linux-kernel - Re: broadsheetfb and fbcon

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Message-ID: <20100607162817.GA13468@phenom.dumpdata.com>
Date:	Mon, 7 Jun 2010 12:28:17 -0400
From:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
To:	Robert Emanuele <rob@...nuele.us>
Cc:	linux-kernel@...r.kernel.org, jayakumar.lkml@...il.com
Subject: Re: broadsheetfb and fbcon

On Sat, Jun 05, 2010 at 04:21:08PM -0700, Robert Emanuele wrote:
> Greetings lkml and Jaya,
> 
> I've been using the broadsheetfb graphics driver for a while now.
> I've been trying to get it working with the fbcon console driver.  Has
> anyone had any success with that?
> 
> While it "works", its performance is unusable as a console.  It
> redraws the whole screen every new line, which may be acceptable.  A
> real issue is when it tries to scroll the screen, it redraws each line
> partially and then does a full screen update with each partial line.
> It seems the driver is capable from Jaya's video at
> http://www.youtube.com/watch?v=0Bny6qyRDWw
> 
> Are those kind of updates a limit of the broadsheet driver or fbcon?

I thought there was an update value on how often it should redraw. Did
you do a modinfo on the driver?
> Or more hopefully, is there a configuration change to improve this?
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