[问答]

imx6q开发板该如何修改才能进行双显

问答对人有帮助，内容完整，我也想知道答案 0 lcd和hdmi单独进行显示时都正常，但是两路同时打开时只有指定到mxcfb0的设备有显示，mxcfb1就没有输出。 uboot中设置的环境变量是 mxcfb0=video=mxcfb0:dev=hdmi,1280x720M@60,if=RGB24,bpp=16 mxcfb1=video=mxcfb1:dev=lcd,CLAA-WVGA-HD,if=RGB24,bpp=16,int_clk 使用的是imx6q开发板，程序版本qt5.6，linux4.1.15 该如何修改才能进行双显？谢谢参照用户手册附录2的说明，使用 gst-launch-1.0 playbin uri=file:///forlinx/video/xm.mp4 video-sink="imxv4l2sink device=/dev/video16" & gst-launch-1.0 playbin uri=file:///forlinx/video/xm.mp4 video-sink="imxv4l2sink device=/dev/video18" & 测试可以同时在两个屏幕播放视频，但是正常启动系统就是显示不了。按照附录2的设置顺序，环境变量改为 mxcfb0=video=mxcfb0:dev=lcd,CLAA-WVGA-HD,if=RGB24,bpp=16,int_clk mxcfb1=video=mxcfb1:dev=hdmi,1280x760M@60,if=RGB24,bpp=16 启动后出现错误 imx6qsabresd login: [ 9.583107] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.589511] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 9.598668] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.605021] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 9.614939] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.621229] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 9.631335] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.637663] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 9.647121] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.653406] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 9.662590] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.668904] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 9.677991] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.684309] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 9.696732] imx-hdmi-audio imx-hdmi-audio: HDMI Video is not ready! [ 9.703014] imx-hdmi-audio imx-hdmi-audio: ASoC: can't open platform imx-hdmi-audio: -22 [ 10.015862] random: nonblocking pool is initialized 0
2022-1-11 06:51:32　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × liutiefu 该类别下有 26 个回答。邀请回答 ze55me 该类别下有 20 个回答。邀请回答 tigerwang711 该类别下有 20 个回答。邀请回答杀狼000 该类别下有 19 个回答。邀请回答 zhuzb0754 该类别下有 19 个回答。邀请回答冰箱洗衣机该类别下有 18 个回答。邀请回答 YYXIAO 该类别下有 18 个回答。邀请回答 mede1001 该类别下有 17 个回答。邀请回答安德森大该类别下有 17 个回答。邀请回答 CDCNKA 该类别下有 17 个回答。邀请回答 jjll652 该类别下有 17 个回答。邀请回答河神大人该类别下有 17 个回答。邀请回答熊本熊该类别下有 16 个回答。邀请回答 YOYOOO 该类别下有 16 个回答。邀请回答麻酱该类别下有 16 个回答。邀请回答世态薄凉该类别下有 16 个回答。邀请回答 Green_LJ 该类别下有 15 个回答。邀请回答江左盟该类别下有 15 个回答。邀请回答 wang21cj 该类别下有 15 个回答。邀请回答 dfgsdf 该类别下有 15 个回答。邀请回答举报陈霞相关推荐 • 请问IMX6Q四核开发板，怎么做到分核运行？ 1103 • 请问kernel-4.9.88对应的mfgtool不可以适配imx6q吗？ 1207 • 请问imx6Q的开发板能升级成ubuntu14.04吗？ 461 • 如何在imx6q 开发板上新添加一个物理按键 4329 • iMX6开发板注册设备及测试 1794 • iMX6Q u-boot无法在iMX6DL上启动是否正常？ 562 • imx6dl芯片与imx6q芯片互换启动无反应请问是什么问题呢 595 • iMX6开发板设备树文件分析 3048 • imx6q开发板插入pcie2.0的卡开机后dmesg报错该如何解决呢 2194 • 请问imx6q怎么使用GPU和2D图像加速功能？ 2675 3个回答

答案对人有帮助，有参考价值 0 linux4.1.15上只实现了在两个屏上播发视频，这种方法是测试过，应该不会出现您说的情况，如果uboot设置没有问题，是不是接触不好，才出现不能显示和报错的情况

2022-1-11 11:16:04 评论举报邢洋

答案对人有帮助，有参考价值 0 视频可以同时播放，接触应该没问题。设置uboot后，无法同时在lcd和hdmi输出一样的界面。在linux4.1.15没有试过lcd+hdmi双屏显示吗？

2022-1-11 11:16:13 评论举报赵护林