Re: How to install firmware-linux-nonfree

DI Florian Reitmeir <[email protected]> writes:

> Am 16.07.2017 um 10:07 schrieb Dekks Herton:
>> Dave Horsfall <[email protected]> writes:
>>> On Sat, 15 Jul 2017, DI Florian Reitmeir wrote:
>>>> > Quoting from Wikipedia: "802.11n can use either the 2.4 GHz 
>>>> > > or
>>>> the 5 > GHz band"; does that not mean what it seems to say?
>>>>
>>>> this is not wrong, but nearly all adapters support wireless 
>>>> to the
>>>> very old 801.11b for compatibility. so if an adapter support 
>>>> 5ghz,
>>>> he will in 99% also support 802.11a but if he supports 
>>>> 802.11n 5ghz
>>>> is not mandatory
>>> Ah, so it *might* support 5GHz... :-(  Thanks.
>>>> you can also post which chipset your notebook uses, but most 
>>>> devices
>>>> only support 2,4ghz
>>> Oops, I forgot; "lsusb" plays its cards close to its chest, 
>>> but I
>>> found this in "dmesg": Atheros AR9565 Rev:1.  After some 
>>> searching, I
>>> see that it doesn't do 5GHz...
>>>
>>> Will trade Acer Aspire E-15 for a Debian-compatible laptop if 
>>> it does
>>> 802.11a :-)
>> Can you not swap the wifi card out for a better one?
> on most systems this is simple not possible to the fact, that 
> for 5ghz
> you would need an extra antenna in the laptop case.

True if the OP wants 5ghz but not all wifi cards are equal. WRT 
Linux anything Realtek IMO should be removed and an eqivalent 
intel/atheros installed.