Toshiba laptop wireless networking erratic and slow

Peter Smout smoutpete at gmail.com
Mon Mar 3 18:22:58 UTC 2014


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On 03/03/14 18:05, Liam Proven wrote:
> On 3 March 2014 17:38, Peter Smout <smoutpete at gmail.com> wrote:
>> I noticed the problem disappear when I upgraded to 13.10 so the advice
>> about upgraded kernel rings true with me also.
> 
> FWIW, as I've posted several times previously, there are backport
> kernels for LTS releases - you don't need to upgrade a whole distro
> release just for a newer kernel.
> 
> Q.v.
> 
> <<
> If you're still running "Lucid", 10.04, and are having driver problems
> or something, there are now 3 different newer kernels available.
> 
> The kernel contains wifi drivers and so on. The only main class of
> driver it doesn't contain are graphics drivers for X.org - X contains
> its own. However, some newer proprietary graphics drivers, e.g. from
> nVidia, may require a newer kernel than Lucid's 2.6.32 to install and
> work correctly. These kernels are thus a considerable boon for quite a
> lot of reasons and may help 10.04 to remain useful for some time to
> come yet. For instance, they are great if you don't like Unity and are
> waiting for GNOME Shell to become a bit more mature, say. They aren't
> just for servers.
> 
> They newer kernels are backported from 10.10 ("Maverick"), 11.04
> ("Natty") and 11.10 ("Oneiric").
> 
> There are 3 different kernels in each family: one generic, one generic
> with PAE support for 32-bit machines with 4GB or more of RAM, and one
> for servers.
> 
> If you look in Synaptic (or the package manager of your choice), you
> should see (for example):
> 
> linux-image-generic-lts-backport-natty
> 
> and the matching linux-image-generic-pae-backport-natty and
> linux-image-server-backport-natty.
> 
> There are also families ending -oneiric and -maverick.
> 
> From memory, the standard 10.04 kernel is version 2.6.32-xx where -xx
> is the current build.
> 
> The Maverick series are 2.6.35-xx, Natty ones are 2.6.38-xx and the
> Oneiric series are 3.0.0-xx.
> 
> If you install (say) linux-image-generic-lts-backport-natty, you will
> get the current build of 2.6.38-xx and it will be updated as newer
> builds are sent out. You don't need to install a specific version - if
> you do so, it will *not* be updated.
> 
> I have found that the PAE kernel will not boot on some Celeron
> machines which have the PAE functionality disabled, so I recommend
> against using it unless you know you will need support for >= 4GB RAM.
> 
> I have resolved quite a few problems with these, including machines
> that hang on shutdown rather than switch off, getting newer WLAN
> chipsets going that did not work with the standard 10.04 kernel, and
> supporting some Sony Vaio machines that will not boot older kernels
> successfully.
> 
> The same kernels are also available in Mint 9, as it is based on Ubuntu 10.04.
>>>
> 
> The same as the above is true for Precise - the backports are called
> -quantal, -raring and -saucy.
> 
>> Note: normal (sudo) apt-get update/upgrade no-longer does kernel
>> upgrades, apt-get dist-upgrade does!!
> 
> `apt-get dist-upgrade` is the norm. It does not install new packages
> unless required by a dependency, which shouldn't normally happen
> AFAIK.
> 
> The backport kernels are new packages so a-g d-u won't install them, no.
> 
> *But* if you install the backport by name, then a-g d-u will update it
> for you as new builds of the backport kernel are released.
> 
Did Not Know That!! Thanks for info stored for future reference!!

Cheers

Pete S
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