HDMI转VGA config修改成功,发个帖
config见附件附件 hdmi2vga ??这个本身有什么需要配置的吗? 你当初遇到了什么问题???
同问,为何需要配置呢 额,,,,不好意思忘了说了,本人万博网页版登陆页派小白。上次贴了个VGA线的网址被版主删了,就没敢写东西了。买了根HDMI转VGA的线,用在万博网页版登陆页派上,刚开始死活点不亮显示器(比较老的显示器没有dvi接口),后来在版上看了好多大家的帖子,终于弄好了,想和大家分享下。呵呵。 具体说说是怎么做的,我的显示器也没有hdmi线 指尖焰火 发表于 2013-3-4 10:52 static/image/common/back.gif
具体说说是怎么做的,我的显示器也没有hdmi线
就是SD卡写完系统(windows下),不要直接卸载,直接在我的电脑里点击打开SD卡,里面大概有70M左右的分区是放boot的,将config.txt文件直接复制到这里,覆盖原来config.txt,就可以了;要是直接卸载sd卡,再在windows下就打不开了(我的是这样,呵呵)。要远程登录万博网页版登陆页派,将config替换或者直接按照新config修改了。我测试的结果就是这样。希望有用。 过来学习下! huangxiaodang 发表于 2013-3-4 14:01 static/image/common/back.gif
就是SD卡写完系统(windows下),不要直接卸载,直接在我的电脑里点击打开SD卡,里面大概有70M左右的分区 ...
恩 多谢指点 谢谢! huangxiaodang 发表于 2013-3-4 14:01 static/image/common/back.gif
就是SD卡写完系统(windows下),不要直接卸载,直接在我的电脑里点击打开SD卡,里面大概有70M左右的分区 ...
祝贺你的成果。
能具体说说你用的连接线吗?比如生产厂家、品牌、价格、可以在哪买到等等。
另外,看过一些帖子,说hdmi转vga的连线,分为“有源”、“无源”两种,如果使用“无源”的,会损坏板子等等。
是这么回事么?
谢谢! 本帖最后由 lawme 于 2013-3-6 06:37 编辑
lawme 发表于 2013-3-6 04:47 static/image/common/back.gif
祝贺你的成果。
能具体说说你用的连接线吗?比如生产厂家、品牌、价格、可以在哪买到等等。
HDMI->VGA Cables HDMI to VGA cables do not work! They rely on logic incorporated in a video card that isn't available in a PI.Somehow such a video card outputs analog signal on the otherwise purely digital HDMI connector, that seems to be the only way for it to work.But normally HDMI cables never carry analog signals and the PI surely doesn't output analog signals either, almost no HDMI output device does, as its completely against HDMI specifications.
HDMI->VGA converter boxes HDMI to VGA converters do work, they convert the digital serial data streams from HDMI and using complex logic, and digital to analog converters they convert the HDMI signal to the analog signals needed for VGA, and sometimes also convert HDMI audio to an analog stereo signal. But note that if they feed off the PI it can cause a problem, as the PI only is designed to provide about 50mA to the (HDMI or DVI-D) monitor, and these adapters use >200mA, while the absolute maximum the PI can let through is 200mA.These adapters also thus use about half the energy that the PI (without USB devices) uses.Therefore its much better to use an adapter that has an external power input. Alternatively there are HDMI dongles (male to female HDMI adapters) that have a barrel input connector to feed the adapter with.
上面说的意思,hdmi-vga简单的连接线(cable),肯定不能使用;能用的是有电路板的适配器(adaptor),在这里称作“HDMI->VGA converter box”。
这种适配器,性价比太低,还不如直接买个有hdmi口的显示器。那种“一线屏”,才二、三百元。
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