LSPCON init failed on port B
On Chuwi HeroBook Pro+ with intel hd graphics 500. The following error is shown in dmesg when plugging in the mini hdmi cable and external monitor is not recognized. I am using latest linux 5.11 kernel as well as latest linux firmware (https://packages.ubuntu.com/hirsute/linux-firmware v1.195 which includes the 49.0.1.bin files). No error occurs under Windows and the external monitor is recognized.
[ 37.501727] [drm:lspcon_init [i915]] *ERROR* Failed to probe lspcon
[ 37.501896] [drm:lspcon_resume [i915]] *ERROR* LSPCON init failed on port B