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

Fri Mar 18 08:11:08 UTC 2016
Chuong Tran <cltran at apm.com>

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>
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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