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From: Knut Petersen <Knut_Petersen@t-online.de>
To: "Antonino A. Daplas" <adaplas@gmail.com>
Cc: linux-fbdev-devel@lists.sourceforge.net,
	Andrew Morton <akpm@osdl.org>,
	benh@kernel.crashing.org
Subject: Re: BUG: fb_imageblit called before fb_check_var and fb_set_par function
Date: Fri, 26 Aug 2005 20:21:06 +0200	[thread overview]
Message-ID: <430F5D92.4080300@t-online.de> (raw)
In-Reply-To: <430F4AC2.70403@gmail.com>


> This has been discussed before.  Not all hardware can do a set_par()
> instantaneously, some may require seconds.  And that will become a 
> usability
> problem. Just imagine switching from one console to another and it takes
> 5 seconds.

That would be unacceptable, agreed. But it´s also not really acceptable 
to risk to execute a few
dozend imageblits in redraw_screen() while the hardware might be in an 
unusable state. Checking
for that situation every imageblit would have a big performance penalty.

knut


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  reply	other threads:[~2005-08-26 18:18 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-25 12:26 BUG: fb_imageblit called before fb_check_var and fb_set_par function Knut Petersen
2005-08-25 14:05 ` Antonino A. Daplas
2005-08-25 15:59   ` Knut Petersen
2005-08-25 18:09     ` Antonino A. Daplas
2005-08-26  8:23       ` Knut Petersen
2005-08-26 14:01         ` Antonino A. Daplas
2005-08-26 16:30           ` Knut Petersen
2005-08-26 17:00             ` Antonino A. Daplas
2005-08-26 18:21               ` Knut Petersen [this message]
2005-08-27  0:36                 ` Antonino A. Daplas

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