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From: stsp <stsp2@yandex.ru>
To: Thomas Zimmermann <tzimmermann@suse.de>,
	linux-fbdev@vger.kernel.org,
	Linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: drmfb console switching problems/questions
Date: Fri, 9 Oct 2020 16:19:23 +0300	[thread overview]
Message-ID: <cacba527-fe32-e80c-4659-799452741791@yandex.ru> (raw)
In-Reply-To: <e2118f89-2c55-ec12-1e33-f2ba418af914@suse.de>

09.10.2020 15:58, Thomas Zimmermann пишет:
> Hi
>
> Am 09.10.20 um 14:16 schrieb stsp:
>> 09.10.2020 14:59, Thomas Zimmermann пишет:
>>> Fbdev exposes the video ram (or a shadow buffer of it) to all
>>> applications. Only one can draw at the same time. It's a limitation of
>>> the design. To fix this, your application has to stop drawing when you
>>> switch consoles.
>> OK, thanks for info.
>> Quite a sad news, if you ask me.
>> Is there any ongoing work at solving that?
> I don't think so. Both, SDL1 and fbdev, are pretty much dead these days.
> The solution to fbdev is DRM, which does not have these problems.
>
> You could your application under X11 to use SDL's X backend. X would do
> all the VC handling then.
That of course works.
I was trying w/o X.
Do you think it is possible for
me to test other techniques of
drawing under kms console?
Or fbcon and X are all that we
have?

  reply	other threads:[~2020-10-09 13:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-09 10:50 stsp
2020-10-09 11:59 ` Thomas Zimmermann
2020-10-09 12:16   ` stsp
2020-10-09 12:58     ` Thomas Zimmermann
2020-10-09 13:19       ` stsp [this message]
2020-10-09 13:31         ` Thomas Zimmermann
2020-10-09 14:14           ` stsp

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