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bluetooth keyboard

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  bluetooth keyboard mick crane <mick.crane@gmail.com> - 2021-08-09 00:20 +0200
    Re: bluetooth keyboard Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-08-09 03:50 +0200
      Re: bluetooth keyboard Klaus Singvogel <deb-user-ml@singvogel.net> - 2021-08-09 11:00 +0200
        Re: bluetooth keyboard deloptes <emanoil.kotsev@deloptes.org> - 2021-08-09 11:20 +0200

#238372 — bluetooth keyboard

Debian 11
I like the little generic bluetooth keyboards but it is annoying that 
when they go to sleep it takes a few seconds for everything to wake up 
so you can commence typing.
Is it perhaps to do with the PC polling the keyboard for activity and 
can that be made quicker ?
mick
-- 
Key ID    4BFEBB31

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#238374

[Multipart message — attachments visible in raw view] — view raw

Hi,

On 2021-08-08 6:14 p.m., mick crane wrote:
> Debian 11
> I like the little generic bluetooth keyboards but it is annoying that
> when they go to sleep it takes a few seconds for everything to wake up
> so you can commence typing.
> Is it perhaps to do with the PC polling the keyboard for activity and
> can that be made quicker ?
No, this is related to the way the bluetooth stack work.
When you use a hardware keyboard (USB or PS/2 for example), the
interface is purely thru the use of a driver in the kernel (USB driver
or PS/2 driver).
When you use a Bluetooth keyboard, the driver in the kernel or as a
module is only responsible for the dongle itself. There's a software
stack that manage authentication, connection to devices and more. This
software stack has to be launched so the keyboard can communicate with
the PC (or the PC get info from the keyboard).
This take much more time than a simple USB driver. It's also one of the
reason that make it impossible to use a Bluetooth keyboard to
communicate with GRUB or another bootloader or simply access the system
configuration of your PC.

Does this help ?
> mick
Sincerely, with solidarity,

-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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#238379

Polyna-Maude Racicot-Summerside wrote:
> On 2021-08-08 6:14 p.m., mick crane wrote:
> > I like the little generic bluetooth keyboards but it is annoying that
> > when they go to sleep it takes a few seconds for everything to wake up
> > so you can commence typing.
[...]
> It's also one of the
> reason that make it impossible to use a Bluetooth keyboard to
> communicate with GRUB or another bootloader or simply access the system
> configuration of your PC.

This means, that I can't change nor access my BIOS / UEFI settings by a BT keyboard?

Thanks in advance.

Best regards,
	Klaus.
-- 
Klaus Singvogel
GnuPG-Key-ID: 1024R/5068792D  1994-06-27

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#238383

Klaus Singvogel wrote:

> This means, that I can't change nor access my BIOS / UEFI settings by a BT
> keyboard?

It depends on the hardware and BIOS. Some newer especially with integrated
BT would implement a HID driver, so that you could, but if it would work
with each keyboard etc. no idea.
It is risky ... keep one with USB cable around for the case.

-- 
FCD6 3719 0FFB F1BF 38EA 4727 5348 5F1F DCFE BCB0

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