Ultrawide resolution is not recognized in Iris Plus Graphics G1 (Ice Lake) with i915 - LG 29WK500 @ 2560x1080 (21:9)
Hello,
The resolution 2560x1080 (21:9) of the LG Ultrawide 29WK500 is not recognized in Lenovo S145-15IIL running Iris Plus Graphics G1 (Ice Lake), only 1980x1080 is detected as maximum resolution.
Full environment: https://linux-hardware.org/?probe=8b5e58c580 Also confirmed on Fedora 33 and Ubuntu 20.04.
I am posting here because the same monitor/cable correctly works in another notebook running i915 on Intel Skylake GT2 [HD Graphics 520], with the exact same OS: Fedora 32, Gnome 3.36.6 / Wayland. In both cases the read EDID hex from the monitor is the same. HDMI cable is 2.1 (48Gbps).
Also, in a X11 session the resolution is not correctly recognized, but I can manually force it using xrandr.
Maybe this is an i915 issue?
Related post: https://bugzilla.redhat.com/show_bug.cgi?id=1883263
Any help is appreciated!
Best regards,
Mario