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From: Ray Strode <halfline@gmail.com>
Date: Tue, 19 Dec 2017 16:01:24 -0500
Message-ID: <CAA_UwzLoTDQMJUWTZq-U=crNpAKmc5DpBNwJtr3DOO2ywaTD7g@mail.gmail.com>
Subject: Re: [RFC PATCH v2 03/13] bootsplash: Flush framebuffer after drawing
To: Max Staudt <mstaudt@suse.de>
Cc: b.zolnierkie@samsung.com, linux-fbdev@vger.kernel.org,
        michal@markovi.net, sndirsch@suse.com, oneukum@suse.com,
        tiwai@suse.com, dri-devel@lists.freedesktop.org,
        "Linux-Kernel@Vger. Kernel. Org" <linux-kernel@vger.kernel.org>,
        bernhard.rosenkranzer@linaro.org, philm@manjaro.org
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Hi,

On Tue, Dec 19, 2017 at 10:41 AM, Max Staudt <mstaudt@suse.de> wrote:
> I'm hooking into the in-kernel terminal emulator, because the bootsplash is a
> functional extension of that. It just happens that fbcon sits on top of FB, so I
> work with what I get.
>
> And the console in turn happens to work on all FB and KMS drivers, so it
> makes users of all kinds of drivers happy. In fact, that's why the FB emulation
> in KMS drivers came to be in the first place, if I remember right - to ensure
> fbcon continues to work.

But what about multi-monitor? what about hidpi screens?  Ideally you want
each monitor to show the splash in a way that best fits that monitor.

You can't do that if you're drawing all over fbcon... and it's not like multiple
monitors and 4k screens are niche these days.

--Ray