Public bug reported: 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. ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: New ** Tags: 18.04 ** Tags added: 18.04 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1809753 Title: HDMI screen no signal until ubuntu boots - No uefi, no grub Status in linux-firmware package in Ubuntu: New 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1809753/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp