I have the following hardware for myth:

AMD 1.15Ghz, 256M ram
40G harddisk
Leadtek win 2000xp expert tv turner card
on board via sound card

After reading mythtv doc and others I still have these problem with my turner card. I have been able to watch tv with xawtv but not with mythtv.
But has no sound. I can listen to cd with the cdrom sound cable to the motherboard. I unplug the cdrom cable and plug the sound cable from the tv card to the motherboard. But still have no sound.

When I use mythtv, there is only green blank screen and noise of the harddisk storing data.

I am in Australia. I have the set up the video source to au and device to /dev/video, sound to /dev/dsp.

Would be much appreciate if someone can point me to diagnose the problem.

Cheers
David Kwok

Less I'm mistaken, the "expert" doesn't work with Linux.

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cesman

When the source is open, the possibilities are endless!

It does, I think since xawtv is working. The driver used is cx88xx driver. You mean mythtv does not support it?

I think he was remembering someone who was trying to use it with the bttv driver before. if it works with xawtv then it should work with mythtv.

more than likely to get sound you will have to use the cable that goes to the line in on the sound card. not one that plugs directly to the motherboard.

as for the green screen do some searching, it's been discused quite a bit, but I can't remember what all the possible causes are off the top of my head.

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Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

When I turn on the mythtv, is there any vital sign to see if it is getting the right device, etc?

it's going to use whatever device you assigned it to during the setup.

_________________
Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

Is there any way to see why mythtv is not working in this case?

not really. my suggestion would be the same search the forums for green screen or green or something like this. there are several causes for this, my gut would tell me it is something to do with either pal or resolutions, but I've not worked with pal and the forum posts would help you more.

_________________
Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

Its any way some one can help me install KnoppMyth step by step, I'd try to install it for a week and I can't make it run, when I reboot my computer with only Lunix in it, I tipe "TV" and <Enter> and it freeze with a pinguin on the top right.

I'm runing the PVR with Fendora Core and;
Pentium 4 2.8E GHZ
Intel BOXD865PERLL
SEAGATE SERIAL ATA150 120GB
ATI RADEON 9600 PRO 256MB
WINTV-PVR-250MCE
SONY DWU18A 8x DVD+-RW
CRUCIAL/MICRON 512MB PC3200 400MHZ

Thanks

autoinstall won't work with sata you might be able to use manual install, but that might not even work, because many sata drivers are not included in the knoppmyth kernel yet.

_________________
Have a question search the forum and have a look at the KnoppMythWiki.

Xsecrets

Currently no SATA modules are in the kernel. R5 will have the SATA support, but it certainly won't be ready in a week.

_________________
cesman

When the source is open, the possibilities are endless!

Your pretty lucky, normaly cesman wont comment on timeline for R5..

_________________
cesman

When the source is open, the possibilities are endless!

I have the exact same problem with my machine and the current version of Knoppmyth.
My screen is green when I try and watch TV with Myth. Everything else works (the program guide, Weather, CD tunes, but no TV. So I decided to test my card this weekend with Mandrake 10 and 10.1 and iI tried XAWTV and Xine and the video works, but I get no sound This is interesting because I would have guessed that it would have been the opposite. But this was not the case. My WinTV-FM (BT878 chipset with Phillips F1236 FM tuner) is plugged into the MIC connection on the onboard motherboard sound.. During my due dilligence I found a very valuable post at
http://www.linuxforum.com/forums/index. ... opic=97722

What this basically tells me is that the Kernel is having trouble even thought it is detecting
the BT878 chipset it is not quite detected correctly. More specifically the audio driver of the BT878 is conflicting with other boot up processes.

Here is what needs to be changed to fix this problem I think
#CONFIG_SND_BT87X is not set
needs to be changed to
CONFIG_SND_BT87X is not set

Unfortunately Debian and the Kernal is not my strong suit. I'm not sure if it iis possible to edit the modules.conf or if this is considered a Kernal recompile. I could use a little help to get this fixed. I have a lot of computer experience but not a lot in Debian. I have never recomipled the Debian Kernal before. and don't know exactly how to do it. I have recomplied Red Hat 7.1 so I get the general concept..

Here is my setup

Athlon 2700+
Biostar M7nCG
Nvidia Quadro
Crucial pc2100 256mg
WINTV -FM Model 44811

Well after about a week or so of fooling around with my knoppmyth setup I am pleased to have a solution to the green screen problem that plaged me for the past week. Basically everytime I tried to watch Live TV the screen was green with black static across the top fifth of the screen. However when I lauched XAWTV it showed one channel.

Athlon 2700
Corsair PC2100 256mb
WinTV FM model (BT878 Chipset Phillips F1236 FM tuner)
Biostar M7NCG motherboard

I pulled the Nvivia Quadro Card in favor of onboard GForce 4 MX built onto the board. I did this to try and isolate the issue but it really didn't make a difference. I installed the NVIDIA graphics driver with the command install-nvidia.sh which must be run as root (Ctl-ALT F1 to login and Ctl-ALT F7 to go return).

First, I checked the logs and they appear to be in good shape by checking the WINTV card and Sound Options for errors. With BT878 there are BTTV options instead of IVTV option. They are located in
/etc/mythtv/modules/bttv.

This site has a lot of good info to fix cards that are detected improperly
http://linux.bytesex.org/v4l2/bttv.html
Knoppmyth has the latest version of the driver so there was no need to update it.

As root check the following

cat /var/log/messages | less
cat /var/log/syslog | less
cat /etc/modules.conf | less

Lspci -v | less

cat grep /proc/pci
grep -rs sound-slot /etc*

So with the logs looking good I figured it was time rebuild the kernel.
In this case you just need to rebuild it you don't need to change it at all.

Exit Myth
Control-ALT F1
Log into the console as Root
Enter Root Password

cd /usr/src/
tar xvfj linux-2.4.25-chw.tar.bz2
make dep
make clean
make bzImage

Reboot the system
Close out myth
Open Xterm
type AUMIX or ALSAMIXER

Select the sound input that your plugged into and leave the volume for
that source off. (ie the red one MIC or the Blue One Line In). Double check that the mute is not on. The main volume is on at a halfway setting.
Launch Myth and test out Live TV. Good luck it worked for me....