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+--- Thread: 4K Success? (/showthread.php?tid=6363)
4K Success? - bprotas - 08-06-2018
Hi!
I'm trying to get my monitor to run at 4K (3840x2160) over either HDMI or USB-C using a DisplayPort adapter, but having no luck.
For USB-C/DP. I get no image when booting.
For HDMI, the system boots, but xrandr and the LXDE monitor settings app do not detect 3840x2160 as a resolution (maxes out at 1920x1080). I have used this monitor with this cable at 4K resolution on an Asus Tinkerboard also running lubuntu, so I feel confident that the monitor supports the resolution.
Does anyone have any pointers for either get USB-C/DP to work at all, or HDMI to detect 4k?
Thanks!
RE: 4K Success? - gabrielsr - 08-08-2018
I had success with HDMI and LXDE Desktop (too ugly in 4k) and with Bionic Containers images (after installing ubuntu-desktop with apt-get and some dpkg reconfigure to fix some issues while opening gnome-terminal).
I follow the must up-voted response here:
https://askubuntu.com/questions/377937/how-to-set-a-custom-resolution
Passing a custom resolution of "3840x2160_60.00" in HDMI-1.