Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.2 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/v4.2-unstable/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- 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/1487734 Title: Battery Absent On HP Split 13x2 Laptop Status in linux package in Ubuntu: Incomplete Bug description: I have an HP Split 13x2 laptop with Ubuntu Mate installed. dmesg shows "ACPI: Battery Slot [BAT0] (battery absent)". The battery icon shows "No battery present". ...I'm only able to run on AC power. --- I have tried: * Default and adjusted settings in BIOS. * Live versions of Ubuntu, Lubuntu and Ubuntu Mate. * Release 15.04 and 14.04 for all flavors above. * Installed ACPI. * Installed batmon. * Installed ibam. * Added to grub default boot line "acpi_osi=", then "acpi_osi=!Linux" then "acpi_osi=Linux". I have not tried recompiling the kernel, as several posts state the recompiling didn't work for them if not on a Toshiba. --- I'd really like to get this working...the laptop is needed for work done in areas where AC power won't always be present. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1487734/+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