Baltus72

@Trial,
Thanks for the tip about trying the original image. I tested the latest image before the kernel switch (vuplus-image-vuultimo-20140714162755_usb.zip),

but I get the exact same problem. Once I set one channel to record I can not switch to another transponder, and that basically makes the box useless...
And yes, I'd certainly also expect this to be a known issue, but I can't see where there's any room for mistakes on my side when simply testing channels

that don't require any softcam. The only thing I'm not quite sure about is the image versions, 1.6 and 2.1. I picked 2.1 as I assume it's the most relevant.

On a more positive note, I've at least gotten OpenPLi 4 and the old drivers to work quite well besides one issue. I can use all channels and all tuners but

there is one problematic transponder that can cause problems, depending on the sequence. Let's say I use transponder A, B and C, where C is the one

that causes problems. I can watch and record freely on all tuners except: If I record from transponder A + B, I get "Tune Failed" on zap to transponder C. 
Likewise, transponder C will fail on recording if I already record one channel and watch a third channel from transponder A and B. In other words, I must
make sure that transponder C is never the last in line when I have 3 transponers active simultaneously. This can be partially worked around by using the
"Zap and record" option for timer recordings. I have no idea if that is a driver issue as well, but I'm open for any potential suggestions.. :-)
 

I finally manged to pinpoint the issue here...

It turned out Dima73 was right about the drivers, although it was probably not the way he suspected. :-)

Basically, the drivers have been broken for Ultimo and multiple DVB-C tuners for more than 2 years.

OpenPLi 4 works, but *only* when I replace the drivers with an old version from the archives. The last
working driver is "vuplus-dvb-modules-vuultimo-3.1.1-4.4.3-20120628.tar.gz". This one is more than

two years old, and it's been broken since "vuplus-dvb-modules-vuultimo-3.1.1-4.4.3-20120820.tar.gz".

Can someone with connection to the VU+ developers please report this so that it can be fixed?

Baltus72

Maybe the problem drivers.
Install VTI with the latest drivers and check.

Thanks a lot for the suggestion. :-)
I flashed the box with VTI v7 and updated the image with the latest patches.

There was no "Preferred tuner for recording" so I'll have to assume that it's the same behaviour as in old OpenPLi 2.4 images.

However, I got the same issue with tuner selection in VTI, which indicates that the "Preferred Tuner" Auto function is broken for my setup.
That would be extremely strange as my setup is as simple as it gets for multiple tuners, and it's been non working at least since late march.

I've double and triple checked with clean flashes, and there's only one conclusion: OpenPLi 2.4 works ok but everything else fails miserably.
Basically, it seems there must've been a change in the Auto feature implementation at some point in the core image that affects all releases

that are built upon that code.

The question now is: can it be fixed and where to report the issue? Or is it possible to rip out the Auto function code from version 2.4 and
replace the current code? I have no idea if the code is isolated enough to "transfer" to newer builds, but I'd sure love to try if it's possible.

The Preferred Tuner for recording option seems quite confusing, and judging by this thread I'm not alone...

Basically, I'm fine with all kinds of options so long as there is an automatic tuner selection that actually works.

However, it's completely broken on my Ultimo triple DVB-C setup, and it doesn't matter what settings I use for

"Preferred Tuner for recording" so long as I use Auto for "Preferred Tuner". More details in the post here:

http://openpli.org/f...ndpost&p=443031

Ok, now I'm confident that there's a major problem that goes a long way back...at least since late march.

I finally found an older image (OpenPLi-2.1-beta-vuultimo-20120521_usb.zip) that I could use to compare with newer images.

Now I have ruled out the card and the softcam as potential culprits and then we're left with the images as the only difference.

I flashed OpenPLi 2.1 and tested without any softcam running, and recorded 3 channels on different transponders just fine.

I then flashed v4 from yesterday and boom - one recording and no zapping to a different transponder with tuner set to Auto.

Likewise, standing on one transponder and recording from a different transponders corrupts the recording. Gone forever..

It seems clear that either "Preferred Tuner" or "Preferred Tuner for recording" (or both) is completely broken for Ultimo with

3 DVB-C tuners in the box. It's virtually impossible to prevent disasters with broken recordings no matter what settings I use.

The "Preferred Tuner" option is present also in 2.1, while "Preferred Tuner for recordings" was implemented later. I have

no idea when, but something must've went terribly wrong either with that implementation - or perhaps this change later on:
http://openpli.org/f...-for-recording/

There might be other images out there that doesn't have this issue for all I know, but I'm just interested in getting this fixed in
OpenPLi. I really don't want to change as I love everything about the OpenPLi images - except for this fatal issue.

I'd *really* like to get some feedback on this, even if it's just a confirmation that it's been noted and hopefully taken seriously.

Going back to 2.1 is not a good idea as the newer images seems much more solid in general, and the 2.1 feed is history...