[Buildroot] [PATCH 1/1] Preliminary support for Raspberry Pi 3 with symlink
Luca Ceresoli
luca at lucaceresoli.net
Tue Apr 26 14:22:01 UTC 2016
Peter, Ubaldo,
On 25/04/2016 16:40, Peter Korsgaard wrote:
>>>>>> "Ubaldo" == Ubaldo Porcheddu <ubaldo at eja.it> writes:
>
> Hi,
>
>>>> I just tested the new kernel version but it doesn't give me the login
> >>> prompt, the kernel seems to be booting fine as it can recognize my
> >>> keyboard but it doesn't accept any input.
> >>>
> >>
> >> I had something similar, removed the 'console=ttyAMA0...' from the
> >> cmdline.txt file, and it booted through. Mine was not able to recognize
> >> my keyboard, but with dropbear and an extra user I was able to login.
>
> > after removing the extra console declaration I can also get the login,
> > my keyboard get recognized by the kernel but it doesn't work properly,
> > seems to be adding extra characters after any key press.
>
> Funky. Removing console=ttyAMA0 (or console=ttyS0) would mean that tty1
> becomes /dev/console, so we end up having two gettys running on tty1
> which could explain the double characters.
>
> I'm not sure why it doesn't work with console= pointing at the serial
> port. Luca, you added the serial console handling, any idea what might
> be going wrong?
At first sight, no. But I experienced a similar issue while I was
testing my patch [0].
I was able to login on tty1 with a USB keyboard, but typing a few
characters such as "ls<ENTER>" just after login would do weird things
like logging me out. This was using a super-cheap keyboard I had never
used before. I retried with a trusted one, and it was working just fine.
This got me clueless, so I triple-checked, and the problem was always
happening with the cheap keyboard, never with the trusted one.
I thought the cheap keyboard must be broken and "archived" it.
I would be surprised if you could solve your issues by changing
keyboard, but it's worth giving it a try...
[0]
https://git.buildroot.net/buildroot/commit/?id=20878a1017e2bf7eb8c5f870dc6d2641493cb0f9
--
Luca
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