Tivo losing sound - comes back after reboot

[sikkie]

The same happened on different machines.

[thomson]

A good example was when I have installed the palmod.o above (renamed previous palmod to old and then ftp'd the new palmod), I reboot. I end up having no sound at all. I then switched off and on again and the sound was back!

It's handy to have the PALMOD entries from within the /var/log/kernel log file as it could point out a fault in the codebase that could be fixed concerning the missing sound.

[finethen]

I have since last night been losing sound after recording starts and I also hear a wee "briip" immediately when the sound disappears. During watching live tv through TiVo sound can drop out but returns after changing channel. This is on my Philips TiVo. Let me know if I can help track a code problem with a log file.

[petestrash]

When the problem occurs copy the info you get when you try 'grep PALMOD /var/log/kernel'.

Peter.

[finethen]

OK this is what "grep PALMOD /var/log/kernel" yields and attached is the kernel file.


[TiVo [p0] ~]# grep PALMOD /var/log/kernel
Jan 1 00:00:21 (none) kernel: PALMOD: Tuner type=1
Jan 1 00:00:21 (none) kernel: PALMOD: Frequency table=1
Jan 1 00:00:21 (none) kernel: PALMOD: MSP3430G chip detected
Jan 1 00:00:21 (none) kernel: PALMOD: Using tuner type 1
Jan 1 00:00:21 (none) kernel: PALMOD: Horizontal resolution=544
Jan 1 00:00:21 (none) kernel: PALMOD: Horizontal shift=195
Jan 1 00:00:21 (none) kernel: PALMOD: S-Video saturation=85
Jan 1 00:00:21 (none) kernel: PALMOD: S-Video brightness=125
Jan 1 00:00:21 (none) kernel: PALMOD: S-Video contrast=67
Jan 1 00:00:21 (none) kernel: PALMOD: Composite saturation=85
Jan 1 00:00:21 (none) kernel: PALMOD: Composite brightness=125
Jan 1 00:00:21 (none) kernel: PALMOD: Composite contrast=67
Jan 1 00:00:21 (none) kernel: PALMOD: A/V input audio level=25
Jan 1 00:00:21 (none) kernel: PALMOD: Tuner saturation=85
Jan 1 00:00:21 (none) kernel: PALMOD: Tuner brightness=125
Jan 1 00:00:21 (none) kernel: PALMOD: Tuner contrast=67
Jan 1 00:00:21 (none) kernel: PALMOD: Tuner audio level=25
Jan 1 00:00:21 (none) kernel: PALMOD: Luminance delay=0
Jan 1 00:00:21 (none) kernel: PALMOD: Stereo detection threshold=16
Jan 1 00:00:21 (none) kernel: PALMOD: RF Output channel=60
Jan 1 00:00:21 (none) kernel: PALMOD: register_chrdev successful
Jan 1 00:00:21 (none) kernel: PALMOD Version 3.2 loaded successfully

[finethen]

I have swapped the drive out to an identical Darren modded machine and problem has dissappeared pointing to a hardware fault? Any ideas?

[petestrash]

Are both TIVo's using the same MSP3430G chip in thier tuner mod?

A failing 8v regulator can cause loss of sound.

Peter.

[finethen]

Yes they were both modded at the same time with the same components. How certain would you be re the regulator? Easy enough for an amateur to replace?

[thomson]

When the problem occurs copy the info you get when you try 'grep PALMOD /var/log/kernel'.

This is only handy if they are running one of my binaries (which were compiled with debug enabled) such as the one attached. Of course messing around with palmod.o can be a little risky and could cause a reboot loop unless you have a watchdog setup such as described here.

[sikkie]

I have installed the new Palmod.o for PAL-I, but the still get the same noises from time to time. The recordings also have patches of noise on it.
Not quite understanding the different PAL versions, I have the following questions:
1. How is it possible to even get sound with the sound band at 6 Mhz as to 5,5 Mhz for NZ or is the tuner good enough to pick it up?
2. Is the noise I am getting not the same as the other people were getting before the mod on the Oztivo forum and would it not disappear if I can get a compilation of both the PAL-I mod and the other mods done for the Oztivo?

Thanks a lot for all the work already done on this!