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[Launchpad Bug Tracker <1531439@xxxxxxxxxxxxxxxxxx>]

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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

** Affects: linux (Ubuntu)
     Importance: Low
         Status: Incomplete


** Tags: amd64 apport-bug bios-outdated-1.16 kubuntu wily
-- 
Freeze after kernel upgrade to 4.0.23
https://bugs.launchpad.net/bugs/1531439
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