Stuart Bishop, I'm going to slightly recast the bug to more accurately reflect where your issue stands.
Also, are there any negative consequences by using acpi=off (ex. sluggish performance, graphics corruption, etc.)? ** Tags added: latest-bios-f.35 ** Summary changed: - HP Pavilion 13-b208tu fails to boot with F.26-F.34 BIOS, PSOD + HP Pavilion 13-b208tu fails to boot ** Description changed: - While trying to fix Bug #1432659, I updated the HP Pavilion 13-b208tu bios to the latest available on the HP website (F.26): - http://support.hp.com/us-en/drivers/selfservice/HP-Pavilion-13-b200-Notebook-PC-series/7527795/model/7597682 + When I updated to a version higher than F.23 but less than F.35, the + computer wouldn't boot at all. - After the update, the laptop no longer boots Ubuntu 14.10 or Ubuntu - 15.04 (Ubuntu 15.04 from the hard drive, Ubuntu 14.10 using a LiveCD). - The grub menu is available and works, the kernel loads, the initrd step - works, and then it hangs hard and requires power cycling. - - The required information for a kernel bug report can be found in Bug - #1432659, from the original shipped F.23 bios. I obviously can't attach - information with the F.26 bios loaded. - - I can confirm that the bios update worked, and I have repeated it twice. - HP diagnostics give the system a green light, and I can boot to FreeDOS - as normal. I'll leave the system unbootable with the F.26 bios for a - while in case someone can help me diagnose further from grub. + WORKAROUND: With F.35 BIOS use kernel parameter: + acpi=off -- 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/1434136 Title: HP Pavilion 13-b208tu fails to boot Status in linux package in Ubuntu: Incomplete Bug description: When I updated to a version higher than F.23 but less than F.35, the computer wouldn't boot at all. WORKAROUND: With F.35 BIOS use kernel parameter: acpi=off To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1434136/+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
