[GTALUG] Laptop (very) weirdness

Evan Leibovitch evan at telly.org
Thu Dec 14 19:45:26 EST 2017


Thanks!
That gives me something to work on.

- Evan


On 14 December 2017 at 17:00, Lennart Sorensen <lsorense at csclub.uwaterloo.ca
> wrote:

> On Sun, Dec 10, 2017 at 07:26:03PM -0500, Evan Leibovitch via talk wrote:
> > My dual-boot  Asus laptop now exhibits very strange behaviour.
> >
> > Under Windows 10 all is normal (well, its form of normal).
> >
> > Under Linux (current mint KDE)  at work, all seems ok.
> >
> > At home, all hell breaks loose. The only difference is the wifi.
> >
> > After a normal login not only does networking not come up but the KDE
> menu
> > bar doesn't display upon startup, all I have is the KDE wallpaper and a
> > working xterm. Simple commands work but 'sudo bash' hangs.
> >
> > If I try to shutdown the system hangs. ALT-F1 gives me some kind of
> massive
> > dump starting with the lines:
> >
> > BUG: unable to handle kernel NULL pointer dereference at 000000000000011c
> > IP iul_num_add_sta+0x49e/0x720 [iwlmvm]
> >
> > Can anyone make sense of why simply using a different wifi router would
> > cause this? An inability to connect is one thing, but this is nuts.
> >
> > (And people ask me why I hesitate to recommend desktop Linux to
> > non-techies...)
> >
> > Happy to bring it in to Tuesday's meeting if anyone can help...
> >
> > - Evan (on mobile)
>
> Sounds a bit like this:
>
> https://bugzilla.kernel.org/show_bug.cgi?id=195299
>
> So if it is that it should be fixed in 4.14 kernel.  Not sure what
> current mint uses.  A search seems to indicate it may be 4.10.
>
> It sounds like the trigger is a router using an illegal channel width
> on some channels on 5GHz.  At least that was what one person found.
>
> --
> Len Sorensen
>



-- 
Evan Leibovitch
Toronto, Canada

Em: evan at telly dot org
Sk: evanleibovitch
Tw: el56
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