Kernel doesn't load after kubuntu upgrade (from 15.04 to 15.10)

[Renato S. Yamane]

After updrade my laptop Lenovo T430u from Kubuntu Vivid to Wily), I can not load the kernel 4.2.0-23 or 4.2.0-25 (not tested other versions).

The only kernel I can use is 3.19.0-43 (from Kubuntu Vivid).

If I choose 4.2.0-xx kernel, I just can see a black screen.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-25-generic 4.2.0-25.30
ProcVersionSignature: Ubuntu 3.19.0-43.49-generic 3.19.8-ckt10
Uname: Linux 3.19.0-43-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: yamane 1879 F.... pulseaudio
CurrentDesktop: KDE
Date: Fri Jan 22 19:13:09 2016
HibernationDevice: RESUME=UUID=f11f0511-b75c-4a11-a486-9119d10ee8d7
InstallationDate: Installed on 2014-03-08 (685 days ago)
InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140308)
MachineType: LENOVO 33525SP
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-43-generic root=UUID=0575faf0-2a03-4d14-8eff-4e45024318f0 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-43-generic N/A
 linux-backports-modules-3.19.0-43-generic N/A
 linux-firmware 1.149.3
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to wily on 2016-01-15 (6 days ago)
dmi.bios.date: 01/11/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: H6ET90WW (2.08 )
dmi.board.asset.tag: Not Available
dmi.board.name: 33525SP
dmi.board.vendor: LENOVO
dmi.board.version: Win8 STD EM DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrH6ET90WW(2.08):bd01/11/2013:svnLENOVO:pn33525SP:pvrThinkPadT430u:rvnLENOVO:rn33525SP:rvrWin8STDEMDPKTPG:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 33525SP
dmi.product.version: ThinkPad T430u
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily

[Renato S. Yamane (renatoyamane)]

I tested with 4.4.0-040400-generic_4.4.0-040400.201601101930_amd64
Same problem.

[Renato S. Yamane (renatoyamane)]

There is no way to update BIOS :-(
My laptop don't have CD.

I downloaded BIOS ISO file;
$ geteltorito -o biosupdate.img h6uj08wd.iso
$ dd if=biosupdate.img of=/dev/sdc bs=512K

When I reboot and select USB boot, I receive an warning "No operating system found".

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Renato S. Yamane (renatoyamane)]

$sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
H6ET95WW (2.13 )
10/23/2015

After update BIOS, as requested, I still cannot boot using Kernel of Kubuntu 15.10 (4.2.0-36-generic).
The last one I can use is 3.19.0-43-generic (from Kubuntu 15.04).

If I choose kernel 4.2 on grub menu, I get a black window with no extra information.

[penalvch (penalvch)]

Renato S. Yamane, could you please test the latest mainline kernel (4.6) and advise to the results?

[Renato S. Yamane (renatoyamane)]

Tested with Kernel 4.6 (from kernel.org): I can boot with no problem!
Tested with Kubuntu 16.04 (live-cd): I cannot boot!
Tested with Kubuntu 15.10 (kernel 4.2.0-36): I cannot boot!
Tested with Kubuntu 15.10 (kernel 3.19.0-43): I can boot with no problem!

$ uname -a
Linux Eng-01 4.6.0yamane #1 SMP Fri May 20 20:08:32 BRT 2016 x86_64 x86_64 x86_64 GNU/Linux

[penalvch (penalvch)]

Renato S. Yamane, the next step is to fully reverse commit bisect from kernel 4.4 to 4.6 in order to identify the last bad commit, followed immediately by the first good one. Once this good commit has been identified, it may be reviewed for backporting. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ?

Please note, finding adjacent kernel versions is not fully commit bisecting.

After the fix commit (not kernel version) has been identified, then please mark this report Status Confirmed.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Renato S. Yamane (renatoyamane)]

No way!
There is a thousands of commits between 4.4 and 4.6
When I finish it, Kubuntu 18.04 will be on the way.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]