Thread: Controlling MythTV with wireless keyboard only?

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  1. Default Controlling MythTV with wireless keyboard only? #1
    whatshisname is offline MythTV Friend in Training
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    Making progress thanks to fromans4.

    I have mythtv setup and running on my PC. Can only change channels using the STB remote.



    An elderly computer:

    Microstar, MS-6738 motherboard
    Phoenix bios version: 6.00 PG (09/22/2003)
    GeForce 6200 250mb video card
    512 mb RAM
    Local FIOS.
    Using PVR-150.
    S-Video from FIOS Set Top Box, an ADB-3800W, ADB-3800W advanced high definition | Advanced Digital Broadcast , to the PVR-150.

    For the moment, I'm trying to set up full navigation of MythTv using my wireless keyboard,a Dell re-branded Logitech iTouch cordless Keyboard, Model Y-RB6.

    I've:

    Checked "Always use browse mode when changing channels in livetv"
    Checked "Use select to change the channel in the program guide"
    Checked "Allow channel jumping in guide"

    I can go to the Program Guide with "m" and selecting "Program Guide" in the pop up menu. I navigate with the arrow keys, and try to choose a channel by clicking "x" while the channel is selected.

    Nada.

    Or is if click "m" while on the program, nothing.

    Same if I click "enter" or "space".

    Also nothing if I'm viewing a program and click a channel number.

    I've also tried following the number with "enter".

    In short, Nothing I do will change the channel with my wireless keyboard while I'm in MythTV.

    What am I missing?

    Do I have to set up lirc to manipulate MythTV with a wireless keyboard? I've scoured the wiki and have found plenty of discussion about about lirc but not much about navigating MythTV with a wireless keyboard only.

    Thanks.
    Last edited by whatshisname; 01-20-2010 at 03:51 AM.
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  2. Default #2
    fromans4's Avatar
    fromans4 is offline Cornerstone of the Community
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    That's very strange. Have you checked your frontend and backend logs to see if they show any hints as to what is happening? You might want to post your logs, maybe someone here can see something?

    FYI - You should not have to do anything special to make this work. In the menu, navigate to the program and hit "enter", while watching TV simply type the numbers and hit enter. This function should have been about as intuitive as it gets.

    Good luck,


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  3. Default #3
    dknovick is offline Cornerstone of the Community
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    As fro' says, this should be a no brainer. I'm using a wireless keyboard and I can use the arrow keys to navigate, the enter key to move around, the spacebar, etc.

    I assume that the keyboard works outside of myth?


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  4. Default #4
    whatshisname is offline MythTV Friend in Training
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    Quote Originally Posted by fromans4 View Post
    FYI - You should not have to do anything special to make this work. In the menu, navigate to the program and hit "enter", while watching TV simply type the numbers and hit enter. This function should have been about as intuitive as it gets.
    Quote Originally Posted by dknovick View Post
    As fro' says, this should be a no brainer. I'm using a wireless keyboard and I can use the arrow keys to navigate, the enter key to move around, the spacebar, etc.
    I'm glad we all agree! It should be a no brainer.

    I assume that the keyboard works outside of myth?
    Absolutely.

    I did as suggested by fromans4. I opened a new set of logs, started up myth and set off to:

    "Watch TV" ,

    typed "7", OSD changed, channel didn't

    typed "m", Program Guide, <enter>, Sitting on "channel 7", down arrow, <enter> on "8*. OSD channel 8. TV didn't change

    typed "o". "down arrow" a couple of times. <enter> on "6". OSD changed. TV didn't.

    Now, from the logs I noticed these four lines (skipping the rest for the moment.):

    --snip --

    2010-01-20 20:50:22.950 Channel(/dev/video0) Warning: You have not set an external channel changing script for a composite or s-video input. Channel changing will do nothing.

    2010-01-20 20:50:39.068 Channel(/dev/video0) Warning: You have not set an external channel changing script for a composite or s-video input. Channel changing will do nothing.

    2010-01-20 20:51:03.194 Channel(/dev/video0) Warning: You have not set an external channel changing script for a composite or s-video input. Channel changing will do nothing.

    2010-01-20 20:51:15.540 Channel(/dev/video0) Warning: You have not set an external channel changing script for a composite or s-video input. Channel changing will do nothing.

    -- snip --

    So

    1) it appears the logs are saying I need a channel changer script.

    Trying to create one of these has been a bust. Setting up a channel changer script requires the existence of "/dev/lirc", not present on my machine because I haven't set up an IR blaster.

    For when I try to run "irrecord" to create my own channel changing script:

    -- snip --

    ~$: irrecord philips

    irrecord: could not get file information for /dev/lirc
    irrecord: default_init(): No such file or directory
    irrecord: could not init hardware (lircd running ? --> close it, check permissions)

    -- snip --

    There is no "/dev/lirc".

    But I do have a "/usr/sbin/lircd". But I've tried to run it by itself, with "start" and with "restart" but the prompt just returns with no error messages. "ps ax" never shows it started.

    So everything keeps coming back to getting the blasted keyboard to work. It doesn't help being so tantalizing close yet so frustratingly far away! That only makes me want to dig my heels in that much further.

    2) I've continued to research this and, taking a look at the Wiki, it says wireless keyboards can work but evidently not all of them? Compatible keyboards are listed here: Wireless Keyboards - MythTV

    Of course, my Dell rebranded Logitech Cordless Itouch keyboard, model Y-RB6 is not listed.

    So this is where I stand tonight.

    I confess to resisting getting an IR blaster and setting up a remote because 1) I don't have a remote for this PVR-150 and 2) programming a programmable remote has always been a pain and I'd just as soon dodge that frustration.

    Besides, I just plain like using the keyboard and it just seems like I'm ... almost ... there.

    Thanks fromans4 and dknovick for your help.
    Last edited by whatshisname; 01-21-2010 at 04:07 AM.


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  5. Default #5
    fromans4's Avatar
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    MythTV has to be able to send a command to your FIOS receiver to change channel somehow. This would normally be done via an IR Blaster. If your FIOS receiver supports changing channel via firewire or serial connection then those methods could be looked into as well, but an IR Blaster is probably your best bet. This definitely why you are experiencing your problems.


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  6. Default Which type IR Blaster to buy and where does it hook into the system? #6
    whatshisname is offline MythTV Friend in Training
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    Quote Originally Posted by fromans4 View Post
    MythTV has to be able to send a command to your FIOS receiver to change channel somehow. This would normally be done via an IR Blaster. If your FIOS receiver supports changing channel via firewire or serial connection then those methods could be looked into as well, but an IR Blaster is probably your best bet. This definitely why you are experiencing your problems.
    Thanks for all the help, fromans.

    I hope this will be my final question for this thread.

    I understand that I have to buy an IR blaster. I'm just not sure which type to buy and where it should plug into my system.

    My computer has a serial port. But my STB does not. There's a lot of talk on the forums about connecting an IR blaster through a serial port. While most of the discussions seem to indicate connecting to the STB, that detail isn't always made clear in the posts.

    The only port my STB has available for this type of thing is a USB port.

    So do I buy an IR blaster that connects to the STB, which seems to be the logical choice, or will a blaster that connects to my PC's serial port interact with the STB by virtue of the S-Video connection somehow?

    My STB is connected to my PVR-150 with an S-Video connector plus the yellow/white RCA connections for audio. The STB also has the Green/Blue/Red composite connectors as well as a coax and the aforementioned USB.

    Thanks.


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  7. Default #7
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    In some cases it is possible to connect your MythTV system to your STB via serial cable and using a script have MythTV send the channel change commands. If your STB doesn't have a serial connector then this method won't work of course. The IR Blaster would only need to connect to the MythTV system and how it connects is really not important, othet then your system has to support that. Most use either serial or USB. The IR blaster in turn sends the signal to your STB using an IR signal, this can be done either by transmition or using emiters which are wired to the IR Blaster and stick to the device being controlled, in your case the FIOS STB. Here are a couple of links to products I have tried and found to be reliable.

    CommandIR.com

    MythTV LIRC RS232 IR Blaster

    I am personally using the CommandIR myself because my backend has to control three STB's. It works very well and is nicely integrated with MythTV and linux.

    Good Luck,


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