Chromebook Plus: No wifi device after upgrading kernel

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Chromebook Plus: No wifi device after upgrading kernel

Postby darkgeek » Sun Jan 14, 2018 1:52 pm

Hi, all:

Just upgrade the kernel
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linux-gru
from
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4.4.104-1
to
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4.4.110-1
, I can not see my wifi device (wlp1s0) any more.

Before this update:

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justin@alarm:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 18:67:b0:12:2e:57 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.109/24 brd 192.168.0.255 scope global wlp1s0
       valid_lft forever preferred_lft forever
    inet6 fe80::1a67:b0ff:fe12:2e57/64 scope link
       valid_lft forever preferred_lft forever


After updating kernel:

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justin@alarm:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever


Only loopback is available.

And the following is the pacman log for this update:
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[2018-01-14 21:25] [PACMAN] Running 'pacman -Syu --color=auto'
[2018-01-14 21:25] [PACMAN] synchronizing package lists
[2018-01-14 21:25] [PACMAN] starting full system upgrade
[2018-01-14 21:26] [ALPM] transaction started
[2018-01-14 21:26] [ALPM] upgraded libwebp (0.6.0-1 -> 0.6.1-1)
[2018-01-14 21:26] [ALPM] upgraded glib2 (2.54.2-2 -> 2.54.3-1)
[2018-01-14 21:26] [ALPM] upgraded freetype2 (2.8.1-1 -> 2.9-1)
[2018-01-14 21:26] [ALPM] upgraded libx264 (2:148.20170521-1 -> 2:152.20171224-1)
[2018-01-14 21:26] [ALPM] upgraded mesa (17.3.1-2 -> 17.3.2-2)
[2018-01-14 21:26] [ALPM] upgraded ffmpeg (1:3.4.1-1 -> 1:3.4.1-3)
[2018-01-14 21:26] [ALPM] upgraded librsvg (2:2.41.2-1 -> 2:2.42.0-1)
[2018-01-14 21:26] [ALPM] upgraded gtk2 (2.24.31-1 -> 2.24.32-1)
[2018-01-14 21:26] [ALPM] upgraded libsoup (2.60.2-1 -> 2.60.3-1)
[2018-01-14 21:26] [ALPM] upgraded linux-gru (4.4.104-1 -> 4.4.110-1)
[2018-01-14 21:26] [ALPM-SCRIPTLET] >>> Updating module dependencies. Please wait ...
[2018-01-14 21:26] [ALPM-SCRIPTLET] A new kernel version needs to be flashed onto /dev/sda1.                                                                   
[2018-01-14 21:26] [ALPM-SCRIPTLET] Do you want to do this now? [y|N]
[2018-01-14 21:26] [ALPM-SCRIPTLET] You can do this later by running:
[2018-01-14 21:26] [ALPM-SCRIPTLET] # dd if=/boot/vmlinux.kpart of=/dev/sda1
[2018-01-14 21:26] [ALPM] upgraded tslib (1.14-1 -> 1.15-1)
[2018-01-14 21:26] [ALPM] upgraded webkit2gtk (2.18.4-1 -> 2.18.5-1)
[2018-01-14 21:26] [ALPM] transaction completed
[2018-01-14 21:26] [ALPM] running 'gdk-pixbuf-query-loaders.hook'...
[2018-01-14 21:26] [ALPM] running 'gtk-query-immodules-2.0.hook'...
[2018-01-14 21:26] [ALPM] running 'systemd-update.hook'...


When I downgrade the kernel back to 4.4.104-1, the missing wlp1s0 appears again.

So what should I do to fix it? Any help is appreciated. Thanks in advance. :)
darkgeek
 
Posts: 18
Joined: Fri Sep 12, 2014 2:19 am

Re: Chromebook Plus: No wifi device after upgrading kernel

Postby TheCycoONE » Tue Feb 20, 2018 1:07 am

Not much help, but i encountered the same issue. Except in my case it was 4.4.113 to 4.4.115
TheCycoONE
 
Posts: 4
Joined: Thu Aug 10, 2017 8:29 pm

Re: Chromebook Plus: No wifi device after upgrading kernel

Postby TheCycoONE » Tue Feb 20, 2018 1:19 am

For me, it worked when I downgraded the kernel and continued to work after updating back to 4.4.115-1. I can only speculate that something hidden is going wrong with the kernel installs occasionally.
TheCycoONE
 
Posts: 4
Joined: Thu Aug 10, 2017 8:29 pm

Re: Chromebook Plus: No wifi device after upgrading kernel

Postby TheCycoONE » Tue Feb 20, 2018 1:22 am

I think I see the problem. There is the query about flashing the new version. I bet I accidentally picked the default option (No) and then the WiFi module was out of sync with the kernel.

That seems to be what is happening in your posted log.
TheCycoONE
 
Posts: 4
Joined: Thu Aug 10, 2017 8:29 pm


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