Joseph: The results are Ubuntu build-dependent:
For 16.04.3 there was no problem with earlier builds such as 4.13 29/32 and the most recent version that worked was 4.13 32/35. All build updates with kernels beyond that show the fault and won't boot-up: they just reach a frozen log-in screen. This includes the current ISO load of 16.04 which has 4.13 36/40. With 17.10 running on the same hardware, the current kernel is (also) 4.13 36/40 but this does not have the fault - the system boots up normally. So the fault may not actually be in the kernel! Regards Richard -----Original Message----- From: boun...@canonical.com [mailto:boun...@canonical.com] On Behalf Of Joseph Salisbury Sent: 12 March 2018 14:18 To: richard.emmer...@btinternet.com Subject: [Bug 1754571] Re: Desktop system won't run with latest kernel 4.13 36/40 Does this bug go away if you boot into the prior kernel? -- You received this bug notification because you are subscribed to the bug report. 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! --- 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: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1754571/+subscriptions --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1754571 Title: Desktop system won't run with latest kernel 4.13 36/40 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1754571/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
