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my board can start up and I can use remote matrix. but LCD always black.
there are some information:
<<<<<<<<<<<<<<<<<<<<<<<start
root@am335x-evm:/# /etc/init.d/matrix-gui-2.0 start
/
Removing stale PID file /var/run/matrix-gui-2.0.pid.
Starting Matrix GUI application.
root@am335x-evm:/# /etc/init.d/matrix-gui-2.0 stop
Stopping Matrix GUI applicationstart-stop-daemon: warning: killing process 1961: No such process
PVR: Hint: Setting WindowSystem to libpvrDRMWSEGL_FRONT.so
PVR:(Error): OpenServices: Cannot open device driver /dev/omapdrm_pvr. [140, /pvr_bridge_u.c]
PVR:(Error): PVRSRVConnect: Unable to open connection. [361, /bridged_pvr_glue.c]
Cannot initialize PVR2D contex
Could not initialize egl display
/etc/init.d/matrix-gui-2.0: line 17: 1964 Aborted refresh_screen "background-black"
.
root@am335x-evm:/# matrix_browser
PVR: Hint: Setting WindowSystem to libpvrDRMWSEGL_FRONT.so
PVR:(Error): OpenServices: Cannot open device driver /dev/omapdrm_pvr. [140, /pvr_bridge_u.c]
PVR:(Error): PVRSRVConnect: Unable to open connection. [361, /bridged_pvr_glue.c]
Cannot initialize PVR2D contex
Could not initialize egl display
Aborted
root@am335x-evm:/# dmesg |grep drm
[ 1.008124] [drm] Initialized drm 1.1.0 20060810
[ 1.022149] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 1.029096] [drm] No driver support for vblank timestamp query.
[ 1.098260] [drm] Initialized tilcdc 1.0.0 20121205 on minor 0
>>>>>>>>>>>>>>>>>>>end
PS : cat aaa.bmp >/dev/fb0 can put picture on the LCD ,but the picture updown.
It shows TI status bar when the system power on and power off.
how can I use Matix GUI on LCD.
thanks a lot !!
呀,可以写中文阿。哈哈哈
背光没问题,使用 “cat aaa.bmp >/dev/fb0”可以显示图片的,只不过图片是上下颠倒的。
还有就是不显示Matix时屏幕上有一个光标。如果
/etc/init.d/matrix-gui-2.0 stop 之后屏幕会显示命令行,插上键盘可以登录使用命令行。
谢谢。。
启动的时候可以看见小企鹅,也可以看见TI的一个开机进度条,当然关机的时候也可以看见关机的一个进度条。就是看不见Matix界面,显示一个光标像下划线。
/etc/init.d/matrix-gui-2.0 stop 之后还可以看见登录界面。
是LCD,是我司自己的板子,类似SK。用的是最新的2.0版本的SDK,对文件系统没有做任何改变。
网页可以访问Matrix,之前0.6版本的SDK是可以在LCD上显示并正常工作的。
分辨率应该没问题,用之前0.6版本的SDK都是好的。
我觉得matrix_browser有问题,因为执行matrix_browser会有如下错误:
PVR: Hint: Setting WindowSystem to libpvrDRMWSEGL_FRONT.so
PVR:(Error): OpenServices: Cannot open device driver /dev/omapdrm_pvr. [140, /pvr_bridge_u.c]
PVR:(Error): PVRSRVConnect: Unable to open connection. [361, /bridged_pvr_glue.c]
Cannot initialize PVR2D contex
Could not initialize egl display
Aborted
///////////////////
本来没有 /dev/omapdrm_pvr,后来发现sdk提供的extra-drivers里面有omapdrm_pvr的驱动编译了omapdrm_pvr.ko,插入模块后有了/dev/omapdrm_pvr
可是错误没有任何改变阿。。。
可能我没表述清楚,我的意思是即使我在/etc下去掉PVR初始化脚本,也没有效果,matrix_browser启动的时候好像还有初始化PVR的动作(根据打印的信息判断,上面已经贴出)。
所以我判断是否要在matrix_browser中去掉PVR初始化。
您好,现在的问题是,我在AM335X_v02.00.00.00/example-applications/matrix-gui-browser-2.0 目录下找不到PVR的初始化代码。
如何去掉?