On Thu, Dec 17, 2015 at 11:08 PM, Riley Porter <[email protected]> wrote: > Hey guys I have edited my uEnv.txt and uncommented the disable hdmi and emmc > but a reboot does nothing? > > This is my kernel version: > > Linux beaglebone 3.8.13-bone79 #1 SMP Tue Oct 13 20:44:55 UTC 2015 armv7l > GNU/Linux > > This is my /boot/uEnv.txt file: > > Docs: http://elinux.org/Beagleboard:U-boot_partitioning_layout_2.0 > > uname_r=3.8.13-bone79 > #uuid= > #dtb= > > ##BeagleBone Black/Green dtb's for v4.1.x (BeagleBone White just works..) > > ##BeagleBone Black: HDMI (Audio/Video) disabled: > dtb=am335x-boneblack-emmc-overlay.dtb > > ##BeagleBone Black: eMMC disabled: > dtb=am335x-boneblack-hdmi-overlay.dtb > > ##BeagleBone Black: HDMI Audio/eMMC disabled: > dtb=am335x-boneblack-nhdmi-overlay.dtb > > ##BeagleBone Black: HDMI (Audio/Video)/eMMC disabled: > dtb=am335x-boneblack-overlay.dtb > > ##BeagleBone Black: wl1835 > #dtb=am335x-boneblack-wl1835mod.dtb > > ##BeagleBone Black: replicape > #dtb=am335x-boneblack-replicape.dtb > > ##BeagleBone Green: eMMC disabled > dtb=am335x-bonegreen-overlay.dtb
So "after" setting dtb 5 times, you landed on "dtb=am335x-bonegreen-overlay.dtb" which technically doesn't exist with "3.8.13-bone79"... Those "7" dtb settings are for v4.1.x... So for v3.8.x don't touch them "any" of the dtb's, just leave them commented out "#dtb=xyz"... > > > #In the event of edid real failures, uncomment this next line: > #cmdline=coherent_pool=1M quiet init=/lib/systemd/systemd > cape_universal=enable 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= > > ##Disable HDMI/eMMC (v3.8.x) > cape_disable=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN,BB-BONE-EMMC-2G > > ##Disable HDMI (v3.8.x) > cape_disable=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN > > ##Disable eMMC (v3.8.x) > cape_disable=capemgr.disable_partno=BB-BONE-EMMC-2G > > ##Audio Cape (needs HDMI Audio disabled) (v3.8.x) > cape_disable=capemgr.disable_partno=BB-BONELT-HDMI > #cape_enable=capemgr.enable_partno=BB-BONE-AUDI-02 After setting "cape_disable" 4 times, you've landed on "cape_disable=capemgr.disable_partno=BB-BONELT-HDMI" Does it makes sense now, how u-boot is setting those variables? > ##enable Generic eMMC Flasher: > ##make sure, these tools are installed: dosfstools rsync > #cmdline=init=/opt/scripts/tools/eMMC/init-eMMC-flasher-v3.sh > > cmdline=coherent_pool=1M quiet init=/lib/systemd/systemd > cape_universal=enable > > As you can see I pretty much disabled everything but when I: > > root@beaglebone:~# cat /sys/devices/bone_capemgr.9/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-- Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI > 6: ff:P-O-L Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN > > Everything is still applied? What am I missing here? So we end up with the eMMC & the HDMIN "loaded" while, "HDMI" disabled.. Exactly like you setup in /boot/uEnv.txt... Regards, -- Robert Nelson https://rcn-ee.com/ -- 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.
