HDMI和LVDS显示怎么设置

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HDMI和LVDS显示怎么设置

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sharpjison
Contributor II

硬件:imx6q

bootloader : barebox

内核:linux-4.1.15,设备树式系统启动

HDMI接口连接普通的电脑显示器

LVDS 分辨率是800 X 600

现在要实现双屏显示,需要怎么设置

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weidong_sun
NXP TechSupport
NXP TechSupport

Hello Sharp,

     In Android user's guide, you can find some parameters that should be configured in u-boot environment. If you want to dual display, the following parameters should be added to u-boot environment variable(bootargs).

(1) If you are using android

video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb2:off

(2)If you are using ubuntu

we donot have the multiple display feature supported yet in X11 on i.MX6. Other option is to use wayland-weston

see the link: https://community.nxp.com/message/348442 

Best Regards,

Weidong

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sharpjison
Contributor II

Hello Sun:

           

   我的HDMI接口只能在显示屏上显示800x480分辨率的图像,其他的分分辨率都不能显示。

   连接方式:HDMI接口通过一个HDMI转换VGA的转换器,然后连接显示器,显示器是电脑显示类型,显示器只能显示800x480的分辨率,我将uboot向内核中传递其他的分辨率参数,显示器就不能显示。

   这是什么原因造成的, 我使用的linux系统。

   

      Thanks !

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