On Jul 16, 2015 6:38 AM, "Robert Billing" <[email protected]> wrote: > > I have tried both bone-ubuntu-14.04.2-console-armhf-2015-06-11-2gb.img.xz and bone-ubuntu-14.04.2-console-armhf-2015-07-08-2gb.img.xz images on a beaglebone black with a 4D 4.3" LCD cape, and can't get a display. > > I know that the cape works because if I boot Angstrom I get a desktop. In this case xrandr reports the output as LVDS-0, which seems to be right. > > Whatever I do on Ubuntu xrandr reports the output as HDMI-0, even when explicitly disabled. The video is coming out on the HDMI port. > > During boot I see: > > Starting kernel ... > > [ 0.000961] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0' > [ 0.001021] This ensures that you still see kernel messages. Please > [ 0.001073] update your kernel commandline. > [ 3.702911] slave hdmi: could not get i2c > [ 3.999605] omap_voltage_late_init: Voltage driver support not added > [ 4.588016] bone_capemgr bone_capemgr: slot #0: No cape found > [ 4.648011] bone_capemgr bone_capemgr: slot #1: No cape found > [ 4.708074] bone_capemgr bone_capemgr: slot #2: No cape found > [ 5.748375] bone_capemgr bone_capemgr: loader: failed to load slot-3 BB-BONE-LCD4-01:00A1 (prio 0) > * Starting Mount filesystems on boot[ OK ] > > > And I have edited uEnv.txt to what I think it should be. > > root@arm:~# cat /boot/uEnv.txt > #Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0 > > uname_r=4.1.1-ti-r2 > #dtb= > > ##BeagleBone Black dtb's for v4.1.x (BeagleBone White just works..) > > ##HDMI/eMMC disabled: > dtb=am335x-boneblack-overlay.dtb > > ##cape-universal > dtb=am335x-boneblack-universal.dtb > > ##wl1835 > dtb=am335x-boneblack-wl1835mod.dtb > > ##replicape > dtb=am335x-boneblack-replicape.dtb
By doing this you are forcing the replicape, uncomment only one.. 'am335x-bone black cover lay.dtb' > > cmdline=coherent_pool=1M quiet video=HDMI-0:d video=LVDS-1:640x480@60 > > #In the event of edid real failures, uncomment this next line: > #cmdline=coherent_pool=1M quiet video=HDMI-A-1:1024x768@60e > > ##Example v3.8.x > #cape_disable=capemgr.disable_partno= > #cape_enable=capemgr.enable_partno= > > ##Example v4.1.x > #cape_disable=bone_capemgr.disable_partno= > #cape_enable=bone_capemgr.enable_partno= > > ##enable BBB: eMMC Flasher: > ##make sure, these tools are installed: dosfstools rsync > #cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh > > Is it possible to get the LCD working on the current Ubuntu? > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
