HDMI screen no signal until ubuntu boots - No uefi, no grub

Bug #1809753 reported by Anthony James Wallace on 2018-12-25
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux-firmware (Ubuntu)

Bug Description

Purchased new computer. Installed old hard drive. Uefi and grub working. Installed Ubuntu 18.04, as new install. After installing software and updates I have not seen Uefi splash or grub since. If I get into grub or UEFI I have no screen to work from as the HDMI shows yellow on its status which means no connection. Possibly has DP instead of HDMI as primary display but cannot test this until I get a suitable cable DP to HDMI. It seems to me though that the firmware update has messed this up.

Motherboard has American Megatrends UEFI, Processor is i7.

tags: added: 18.04
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