Hi All I have been following this, having been led here by the guys from Ubuntu Budgie.
My GFX card is a Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) v: 4.5 Mesa 19.0.8 At 18.10 kernel all is fine with both flickering gone and being able to join screens via VGA / HDMI At 19.04 this is not the case with flickering occurring when the VGA cable is removed and built in screen of laptop is standalone. Have downloaded and applied various other kernels from https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel- nightly/current/ and have found that all work in some form of either curing the flicker but no ext VGA to having both, but no settings options in display settings from the desktop. Kernel 5.3.0-994 on the above URL however does work, with display settings and ext VGA / HDMI and standalone built in screen, with all function keys working too. Appreciate this is some leap from the supplied 5.0.0.27 kernel that came with my distro, but if people are in a position be able to load this kernel and choose at boot time then it might be fixed for you too. How you determine what is different between the kernels to see why it works now is another matter. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1785912 Title: Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s 13IKB 81BV To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1785912/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
