[mythtv-users] Trouble with VFD

[Eric Yanush]

> On Fri, Mar 19, 2010 at 1:07 AM, Eric Yanush <yanush2e at uregina.ca> wrote:
>>>>> Hi,
>>>>> 
>>>>> I having alot of trouble getting an antec veris elite vfd/ir combo to
>>>>> work
>>>>> under ubuntu karmic.
>>>>> I can get the ir portion to function with no problems, but cannot get
>>>>> any
>>>>> sign of life from the vfd.
>>>>> it has a device id of 0x0044
>>>>> 
>>>>> After configuring lirc and lcdproc I end up with a dmesg output of :
>>>>> 
>>>>> [   21.408199] lirc_imon: send_packet: packet tx failed (-32)
>>>>> [   21.408203] lirc_imon: vfd_write: send packet failed for packet #2
>>>>> [   21.656487] lirc_imon: send_packet: packet tx failed (-32)
>>>>> [   21.656490] lirc_imon: vfd_write: send packet failed for packet #1
>>>>> [   22.279698] lirc_imon: send_packet: packet tx failed (-32)
>>>>> [   22.279701] lirc_imon: vfd_write: send packet failed for packet #1
>>>>> [   22.520654] eth0: no IPv6 routers present
>>>>> [   22.780632] lirc_imon: send_packet: packet tx failed (-32)
>>>>> [   22.780635] lirc_imon: vfd_write: send packet failed for packet #5
>>>>> [   22.903530] lirc_imon: send_packet: packet tx failed (-32)
>>>>> [   22.903532] lirc_imon: vfd_write: send packet failed for packet #2
>>>>> [   23.277822] lirc_imon: send_packet: packet tx failed (-32)
>>>>> [   23.277826] lirc_imon: vfd_write: send packet failed for packet #2
>>>>> [   23.778395] lirc_imon: send_packet: packet tx failed (-32)
>>>>> [   23.778399] lirc_imon: vfd_write: send packet failed for packet #5
>> 
>>>>> 
>> 
>>>>> 
>> 
>>>>> if I try the echo 'Hello mythtv... command with any combination of
>>>>> lcdproc
>>>>> and lirc running, with the lirc_imon driver loaded i get:
>>>>> 
>>>>> -bash: /dev/lcd0: Permission denied
>>>>> 
>>>>> run either as user or as root.
>>>>> 
>>>>> Any ideas?
>>>> 
>>>> -32 is -EPIPE... No clue wtf would trigger that. I have the exact same
>>>> hardware in my own myth frontend box, works perfectly. What lcdproc
>>>> driver are you trying to use to drive it?
>>>> 
>>>> I have tried both lcdproc 0.5.2 and 0.5.3, with the imon driver, and the
>>>> lirc modules lirc_imon and lirc_dev
>> 
>>> I got nothin' then, that combo works perfectly here. Can you verify
>>> the device isn't faulty by spinning it up under Windows?
>> 
>> Works just fine under windows 7.
> 
> The 'permission denied' trying to write to /dev/lcd0 even as root
> sounds highly suspicious. Not sure what the fix would be though.
> 
> Just tried something... As a normal user, I get similar behavior. As
> root, I get:
> 
> # echo foo > /dev/lcd0
> -bash: /dev/lcd0: Device or resource busy
> 
> When you say "as root", you don't mean "sudo echo foo > /dev/lcd0", do
> you? Because that's *not* the same...
> 
> -- 
> Jarod Wilson
> jarod at wilsonet.com
> 

Sorry.. I do mean  sudo echo... 
I did try using sudo chmod 755 /dev/lcd0 and then sudo echo... and then I get the 
-bash: /dev/lcd0: Device or resource busy