Thanks for the tip, I've disabled secure boot, restarted into 5.11 but still no HDMI connection.
$ uname -r 5.11.0-051100drmtip20210223-generic
Thanks for the tip, I've disabled secure boot, restarted into 5.11 but still no HDMI connection.
$ uname -r 051100drmtip202 10223-generic
5.11.0-