work and I get my proper display. If I don't add the video=VGA-1:e line it will come up at 1024x768 mode and give a "Could not apply the stored configuration for monitors". After I do this following xrandr command and the stored configuration is restored I get the flickering problem virtually INSTANTLY. $ xrandr --newmode "1920x1080R" 138.50 1920 1968 2000 2080 1080 1083 1088 1111 +hsync -vsync; xrandr --addmode VGA-1 "1920x1080R" With the video=VGA-1:e the stored configuration comes up properly on initial boot and the video drivers work perfectly, no flickering. https://ptouchman.blogspot.com/2018/12/my-edid-was-going-unrecognized- until-i.html I'll post a video when I dig out my digital camera. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1808626 Title: Triple buffer flickering and weird display updating To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1808626/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
