On Thursday 15 March 2012 05:23:50 Wu, Aaron wrote:
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.
-mike
[ Corrected obsolete linux-fbdev-devel address ]
On Thu, Mar 15, 2012 at 20:08, Mike Frysinger [off-list ref] wrote:
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".
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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