I just installed R5A30.1 after having some poor results with R5A30. Whenever I try to view live tv over firewire all i get is a black screen. I have reviewed other posts referring to the black screen but they do not seem to fit the bill here. This was not a problem with R5A26.

After attempting to view live tv, I checked in /var/log/mythtv/mythbackend.log. Here is what I found:



I tried adding the mythtv user to the appropriate groups in /etc/groups, as others have suggested, the problem still persists.

Does anyone have any suggestions on how I might resolve this? Or if I need to post any further data in order to diganose this, please let me know.

Thanks,
Dan

I am having the same problem. Cecil asked if I could try recompiling but I haven't had a chance to try that yet, so you may want to start there.

I am also having the same problem. I read somewhere that libraw1394 changed the name of a function from v0.8 to 0.9.

Not sure if thats it and no where near my box to check.

Hope someone can figure this out.

Guinea pig up?

_________________
cesman

When the source is open, the possibilities are endless!

If recompiling is what it takes, I will give it a shot. Should I be pulling a snaptshot from subversion or was the source loaded. I don't have a lot of time right now, but I will take a look at this more tonight.

If someone is willing, please post a brief summary of the steps involved. I have not looked into compiling myth on my own yet as I have always been using the knoppmyth distro.

Thanks,
Dan

I tried re-compiling the myth source, but I seem to have run into an error. Everything seemed to have compiled and installed correctly. I started up app and, again, everything seems to have worked correctly. When I tried watching live tv, I received a popup stating that the frontend could not talk to the backend.

To perform this, I installed the following: build-essential, g++-3.4, gcc-3.4, libttf-dev, libqt3-mt-mysql, libqt3-mt-dev, libxvmc-dev, fakeroot, debhelper, autoconf, automake1.8, libxxf86vm-dev. This gave me a sufficient build environment.

Here is how I compiled Myth:
CXX=g++-3.4 CC=gcc-3.4 ./configure --enable-xvmc --enable-opengl-vsync --enable-lirc --enable-firewire
CXX=g++-3.4 CC=gcc-3.4 qmake mythtv.pro
CXX=g++-3.4 CC=gcc-3.4 make
CXX=g++-3.4 CC=gcc-3.4 make install

On the right path?


After inspecting the mythbackend.log further it seems that the mythbackend is not starting as the logs have not rolled over to today's date. Could I have installed myth incorrectly?

Thanks for any help.

Dan

You should not have to install an additional packages to recompile MythTV (period). You can simply untar the source that is in /usr/src, apply the diff that is in /usr/src and dpkg-buildpackage -us -uc -b. No response for a guinea pig, I guess no one wants to work with me on this...

_________________
cesman

When the source is open, the possibilities are endless!

I will be a guinea pig and work with you, I won't be able to give this a shot tonight but I will first thing in the morning.

Sorry about this. I thought I was being the guinea pig, but I went in the completely wrong direction, according to cesman's post. I ended up reverting back to R5A26 so that I could get my myth box back up and running. I would like to learn more about the build process. Cesman, if you are willing, could you post more detailed instructions on re-compiling myth on knoppmyth.

Thanks.

No, as there are already instructions on the forum for building...

_________________
cesman

When the source is open, the possibilities are endless!

This is an easy fix to the original post. In mythtv-setup, for Tuner, change from Point-to-Point to Broadcast.

That should do it.

Now, if you answer me how to get myth working after crashing.

With R5A26, RCN, DTC-6200 and a cheapo StarTech pci1394_4 I had no difficulties (although I didn't test the HD channels yet)

With R5A30.2 No luck, I also get the 15 second error. However in killing and restarting the backend it (the firewire) does in fact switch the station on the DTC-6200. Point to point and broadcast make no difference, no video. I have been using port node 0,1.

Be sure to run 'plugreport' and fine out which node the firewire is connected to. And be sure to change from Point-to-Point to Broadcast.

I am running R5A30.1 and am not having luck getting firewire to work. when i plug the cable box in, dct-6200, i get the following error:




the /dev/raw1394 is there but i cannot get test-mpg2 to work correctly. it is missing certain packages with the libiec61883-utils. apt-get will not retrieve libiec61883-utils. should i not worry about the test-mpg2 and try to just get firewire to work within mythtv or should i make sure that the hardware works at the lower level by using the test-mpg2 utility?

For gentoo, i had to use the exmples use flag in order to get the test-mpeg2 utility, otherwise, id have to extract from tarball.