Does this bug go away if you boot into the prior kernel?
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https://bugs.launchpad.net/bugs/1754571
Title:
Desktop system won't run with latest kernel 4.13 36/40
Status in linux package in Ubuntu:
Confirmed
Bug description:
My Intel-based desktop system was working fine with Ubuntu 16.04.3 and
Linux 4.13 32/35 up to 12 Feb 18. Since then it has been unable to
complete a boot-up, and will only run in recovery-mode. I have found
similar symptoms as were previously raised in bug 1568211. These are
the boot messages:
:~$ sudo dmesg | egrep 'drm|radeon'
[ 1.803359] [drm] VGACON disable radeon kernel modesetting.
[ 1.803429] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
[ 8.597977] [drm] VGACON disable radeon kernel modesetting.
[ 8.598047] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
[ 29.552451] [drm] VGACON disable radeon kernel modesetting.
[ 29.552497] [drm:radeon_init [radeon]] *ERROR* No UMS support in radeon
module!
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ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: richard 1817 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=4b36ebcc-b1ad-499c-96c6-a1706f5c11a7
InstallationDate: Installed on 2018-02-21 (16 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64
(20170801)
Package: linux (not installed)
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-36-generic
root=UUID=d5aa5d6c-b0b8-4b3c-8016-25e0c3efb9ef ro recovery nomodeset
ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13
RelatedPackageVersions:
linux-restricted-modules-4.13.0-36-generic N/A
linux-backports-modules-4.13.0-36-generic N/A
linux-firmware 1.157.17
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: xenial
Uname: Linux 4.13.0-36-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 04/19/2010
dmi.bios.vendor: Intel Corp.
dmi.bios.version: WBIBX10J.86A.0293.2010.0419.1819
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: DP55WB
dmi.board.vendor: Intel Corporation
dmi.board.version: AAE64798-205
dmi.chassis.type: 2
dmi.modalias:
dmi:bvnIntelCorp.:bvrWBIBX10J.86A.0293.2010.0419.1819:bd04/19/2010:svn:pn:pvr:rvnIntelCorporation:rnDP55WB:rvrAAE64798-205:cvn:ct2:cvr:
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