Ales, thank you for reporting this and helping make Ubuntu better. As per http://h20564.www2.hp.com/hpsc/swd/public/readIndex?sp4ts.oid=6943827&swLangOid=8&swEnvOid=4192 an update to your computer's buggy and outdated BIOS is available (1.16). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?
For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette . Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful. As well, you don't have to create a new bug report. Once the BIOS is updated, if the problem is still reproducible: 1) Please provide the output of the following terminal command (not perform an apport-collect): sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date 2) Please make a comment specifically advising on if there was an improvement or not. 3) Please mark this report Status Confirmed. If it's not reproducible, please mark this as Invalid. Thank you for your understanding. ** Tags added: bios-outdated-1.16 ** Package changed: xorg (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Importance: Undecided => Low ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1531439 Title: Freeze after kernel upgrade to 4.0.23 Status in linux package in Ubuntu: Incomplete Bug description: After the recent kernel upgrade 2.4.0-23 the computer freezes (see the screenshot) and I'm not able to login neither into a graphic mode nor the text console. When I try previous kernel 4.2.0-22 the result is the same even if it worked before. When I go to the recovery mode (Grub menu > Advanced options > Linux 4.2.0-23-generic (recovery mode)) and just select "Resume normal boot" it boots as normal and I can login into KDE. But I guess it is in some non accelerated graphics mode. * Kubuntu 15.10, uname: 4.2.0-23-generic #28-Ubuntu SMP Sun Dec 27 17:47:31 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux. * AMD Radeon R5 M255, using fglrx-updates ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: xorg 1:7.7+7ubuntu4 ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6 Uname: Linux 4.2.0-23-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: KDE Date: Wed Jan 6 09:59:24 2016 DistUpgraded: Fresh install DistroCodename: wily DistroVariant: kubuntu DkmsStatus: fglrx-updates-core, 15.201, 4.2.0-19-generic, x86_64: installed fglrx-updates-core, 15.201, 4.2.0-21-generic, x86_64: installed fglrx-updates-core, 15.201, 4.2.0-22-generic, x86_64: installed fglrx-updates-core, 15.201, 4.2.0-23-generic, x86_64: installed ExtraDebuggingInterest: I just need to know a workaround GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:2248] Subsystem: Hewlett-Packard Company Device [103c:224a] InstallationDate: Installed on 2015-10-23 (74 days ago) InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: Hewlett-Packard HP ProBook 450 G2 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-23-generic root=UUID=c9e0c6ee-c8a4-4d1a-a46e-a3b79c38f774 ro recovery nomodeset Renderer: Software SourcePackage: xorg UdevLog: Error: [Errno 2] Adresář nebo soubor neexistuje: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/20/2014 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: M74 Ver. 01.05 dmi.board.name: 2248 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 67.22 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrM74Ver.01.05:bd09/20/2014:svnHewlett-Packard:pnHPProBook450G2:pvrA3008CD10003:rvnHewlett-Packard:rn2248:rvrKBCVersion67.22:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ProBook 450 G2 dmi.product.version: A3008CD10003 dmi.sys.vendor: Hewlett-Packard version.compiz: compiz N/A version.fglrx-installer: fglrx-installer N/A version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.64-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.0.2-1ubuntu4 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.0.2-1ubuntu4 version.xserver-xorg-core: xserver-xorg-core 2:1.17.2-1ubuntu9.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.2-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0+git20150819-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20150808-0ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu3 xserver.bootTime: Wed Jan 6 09:49:37 2016 xserver.configfile: default xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.17.2-1ubuntu9.1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1531439/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp