[GLK] no signal - with samsung 4k TV - HDMI UHD Color (ENABLED) (#271) · Issues · drm / intel · GitLab
Submitted by Piotr Kasp. Assigned to Shashank Sharma @contactshashanksharma Link to original bug (#110496)...
gitlab.freedesktop.org
I had this issue with J4105 board + 2018 Samsung 4K TV.
4K 50/60Hz mode should work with LE11 and HDMI UHD Color=off. It will be limited to 4:2:0 8-bit.