imx8qm linux系统怎么实现lvds和HDMI双屏异显

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imx8qm linux系统怎么实现lvds和HDMI双屏异显

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wuguangnan110
Contributor I

各位好:

目前我们已经可以实现lvds和HDMI双屏同显,但是他们都是使用的同一个framebuffer,目前有方案实现lvds和HDMI双屏异显吗?

Hello, everyone.

At present, we can achieve double-screen co-display of LVDS and HDMI, but they are all using the same framebuffer. Is there a solution to achieve double-screen diffrent display of LVDS and HDMI?

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weidong_sun
NXP TechSupport
NXP TechSupport

Hello wuguangnan,

     内核中默认情况下,是双屏显示相同内容的。而双屏显示不同内容,是由客户上次应用来做的。内核中只管理两个显示设备,而应用中只需要把要显示的内容画在第二个设备上即可。

By default in the kernel, the same content is displayed on two screens. Double screen display of different content is done by the customer's application.
Only two display devices are managed in the kernel, and only the content to be displayed in the application needs to be painted on the second device.

Have a nice day!

BR,

Weidong

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hongxingyu1982
Contributor III

而应用中只需要把要显示的内容画在第二个设备上即可

            -------你好,请问这个该如何操作呢?

多谢

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