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3

I was running gnome 17.04 with no issues. I clean installed Ubuntu 17.1 and everything is fine except on shutdown / reboot it hangs with the following error. Only way to turn off is to hard power cycle which may be bad for hardware. How can I troubleshoot this?

Wlp6s0: failed to remove key (1, ff:ff:ff:ff:ff:ff) from hardware (-22)
Wlp6s0: failed to remove key (2, ff:ff:ff:ff:ff:ff) from hardware (-22)
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up vote 2 down vote accepted

3 ways to fix this problem:

First way: If you don't wanna make change to grub or changing the grub create other problems or you don't wanna upgrade the kernel:

  • Everytime when you see that error after turning off the pc,just press alt+F7.

Second way: Removing "quiet splash" from the parameters in grub:

  • gksudo gedit /etc/default/grub

    Change:

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

    To:

    GRUB_CMDLINE_LINUX_DEFAULT=""

    Then run:

    sudo update-grub
reboot

Third way:

  • Upgrade to kernel 4.13.6 or higher.
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I'm having this same problem and my wifi is acting like a yoyo since I upgraded to 17.10. Can u pls explain with more details how someone can upgrade to kernel 4.13.6 as I'm still new with linux and ubuntu and all this stuff?? – Nermeen Hussein Dec 3 '17 at 14:16
    
itsfoss.com/upgrade-linux-kernel-ubuntu @NermeenHussein – CnA Dec 3 '17 at 15:31
2  
As mentioned above, removing quiet splash causes booting to fail for several users. Upgrading to 4.14.4 for me caused a "Kernel panic - not syncing: VFS: Unable to mount root fs". Upgrading to 4.14.3 will boot but the same problem remains. Hitting Alt-F7 (not ctrl-alt-F7) is the only thing that works for me. – OrdinaryHuman Dec 9 '17 at 3:01
    
alt f7 working for me, what exactly does this do? I see a few more commands execute shortly thereafter. Might upgrade kernel soon. – edencorbin Dec 15 '17 at 11:34
up vote 3 down vote

I'm having this same issue, I'd be interested to see what the resolution is. I believe disconnecting from the Wireless connection will allow you to shut down gracefully if you haven't found out, but I'm not entirely sure how to resolve it either.

EDIT: Looks like this is resolved in a new kernel version, but I'd be interested to know if a fix exists.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1720930

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2  
FYI the suggested 'fix' for this of editing /etc/default/grub didn't fix this issue for me - when I did it, I was no longer able to log in until I reverted the change. Having reverted the change though, the error message seems to have disappeared, although the system still hangs. – walrus Nov 20 '17 at 15:15
1  
Same as @walrus, following the 'fix' in that issue only sent me into an infinite boot loop. As a temp workaround you can try downgrading the kernel from 14.13.0-17-generic to 14.13.0-16-generic, which allowed me to reboot without powering down. Error still shows but at least the reboot process initiates. – OrdinaryHuman Nov 25 '17 at 19:54

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