Since I added a second winttv nova-t pci car to my box I get occasional
'ghost' keypresses -

while watching tv - it will start up the menu or speed play forward etc...

its seems entirely random and sporadic.

I never noticed it with the single card


anyone seen this or know a cure ?

--
dkh

ps I'm not sitting/leaning on the remote before anyone asks!

Exorcism? "By the power of St. Tux I cast you out foul creatures of Redmond! Begone ye unclean beasts!" Don't forget to sprinkle lots of virtual beer and perfume the air with good carryout.

That's certainly a good one. Since the major sources of keypresses are the keyboard driver and lircd you've probably got either some kind of lirc problem or some kind of hardware problem.

In the hardware category look at your interupts to make sure that there isn't some kind of strange sharing problem. Maybe moving the new card to a different slot is called for.

In the lirc category, .... uhm, check the log files? Especially the daemons log to make sure that lirc isn't trying to talk to both cards.

You could leave irw running while out for the day and see if there's anything on the screen when you get back. Other than that it seems a quite tricky problem to narrow down :/

Good idea mad -
I tried this overnight and left irw running whilst the box was not in use and there was no one in the room

When i look this morning

Irw has reported some random line noise on the screen






to be precise...

i wonder whats causing it

Next step i would say would be to unplug all the IR dongles etc and leave irw running overnight again, just to make absolutely sure its not something external causing it.

BTW have u now got a dongle in both nova-t's, the original one, or the new one?

i only had one dongle plugged in ... and ive reconfigured lircd and switched it to the other nova-t (cant remember which card was the 'new' one)

ill leave it running all night again and see what happens

- should have mentioned earlier .... i have a labtec rf keyboard too - wonder if that could be the problem.... but ive had that since day 1 so i dont think so....

ran it all last night on card #2 and got the same issue with irw

im now starting to wonder is the placement of the ir reciever crucial.... its currently attached to the fromt of the tv casing - i wonder now is the tv thats generating theinterference ... that said it still happening with the tv switched off so who knows....

Are you using another remote in the same room? I know that my IR keyboard sensor sees something when I use another remote because the status LED changes. So far it doesn't seem to have caused a problem because the command sets are different enough.

occasionly use a spearate remote for the TV - but this is happening when no remotes are in use and the room is unattended !


Ive unplugged the dongle completely tonight to see it it still happens with it unplugged.

D

I have a USB IR receiver with a receive light and when I am watching TV the light on the odd occassion comes on. I can't explain it either.

_________________
Girkers

Well after last nights test (ir reciever completely unplugged from the Tuner card)....

I still got ghost keypresses.

My current theory is that there is electrical interference which is effecting both cards and causing them to generate these fake IR events.

Either they are interfering with each other or possibly the 60cm slientX fan at the back of the case is the problem...

I could try removing the fan or one of the cards to see if it goes away... however I kinda want to keep both cards and the fan so I dunno if this will get me far!


Declan

How weird! Is your case jammed full? If not you could try shuffling everything about...

You might be onto something with your cards causing interfearence. When i first put together my twin dvb-t card box I found that if they were next to each other, my tv reception was all over the place. Lots of green bands and blocking...
Once I'd spaced them one PCI apart. Almost perfect reception - 99% of the time the picture is crystal clear. (The other 1% is down to atmospherics: wind rocking my ariel etc.)

unfortunately I have no shuffle space - its a micro-atx motherboard with only 2 pci slots and im using both already.

network access is via a wireless bridge which means i use the onbard lan

Declanh

This problem may be related to your RF keyboard after all. Try this. Open a terminal and run irw. Now press the I key. You should notice that the letter I prints out on the terminal.

The keypresses you are seeing may be coming from the keyboard/RF interference. Leave irw running overnight but disconnect your keyboard receiver and see if you get anymore phantom keypresses.