I've been away for a bit. I tried before leaving and today a bit, but got the same result. I currently only have one of the quattro's installed/connected to the multiswitch. What is strange is I can choose no DISEqC, or DISEqC Pos1 or 2, and still get my channels. Looking at the multiswitch it should be pos 1. Maybe it's not picky if there's only one quattro installed, I don't know.
Would be very surprised if the switch wasn't picky with only one LNB attached... When you get a lock either way, it tells me the that the DISEqC is not picked up (well, sent out) correctly... But again, try looking at the working setup from one of the regular receivers - how is DISEqC configured here? Where is it "you can choose no DISEqC, or DISEqC Pos1 or 2, and still get my channels."?? Is that on a regular sat box? Have you had it working with both LNBs installed at any point?
In the myth-tv setup I have tried exactly what you wrote, both Pos 1 and Pos 2, no luck. I also tried without a switch and just an LNB in the configuration and that actually locks on (which I don't in DISEqC mode) to some of the transponders, however no channels are found. The transponders give channels on the normal satellite receivers/boxes.
The Switch (the DISEqC part of it) probably just defaults to Pos1 when no commands are received - which is nice for now. I recommend ignoring DISEqC until you have the card working. When you write that you get lock "to some of the transponders" that really is a tell tale sign for me that the driver isn't working!
I assume your are running 10.04 with a 2.6.32 kernel. Your card have had drivers included in the kernel since 2.6.28 - but they are buggy... Please take a look at this link for hints to a solution: http://www.linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-4000
I have tested one of the HVR-4000 on my Windows machine. It can get both the DVB-T and the DVB-S channels meaning that card is functional. So I think the cards don't install properly under LinuxMCE. They get listed under the MythTV-setup but something obviously goes wrong. The DVB-T part doesn't work either, but then again it didn't work under 8.10 when DVB-S did - so that might not say much.
You should be aware that due to limitations of the card Myth (or any system) can not use DVB-S and DVB-T simultaneously. Not a problem on a desktop setup, but for a server setup like Myth this limitation is important.. And I am quite sure that Myth will not "release" the DVB-S lock to allow using it as a DVB-T tuner when not requiring DVB-S... The problem is that for Myth there is no conflict, since these 2 tuners are on different adapters. (Adapter 0 should be DVB-S and adapter 1 DVB-T, if I remember correct?)
I at least can't see any other possibility for now and I don't have any other type of DVB-S card (only a DVB-T one) in order to test this theory. I guess my options now are getting hold of another DVB-S card or figuring out what can be wrong with the HVR-4000 installation. I have no experience but maybe it's be the firmware? I could sell the HVR-4000 and get something else but they're nice cards if you can receive DVB-T/S/S2 channels.
Have a stab at rectifying the driver issues
Or consider it this way - these cards are mostly nice in a single user setup, so for Myth you could do with any other DVB-S2 or DVB-T card, or a mix of them, and then allow your household to have direct sat feed (or DVB-T) to their windows desktops through the HVR-4000 cards.. Even if it would be redundant if you get your Myth setup working, but that's beside the point
As for the T90, you're absolutely correct ^^ Just having 1-2 LNB's on it is a bit of a waste but $200 for skipping cable-TV (for about a dozen TVs) and having the flexibility to expand isn't so expensive. I was going to get Thor 5-6 for the Swedish channels but I was unaware they displaced the "nordic" beam more towards the north, so I'm unable to get it in Switzerland (where I live).
Anyway, a big thanks for the help and making sure I'm on the right road.
You are very welcome - I still hope you manage to get it working
I have the T90 myself, and living in Denmark means I never have to concern which of the beams I am trying to catch for the Nordic providers - although I am also able to get SkyUK Freesat on the same dish - even if this beam is supposedly focused very much on UK.
I would argue that you should be able (with luck and fine tuning) to catch the Thor Nordic beam on a T90 - but the thing with these beams is that they are not decreasing linearly in strength when you move out of their focus area... So somebody 50 Km from you might see very different results (better or worse). Anyway, I believe more than half of both Canal Digital and Viasat is on beams, that should be very possible to catch for you... You would need to tinker with decoding anyway, so lets get you a stable Myth before going down this route