I tried unplugging every device from the computer and only plugged in usb cable keyboard and both monitors connected, tried forcing sleep, same issue..
I checked the linux-firmware package on my 20.3 backup, the version I have there was linux-firmware 1.201.5, so I tried downgrading (21 has 20220329.git681281e4-0ubuntu3.3), no luck, same issue..
as for the dmesg errors, the only additional error I have there is
Code: Select all
mtd device must be supplied (device name is empty)
and
Failed to enable link training
behavior is following:if only one monitor is connected, and it is connected via HDMI, the issue is not present and nor is the line in the dmesg, great success
if one monitor is connected via HDMI and second via DP, the issue is present, and as soon as monitors wakes up from sleep, this pops into dmesg:
Code: Select all
i915 0000:00:02.0: [drm] *ERROR* [ENCODER:111:DDI C/PHY C][DPRX] Failed to enable link training
Code: Select all
i915 0000:00:02.0: [drm] *ERROR* failed to enable link training