Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.18 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.18.3 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Tags added: bionic kernel-da-key -- 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/1788320 Title: After upgrading from 4.4.0 to 4.15.0 system doesn't boot - ACPI issue Status in linux package in Ubuntu: Incomplete Bug description: I'm using Xubuntu in an old system, I'm concerned because other users looking for a light OS for their old PC wouldn't be able to install or boot the 18.04 version and above. With kernel 4.4.0 the system boots without problem (xubuntu 16.04), after upgrading to kernel 4.15 the system doesn't boot anymore (18.04). This issue was present when testing kernel 4.13 too. The install crashes with an error: BIOS bug:8254 timer not connected to io-apic error on. Adding any of these commands to the boot allows the system to load properly: -acpi=off -pci=noacpi -acpi=noirq I attach the info related. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788320/+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