Device tree overlay failed. Cannot overlay BB-BONE-LCD7-01 dtbo file.

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1

Hello, everyone. I have a LCD7 RGB screen. I wanted to use it in my BB-Black.
I added “capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN” to the uEnv.txt file. Then I typed “echo BB-BONE-LCD7-01 > $SLOTS”, but BB-Black replied “-sh: echo: write error: No such file or directory” to me. I am sure the dtbo file exists. Anyone could me?

2

What does dmesg | grep capemgr say about this? Maybe you forgot to reboot after typing into uEnv.txt?

3

In fact, I did reboot after typing into uEnv.txt.

4

Finally, I found the solution. Too faint. I should type “echo BB-BONE-LCD7-01:00A2 > $SLOTS” because it loads BB-BONE-LCD7-01:00A0.dtbo file by default if I leave out “00A2” but there just exist *00A2, *00A3, *00A4 files, no *00A0 and *00A1 files.

在 2014年3月5日星期三UTC+8下午1时16分35秒，zj_fighting写道：