[directfb-dev] no output on screen
Denis Oliver Kropp
dok at directfb.org
Sat Aug 23 21:49:43 EST 2008
刘小双 wrote:
> hi, all
> I am writing a gfxdriver for Fujitsu mb86296 video card under DirectFB.
> When I run a example df_fire from DirectFB-examples-1.0.0.tar.gz, there
> is no output on the computer screen, it is black completely, and the
> error result looks like this:
>
> sh-3.00# ./df_fire
>
> =======================| DirectFB 1.0.0 |=======================
> (c) 2001-2007 The DirectFB Organization (directfb.org
> <http://directfb.org>)
> (c) 2000-2004 Convergence (integrated media) GmbH
> ------------------------------------------------------------
>
> (*) DirectFB/Core: Single Application Core. (2008-06-03 03:01) [ TRACE ]
> (*) Direct/Memcpy: Using ppcasm_memcpy()
> (*) Direct/Thread: Running 'VT Switcher' (CRITICAL, 502)...
> (*) Direct/Thread: Running 'PS/2 Input' (INPUT, 503)...
> (*) DirectFB/Input: IMPS/2 Mouse 1.0 (directfb.org <http://directfb.org>)
> (*) Direct/Thread: Running 'Keyboard Input' (INPUT, 504)...
> (*) DirectFB/Input: Keyboard 0.9 (directfb.org <http://directfb.org>)
> (*) DirectFB/Graphics: Fujitsu MB86296 0.5 (Atom Create)
> (!) [ 493: 0.000] --> Caught signal 11 (at (nil), invalid address) <--
> (-) [ 493: -STACK- ]
> #0 0x0fecef48 in signal_handler () from
> /mnt/gtkdfb/lib/libdirect-1.0.so.0
> [0xfec4000]
> #1 0x0ffc5b40 in dfb_screens_initialize () from
> /mnt/gtkdfb/lib/libdirectfb-1.0.so.0 [0xff5f000]
The code you sent is looking fine. Please try a build with debug enabled (assertions).
--
Best regards,
Denis Oliver Kropp
.------------------------------------------.
| DirectFB - Hardware accelerated graphics |
| http://www.directfb.org/ |
"------------------------------------------"
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