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Re: no serial output when using cdk/ncurses with Fbsplash

From: Thomas Dickey
Subject: Re: no serial output when using cdk/ncurses with Fbsplash
Date: Wed, 1 Apr 2015 21:02:57 -0400
User-agent: Mutt/1.5.20 (2009-06-14)

On Wed, Apr 01, 2015 at 12:32:07PM +0200, daggs wrote:
> Greetings,
> I have a usb image that boots something called Fbsplash (see: 
> https://wiki.gentoo.org/wiki/Fbsplash).
> this requires booting the system with uvesa enabled.
> part of our gui I cdk based and the usb prints the output to both the screen 
> and serial port for saving.
> if I disable uvesa, I see all the outputs on both the screen and the serial 
> port but if I enable it, I'm missing outputs on serial when we use cdk.
> I've looked into the code of cdk and saw it is done in ncurses, looking at 
> ncurses's code didn't labeled out anything special.
> my only hunch is that ncurses writes directly into the vga buffer when not 
> using uvesa. is that correct?
> when using uvesa, where does ncurses writes to?

no - ncurses only knows how to write escape sequences to the terminal...

(MinGW port is a different case, but we've not mentioned that so far)

Thomas E. Dickey <address@hidden>

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