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[Bug 1573597] Re: Problems with shut down and boot (Lenovo T450s)
I have upgraded to 16.04. There are new problems with RAM/swap
shutdown, which didn't work once in recent months on 15.10, works as it
should now under 16.04
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Problems with shut down and boot (Lenovo T450s)
Status in linux package in Ubuntu:
My Lenovo T450s under Ubuntu 15.10 does not poweroff normally.
Instead, it hangs on "Reached target shutdown". (See image)
Along the way, I believe there is briefly a full page of "drm:gen8_irq_handler [i915] *ERROR* The master control interrupt lied (SDE)!" messages.
If I leave it there for a long time (> 10 minutes?) it does/may
actually turn off without me forcing it off, but this makes no
difference to the subsequent behaviour. Moreover, if I press Ctrl-
Alt-Del fast, many times, I get the "Rebooting immediately" message,
but it doesn't.
When I try to boot, I experience the following. It requires at least
two reboots to be able to log in:
On the first boot, the Grub page is skipped, and it hangs on the Ubuntu logo with moving dots.
Eventually, I reboot it.
The second time (this is all reproducible), it boots but very slowly. It stalls at "britty.service" and eventually gives me a message
about dev-disk-by , where it waits for 90 seconds before booting.
After that, things proceed to a normal login screen. Behaviour after that is sometimes normal.
This is a 1 month-old computer.
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-35-generic 4.2.0-35.40
ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic x86_64
USER PID ACCESS COMMAND
/dev/snd/controlC2: cpbl 3380 F.... pulseaudio
/dev/snd/controlC0: cpbl 3380 F.... pulseaudio
/dev/snd/controlC1: cpbl 3380 F.... pulseaudio
Date: Fri Apr 22 08:42:59 2016
InstallationDate: Installed on 2016-02-12 (69 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
MachineType: LENOVO 20BXCTO1WW
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic.efi.signed root=UUID=ea2fb511-8d62-4b96-bdaa-4b3f7bf79cc6 ro noprompt quiet splash
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.version: JBET54WW (1.19 )
dmi.board.asset.tag: Not Available
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.product.version: ThinkPad T450s
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