Re: [Linux-fbdev-devel] [uclinux-dist-devel] [PATCH] [#7001] framebuffer: old image of last app woul
From: Mike Frysinger <hidden>
Date: 2012-03-15 19:29:20
On Thursday 15 March 2012 15:22:34 Geert Uytterhoeven wrote:
On Thu, Mar 15, 2012 at 20:08, Mike Frysinger wrote:quoted
On Thursday 15 March 2012 05:23:50 Wu, Aaron wrote:quoted
Old image of last application would retain for a while when starting a new application, this patch clear the frambuffer before displaying every time the fb is opened.i'm not sure the behavior you describe is wrong. in fact, i'm pretty sure it sounds correct. if an app writes an image to the framebuffer and then quits, that image should stay there indefinitely until something else opens the framebuffer and draws their own image.Indeed. Else can you no longer make a screenshot using "cat /dev/fb0 > file".
ironically, that's one method we've documented for Blackfin platforms :) http://docs.blackfin.uclinux.org/doku.php?id=uclinux-dist:framebuffer -mike
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