William and Sam,

Just a newb trying to follow along and learn, byt he serial debug cable you 
mean the FTDI 3.3V serial-USB cable with the six pin  header? It seems this 
one gives insight at a lower level than the straight mini-USB port...

Sorry for my gross ignorance, but I am working on that...

Regards,

Jack

On Thursday, May 7, 2015 at 6:14:47 PM UTC-7, Sam wrote:
>
> Don't be sorry! I appreciate the help. 
> It's a bit weird. Especially since no one else seems to be having the 
> issue. 
> I'll order myself a cable and continue the investigation. 
>
> On Fri, 8 May 2015 9:59 am William Hermans <yyr...@gmail.com <javascript:>> 
> wrote:
>
>> Sorry I couldn't help more Sam . . .
>>
>> This problem seems kind of obscure to me. I do not remember reading 
>> about, or hearing of a similar issue. If you did happen to buy, or borrow a 
>> serial debug cable. You could run both configurations, logging the boot log 
>> output to file. Then run a diff on them to see if anything stands out.
>>
>> You can also try this with dmesg . . . and . . . just poking around 
>> myself . . .
>>
>> debian@beaglebone:~$* dmesg > ~/file*
>> debian@beaglebone:~$ *nano ./file*
>>
>> *[    3.590829] bone-pinmux-helper P8_27_pinmux.18: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.598760] bone-pinmux-helper P8_28_pinmux.19: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.606640] bone-pinmux-helper P8_29_pinmux.20: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.614507] bone-pinmux-helper P8_30_pinmux.21: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.622286] bone-pinmux-helper P8_31_pinmux.22: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.630087] bone-pinmux-helper P8_32_pinmux.23: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.637903] bone-pinmux-helper P8_33_pinmux.24: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.645782] bone-pinmux-helper P8_34_pinmux.25: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.653558] bone-pinmux-helper P8_35_pinmux.26: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.661459] bone-pinmux-helper P8_36_pinmux.27: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.669453] bone-pinmux-helper P8_37_pinmux.28: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.677472] bone-pinmux-helper P8_38_pinmux.29: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.685519] bone-pinmux-helper P8_39_pinmux.30: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.693538] bone-pinmux-helper P8_40_pinmux.31: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.701634] bone-pinmux-helper P8_41_pinmux.32: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.709755] bone-pinmux-helper P8_42_pinmux.33: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.717978] bone-pinmux-helper P8_43_pinmux.34: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.726225] bone-pinmux-helper P8_44_pinmux.35: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.734519] bone-pinmux-helper P8_45_pinmux.36: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.742802] bone-pinmux-helper P8_46_pinmux.37: Set initial pinmux 
>>> mode to hdmi*
>>> *[    3.756370] bone-pinmux-helper P9_19_pinmux.46: Set initial pinmux 
>>> mode to i2c*
>>> *[    3.764617] bone-pinmux-helper P9_20_pinmux.47: Set initial pinmux 
>>> mode to i2c*
>>> *[    3.777412] bone-pinmux-helper P9_25_pinmux.52: Set initial pinmux 
>>> mode to audio*
>>> *[    3.789016] bone-pinmux-helper P9_28_pinmux.55: Set initial pinmux 
>>> mode to audio*
>>> *[    3.798144] bone-pinmux-helper P9_29_pinmux.56: Set initial pinmux 
>>> mode to audio*
>>>
>>
>> I wonder if somehow pinmux-helper could somehow be causing issues here ?
>>
>> On Thu, May 7, 2015 at 2:01 PM, Sam Thomas <samthoma...@gmail.com 
>> <javascript:>> wrote:
>>
>>> I am pretty sure it isn't a pin conflict since I can remote desktop in 
>>> as root and access the mounted drives no problem. 
>>>
>>> Something strange is happening to my permissions as soon as I run 
>>> uEnv.txt
>>>
>>> I have checked my sudoers file and nothing in there has changed.
>>>
>>> Unfortunately I don't have a usb to serial cable.
>>>
>>> Thanks for your help William
>>>
>>> On Thu, 7 May 2015 at 08:49 William Hermans <yyr...@gmail.com 
>>> <javascript:>> wrote:
>>>
>>>> So, the comment by me above "sounds like a pin conflict", doesn't mean 
>>>> I think for a second that it *is* a pin conflict. I just meant that it is 
>>>> a 
>>>> "reaction" one might expect from having a pin conflict . . . the sdcard, 
>>>> and hdmi should be able to work properly at the same time.
>>>>
>>>> I seem to recall reading something about a udev rule fix a long time 
>>>> back - For situations like these but . . . What I am "remembering" is 
>>>> rather vague in my mind at the moment.
>>>>
>>>> On Wed, May 6, 2015 at 3:40 PM, William Hermans <yyr...@gmail.com 
>>>> <javascript:>> wrote:
>>>>
>>>>> Sounds like a possible pin conflict but . . .
>>>>>
>>>>> I was reading an ARCHLinux post concerning a similar problem( but on 
>>>>> PC ), and the person fixed it by making some additions to the PAM 
>>>>> configuration file.
>>>>>
>>>>> https://bbs.archlinux.org/viewtopic.php?id=167947
>>>>>
>>>>> ( post #5 ).
>>>>>
>>>>> Not sure that would fix the problem, but might be worth a try. 
>>>>> However, if you remove the "quiet" from the optarg variable, and you have 
>>>>> a 
>>>>> serial debug cable. The output I believe should be more verbose. You can 
>>>>> also look through dmesg, and /var/log/messages to see if you can spot 
>>>>> anything obvious.
>>>>>
>>>>> On Wed, May 6, 2015 at 3:11 PM, Sam <samthoma...@gmail.com 
>>>>> <javascript:>> wrote:
>>>>>
>>>>>> Hey again William!
>>>>>>
>>>>>> I am just using the default debian user for now so I have not messed 
>>>>>> with the sudoers file.
>>>>>>
>>>>>> If I comment out "optargs=quiet 
>>>>>> capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN" in my uEnv.txt 
>>>>>> then 
>>>>>> my usb and uSD is automounted correctly. So something strange is 
>>>>>> happening 
>>>>>> when HDMI is disabled.
>>>>>>
>>>>>> I am accessing the BBB with xrdp which may also have something to do 
>>>>>> with it. 
>>>>>>
>>>>>> I wonder if there somewhere else that I can run the command to 
>>>>>> disable the hdmi that is not on external memory. See if that helps?
>>>>>>
>>>>>> Failing that I could try running debian from the uSD. At least that 
>>>>>> would give me all the memory I need.
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Wednesday, 6 May 2015 19:44:30 UTC+10, Sam wrote:
>>>>>>>
>>>>>>>
>>>>>>> Hey Everyone!
>>>>>>>
>>>>>>> I want to use my HDMI pins for other purposes.
>>>>>>>
>>>>>>> I have added a uEnv.txt to my bone that contains
>>>>>>> "optargs=quiet capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN"
>>>>>>>
>>>>>>> when i cat the slots
>>>>>>> debian@beaglebone:~$ cat /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-- Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI
>>>>>>>  6: ff:P-O-- Bone-Black-HDMIN,00A0,Texas Instrument,BB-BONELT-HDMIN
>>>>>>>
>>>>>>> Unfortunately when I click a mounted drive in LXDE I get an error 
>>>>>>> "Not Authorised"
>>>>>>>
>>>>>>> I can access the drives as root though. 
>>>>>>>
>>>>>>> Is something happening to the permissions of the mounted drives when 
>>>>>>> uEnv.txt is run?
>>>>>>>
>>>>>>> Cheers!
>>>>>>>
>>>>>>> Sam
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>  -- 
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>>>>>
>>>>>
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