This looks very much like what's happening to me. I've got an Acer Aspire V5-551G with a 64-bit AMD processor with dual boot, Windows 10 and Ubuntu 16.10.
Ubuntu can be started and runs without problems with Linux kernel 4.4.0-45. When I try to start with any of the 4.8.0 kernels delivered with regular Ubuntu updates, they all hang after printing Läser in Linux 4.8.0-30-generic ... Läser in initial ramdisk ... Sorry for the partly Swedish text. I guess that the lines would start with "Loading" instead of "Läser in" on an English version. The behaviour is the same with all 4.8.0 versions, 4.8.0-26, -27, -28 and -30, and with -generic, -generic (upstart) and -generic (recovery mode). After a while the fan runs at full speed, as if the processor is working hard, but nothing happens. -- 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/1635447 Title: Upgraded or Live USB 16.10 hangs at boot up blank purple screen Status in linux package in Ubuntu: Confirmed Bug description: My HP dm3z-2000 laptop works out of box for everything with Ubuntu 16.04, but fails to boot up after upgraded to 16.10. The upgrading went smooth itself. Laptop still can boot up with the latest 4.4 kernel of 16.04 which I did a regular update/upgrade before 16.10 release upgrade. Then I tried to boot with 16.10 Live USB and got same result. It also can boot up with kernel 4.8 if "acpi=off" parameter in place, but it takes long time to boot up. Everything seems fine after logged in and Unity 8 session works too. I couldn't get any log files since the system won't boot up, Ctrl+Alt+F1 does nothing. I can only see some messages in text boot mode, so I took a screen shot with my phone and attached here. Let me know how to get more details. --- ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: renm 2918 F.... pulseaudio /dev/snd/controlC1: renm 2918 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 16.10 HibernationDevice: RESUME=UUID=7e8ca036-f81d-43e2-820a-1deadcffc2dc InstallationDate: Installed on 2016-10-08 (13 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) MachineType: Hewlett-Packard HP Pavilion dm3t Notebook PC Package: linux (not installed) ProcFB: 0 radeondrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-22-generic root=UUID=19005996-db50-4249-9c73-17cf874dc678 ro acpi=off ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0 RelatedPackageVersions: linux-restricted-modules-4.8.0-22-generic N/A linux-backports-modules-4.8.0-22-generic N/A linux-firmware 1.161 Tags: yakkety Uname: Linux 4.8.0-22-generic x86_64 UpgradeStatus: Upgraded to yakkety on 2016-10-15 (6 days ago) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 10/13/2010 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: F.15 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: 1482 dmi.board.vendor: Hewlett-Packard dmi.board.version: 76.34 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnHewlett-Packard:bvrF.15:bd10/13/2010:svnHewlett-Packard:pnHPPaviliondm3tNotebookPC:pvr0486200000241F00110320000:rvnHewlett-Packard:rn1482:rvr76.34:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP Pavilion dm3t Notebook PC dmi.product.version: 0486200000241F00110320000 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1635447/+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
