[Arm-dev] Gigabyte MP30-AR0, nomodeset, and retaining output on serial console

[Gordan Bobic]

I can confirm that adding:

earlycon=uart8250,mmio32,0x1c020000 console=ttyS0,115200 console=tty0

produces exactly the desired results - everything appears on the serial 
port, and as much as usual also appears on the VGA output.

Gordan

On 18/03/16 08:11, Chuong Tran wrote:
> Hi,
>
> You can add "earlycon=uart8250,mmio32,0x1c020000" to see how far the
> kernel boot on serial console can go.
>
> Also, make sure to say Y to CONFIG_SERIAL_8250 & relevant config in your
> kernel .config.
>
> Best regards,
>
> Chuong.
>
>
> On Fri, Mar 18, 2016 at 2:49 PM, Michael Howard
> <mike at dewberryfields.co.uk <mailto:mike at dewberryfields.co.uk>> wrote:
>
>     On 18/03/2016 03:18, Chuong Tran wrote:
>
>         Hi Gordan,
>
>         If you want to retain the output on serial console, please add
>         kernel command "console=ttyS0,115200" at the grub config.
>         If you want to see the kernel boot at both serial and vga, add
>         "console=tty0" (for vga) along side with "console=ttyS0,115200".
>         The output from VGA will come after kernel configure the video card.
>
>
>     I use this setting ("console=ttyS0,115200 console=tty0") but output
>     is not retained on the serial console. Maybe this is kernel specific.
>
>     --
>     Mike Howard
>
>
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