[mythtv-users] Unable to control a DCT700 cable box
Jim Hirsch
mythlists at fourhirschs.com
Sun Mar 2 01:52:09 UTC 2008
Douglas Hitchcock wrote:
> This is a dupe from the lirc list, but I'm desperate here!
>
> My mythtv computer has been out of service for almost 3 weeks now, and
> I just have no other trouble shooting ideas, I'm completely stuck.
> All the searching I've done, I only seem to find people having
> problems with the 0 key. I am having problems with every key.
>
> I bought a dual headed serial IR blaster from irblaster.info
> <http://irblaster.info>. I'm just trying to get one box working
> before I try tackling two.
>
> I am using mythbuntu. I followed these documents
>
> https://help.ubuntu.com/community/InstallLirc/Gutsy
> https://help.ubuntu.com/community/Motorola_DCT700_Channel_Change_Script
>
> My lirc_serial module is loaded, lircd is running, and when I try and
>
> irsend SEND_ONCE DCT700 info
>
> or power, or numbers, or any key at all, with the irsend command or
> the perl or python change channel scripts, I get no errors, but the
> box does not respond. I have both blasters taped right above the eye,
> and I've repositioned them a thousand times. I've tried it on two
> seperate DCT700 boxes. I did the camera trick where I watch the
> blasters when I send an irsend command, and I saw the purple light.
> So the blasters work, something is sending, but it's not have any effect.
>
> I live in Chicago and have RCN cable. Usually these DCT700 howtos are
> associated with Comcast. Could the boxes be different? They don't
> look special. I really am out of ideas and pleading for new ideas to try.
>
> here are my config files:
>
>
> lircd.conf
>
>
> # this config file was originally generated
> # using lirc-0.6.6(serial) on Fri Mar 28 22:46:44 2003
> # modified by hand on Sunday Jul 17 00:12:00 2005
> #
> # contributed by rob scullion
> # based on the DCT2000 file contrib'd by shane bradley
> #
> # brand: Motorola
> # model no. of remote control: ? - Comcast badged
> # devices being controlled by this remote: DCT2524/1612
> #
> # Note: The "ON DEMAND" button on the Comcast
> # badged remote just sends a "1" followed by
> # an "ok/select" and is thus not included in
> # this config file.
>
>
> begin remote
> name DCT700
> bits 16
> flags SPACE_ENC|CONST_LENGTH
> eps 30
> aeps 100
>
> header 9036 4424
> one 556 2185
> zero 556 4424
> ptrail 556
> gap 100025
> toggle_bit 0
>
>
> begin codes
> power 0x000000000000AFF9
> rew 0x00000000000087F7
> play 0x00000000000027FD
> ffwd 0x00000000000047FB
> stop 0x000000000000C7F3
> pause 0x00000000000007FF
> rec 0x00000000000073FC
> skipback 0x000000000000C3F7
> mydvr 0x00000000000043FF
> live 0x00000000000083F0
> pageup 0x000000000000A3F3
> pagedown 0x00000000000023FB
> a_lock 0x00000000000097F6
> b_day- 0x00000000000063FD
> c_day+ 0x000000000000E3F5
> up 0x000000000000D3F6
> down 0x00000000000053FE
> left 0x00000000000093F1
> right 0x00000000000013F9
> ok/select 0x00000000000077F8
> guide 0x000000000000F3F4
> info 0x00000000000033FA
> menu 0x00000000000067F9
> exit 0x000000000000B7F4
> help 0x000000000000B3F2
> last 0x00000000000037FC
> vol+ 0x0000000000004FF3
> vol- 0x0000000000008FFB
> mute 0x0000000000000FF7
> fav 0x00000000000057FA
> ch+ 0x0000000000002FF5
> ch- 0x000000000000CFFD
> 1 0x0000000000007FF0
> 2 0x000000000000BFF8
> 3 0x0000000000003FF4
> 4 0x000000000000DFFC
> 5 0x0000000000005FF2
> 6 0x0000000000009FFA
> 7 0x0000000000001FF6
> 8 0x000000000000EFFE
> 9 0x0000000000006FF1
> 0 0x000000000000FFFF
> tv/vcr_input 0x000000000000D7F2
> hdzoom_enter 0x000000000000FDFC
> pnp-swap 0x0000000000003BF2
> end codes
>
> end remote
>
>
> hardware.conf:
>
>
> # /etc/lirc/hardware.conf
> #
> #Chosen Remote Control
> REMOTE="Home-brew (16x50 UART compatible serial port)"
>
> # Arguments which will be used when launching lircd
> LIRCD_ARGS=""
>
> #Don't start lircmd even if there seems to be a good config file
> #START_LIRCMD=false
>
> #Try to load appropriate kernel modules
> LOAD_MODULES=true
>
> # Run "lircd --driver=help" for a list of supported drivers.
> DRIVER=""
> # If DEVICE is set to /dev/lirc and devfs is in use /dev/lirc/0 will be
> # automatically used instead
> DEVICE=""
> MODULES="lirc_dev lirc_serial"
>
> # Default configuration files for your hardware if any
> LIRCD_CONF=""
> LIRCMD_CONF=""
>
>
> /etc/modules.d/lirc:
>
> #COM1 equivalent, /dev/ttyS0
> options lirc_serial irq=4 io=0x3f8
> #COM2 equivalent, /dev/ttyS1
> #options lirc_serial irq=3 io=0x2f8
> ------------------------------------------------------------------------
>
> _______________________________________________
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> mythtv-users at mythtv.org
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>
My own blaster stopped working a few weeks ago also. I also use an
irblaster.info blaster but the single headed one. I have just yesterday
been able to fix my own problem.
http://www.linux.com/forums/topic/1192
This link gave me my answer. A recent kernel has added a serial driver
which is conflicting with the lirc serial blaster. I understand you are
using mythbuntu. My system is fedora. But the symptoms were identical. I
would see the blasters LED blinking. No control on the cable box. I have
now added the "setserial /dev/ttyS0 uart none" into my systems startup
and I now have IR blaster working again.
So give this a look. I hope it helps.
Jim
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