Can you also test the latest upstream 4.4 kernel? This will tell us if the fix in mainline was already sent to stable or not. The 4.4.15 kernel can be downloaded from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4.15 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1593261 Title: Using "splash" Linux boot option causes IPMI console view to blank Status in linux package in Ubuntu: Confirmed Bug description: I'm using a set of blade servers with SuperMicro BIOS and IPMI console viewing capabilities. I use the Ubuntu netboot options with a PXE server to install. I've installed Ubuntu 12.04 and 14.04 on these systems, and everything works great. However, when I install Ubuntu 16.04 (and this is true both if I upgrade from Ubuntu 14.04 with do-release-upgrade AND when I install a fresh copy directly via the Ubuntu 16.04 netboot image via PXE), then the install works but when I reboot the IPMI console is completely blank: no cursor, no text, no typing shows anything. I can still SSH to the system (except of course the default netboot install doesn't include sshd for some bizarre reason so I had to play some tricks and rerun the install multiple times :-/). After a lot of experimentation I discovered that if I edit the /etc/default/grub file and remove the "splash" setting from GRUB_CMDLINE_LINUX_DEFAULT variable and re-run update-grub, then things worked fine and I was able to boot properly without losing access to the IPMI console. One more note: this is definitely a kernel issue because when I choose the older 14.04 kernel (3.13 or similar) from the boot menu on the system I upgraded from 14.04 to 16.04, with the "splash" setting still in the grub config and no other changes (so userspace is still all 16.04), I had no problems with the IPMI console viewer. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1593261/+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
