This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- vivid' to 'verification-done-vivid'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-vivid verification-needed-wily -- 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/1529381 Title: [HP Compaq 6715s] Updating kernel renders system unbootable Status in linux package in Ubuntu: Fix Committed Status in linux source package in Vivid: Fix Committed Status in linux source package in Wily: Fix Committed Status in linux source package in Xenial: Fix Committed Bug description: [SRU Justification][Vivid][Wily] The kernel by default is now using 64 bit addresses from the FADT, however, some firmware has legacy 32 bit addresses that are correct and 64 bit addresses that are buggy and incorrect. This results in some machines breaking on boot. [Fix] Add a workaround kernel parameter that forces ACPI to use the 32 bit addresses from the FADT [Testcase] Without the fix, machine won't boot. With the fix add "acpi_force_32bit_fadt_addr" to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub, roll in the kernel and it will boot [Regression potential] This fix only twiddles the ACPI global variable acpi_gbl_use32_bit_fadt_addresses if the override flag is used on the kernel, so the regression potential is minimal as one has to force the flag to enable the feature. ------------------------------------ To reproduce (on this hardware) 1) Install 14.04.3 LTS (Ubuntu or XUbuntu) 2) Install updates 3) Reboot The kernel used after update is 3.19.0-42. Booting with the kernel that came with the install image (3.19.0-25) works fine. This computer is a HP Compaq 6715s. I have looked at HPs support pages for BIOS updates for this model but none was available. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.19.0-42-generic 3.19.0-42.48~14.04.1 ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2 Uname: Linux 3.19.0-25-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 CurrentDesktop: XFCE Date: Sat Dec 26 16:36:30 2015 InstallationDate: Installed on 2015-12-26 (0 days ago) InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) SourcePackage: linux-lts-vivid UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: XFCE DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=522810df-638a-412b-9aab-791e2e2bc545 InstallationDate: Installed on 2015-12-26 (0 days ago) InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) MachineType: Hewlett-Packard HP Compaq 6715s (RU655ET#AK8) Package: linux (not installed) PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-25-generic root=UUID=0dd333f9-6172-41eb-9472-a321d48c04eb ro quiet splash ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2 RelatedPackageVersions: linux-restricted-modules-3.19.0-25-generic N/A linux-backports-modules-3.19.0-25-generic N/A linux-firmware 1.127.19 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: trusty Uname: Linux 3.19.0-25-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo WifiSyslog: Dec 27 13:38:38 michael wpa_supplicant[815]: wlan1: CTRL-EVENT-SCAN-STARTED _MarkForUpload: True dmi.bios.date: 03/26/2007 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68YTT Ver. F.03 dmi.board.name: 30C2 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 71.21 dmi.chassis.asset.tag: CNU7201T8J dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68YTTVer.F.03:bd03/26/2007:svnHewlett-Packard:pnHPCompaq6715s(RU655ET#AK8):pvrF.03:rvnHewlett-Packard:rn30C2:rvrKBCVersion71.21:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP Compaq 6715s (RU655ET#AK8) dmi.product.version: F.03 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1529381/+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
