directfb+gtk平台运行gnash播放flash，不自动刷新显示

Question

OS用的是Fedora Core 7。
很奇怪的说，搞了一个星期没找到问题在哪儿。跑gtk_demo正常，但就是用gnash跑flash时，只有用“Meta + X + Mouse Movement ”来拖动gnash窗口，显示才会刷新，否则显示一直不刷新。这个时间flash是一直在播放的，但就是不刷新显示出来。
编译gnash时用的是agg做render
运行gnash时的输出如下：

     =======================|  DirectFB 1.0.0  |=======================
          (c) 2001-2007  The DirectFB Organization (directfb.org)
          (c) 2000-2004  Convergence (integrated media) GmbH
        ------------------------------------------------------------

(*) DirectFB/Core: Single Application Core. (2008-03-30 03:04)
(*) Direct/Thread: Running 'VT Switcher' (CRITICAL, 2369)...
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2370)...
(*) DirectFB/Input: Macintosh mouse button emulatio (1) 0.1 (directfb.org)
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2371)...
(*) DirectFB/Input: AT Translated Set 2 keyboard (2) 0.1 (directfb.org)
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2372)...
(*) DirectFB/Input: ImPS/2 Generic Wheel Mouse (3) 0.1 (directfb.org)
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2373)...
(*) DirectFB/Input: PC Speaker (4) 0.1 (directfb.org)
(*) Direct/Thread: Running 'Linux Input' (INPUT, 2374)...
(*) DirectFB/Input: Power Button (FF) (5) 0.1 (directfb.org)
(*) Direct/Thread: Running 'PS/2 Input' (INPUT, 2375)...
(*) DirectFB/Input: IMPS/2 Mouse 1.0 (directfb.org)
(*) Direct/Thread: Running 'Keyboard Input' (INPUT, 2376)...
(*) DirectFB/Input: Keyboard 0.9 (directfb.org)
(*) DirectFB/Genefx: MMX detected and enabled
(*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (directfb.org)
(*) DirectFB/Core/WM: Default 0.3 (directfb.org)
(!) DirectFB/FBDev: Panning display failed!
    --> Invalid argument
(*) Direct/Thread: Running 'EventBufferFeed' (MESSAGING, 2377)...

(gtk-gnash:2362): Gdk-DirectFB-WARNING **: gdk_window_set_keep_above() not imple                                             mented.

(gtk-gnash:2362): Gdk-DirectFB-WARNING **: gdk_window_set_keep_below() not imple                                             mented.

directfb，gtk，gnash也曾换用了最新版问题依旧。

有任何建议都欢迎给出。

Answer 1

DirectFB/FBDev: Panning display failed!
    --> Invalid argument
我觉得是这个问题，你的描画显示失败了。