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BB-VIEW 7" touchscreen display blank

Former Member

I seem to be having difficulty getting a just purchased BeagleBone Black and BB 7" Touchscreen display to work. I wonder if someone could give some help.

 

Followed the hardware installation instructions in the manual, which are easy enough. After fiddling around with Debian, in which I could get HDMI OK and all else seemed to work fine, Went looking for the TI Angstrom demo. After working through the Element14 links I dug BBB-eMMC-flasher-2013.09.04.img out from BeagleBoard.org - latest-images. I am still presented with a blank screen.  Is this the correct image?

 

It shows the cape not being recognised.

# more /sys/devices/bone_capemgr.*/slots

0: 54:PF---

1: 55:PF---

2: 56:PF---

3: 57:PF---

4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G

5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI

 

Followed instructions in the BB-View Cape user manual with  no effect (the images suggested are actually a later date than the latest images from beagleboard.org, but cannot find them on Element14's site).

 

Back to Debian. After updating the kernel as suggested in the Debian Howto, and setting in uEnv.txt:

optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN capemgr.enable_partno=BB-VIEW-LCD7-01

 

got the same result - cape not recognised, similar to here BB View + BeagleBone Board.

 

That seems to be the end of my competence. Any suggestions?

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    Back to the start to try to make some sense out of this.

     

    Put the Angstrom distro BBB-eMMC-flasher-2013.09.04.img.xz from BeagleBoard.org - latest-images onto a microsd card and flashed to eMMC. After several tries got it to boot up OK.

     

    The web page element14: BB View LCD Cape Software Download Centre[1] contains images that are patched for the BB-VIEW, but on opening they appear to be compiled kernel. Unfortunately there is no documentation provided to explain how to use these, I'm not a Linux kernel hacker so I googled around to get some ideas. What i ended up doing was to take the Angstrom image, modify xorg.conf with 50-tslib.conf and scp'd it all across. Then

     

    # opkg install xf86-input-tslib_0.0.6-r17.1_armv7a-vfp-neon.ipk

    # cp -f uImage /boot

    # cp -f *.dtb /boot

    # tar -xvf kernel_modules.gz -C /

    # cp -f xorg.conf /etc/X11/

    # sync

    reboot

     

    The BBB booted up OK but nothing on the BB-VIEW screen. Screen lights up but shows no output.

     

    Still hoping someone might come to the rescue :-)

     

    EDIT I'm really not with it this week. It's described in the manual and requires a dtb file to be renamed to recognise the 7" display. Sorry everyone. Angstrom came up on the screen to a command-line login, but no desktop. Didn't pursue it further.

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    Back to the start to try to make some sense out of this.

     

    Put the Angstrom distro BBB-eMMC-flasher-2013.09.04.img.xz from BeagleBoard.org - latest-images onto a microsd card and flashed to eMMC. After several tries got it to boot up OK.

     

    The web page element14: BB View LCD Cape Software Download Centre[1] contains images that are patched for the BB-VIEW, but on opening they appear to be compiled kernel. Unfortunately there is no documentation provided to explain how to use these, I'm not a Linux kernel hacker so I googled around to get some ideas. What i ended up doing was to take the Angstrom image, modify xorg.conf with 50-tslib.conf and scp'd it all across. Then

     

    # opkg install xf86-input-tslib_0.0.6-r17.1_armv7a-vfp-neon.ipk

    # cp -f uImage /boot

    # cp -f *.dtb /boot

    # tar -xvf kernel_modules.gz -C /

    # cp -f xorg.conf /etc/X11/

    # sync

    reboot

     

    The BBB booted up OK but nothing on the BB-VIEW screen. Screen lights up but shows no output.

     

    Still hoping someone might come to the rescue :-)

     

    EDIT I'm really not with it this week. It's described in the manual and requires a dtb file to be renamed to recognise the 7" display. Sorry everyone. Angstrom came up on the screen to a command-line login, but no desktop. Didn't pursue it further.

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