[mythtv-users] Number of virtual tuners

[Pieter De Wit]

On 26/04/2012 15:00, Tapani Tarvainen wrote:
> On Wed, Apr 25, 2012 at 10:44:42PM +0200, Karl Dietz (dekarl at spaetfruehstuecken.org) wrote:
>
>> You can record overlapping programs from one DVB card with the multirec
>> feature. By default each DVB cards gets added as 2 virtual tuners.
>> You can push that up to 5 in mythtv-setup.
> Is there some reason to that limit, by the way?
> I could use more: we have up to 10 channels per MUX,
> and I've already hit the limit - recorded 6 programs
> of same MUX at the same time, that is, using two
> cards where one would've been enough if I could've
> had more virtual tuners per card.
>
Hi,

I think "we" should have a limit of per card:

My card (1) can't do more than 2:

TVRecEvent dvbchannel.cpp:347 (CheckFrequency) 
DVBChan(3:/dev/dvb/adapter0/frontend0): Your frequency setting 
(12483000) is out of range. (min/max:950000/2150000)

That freq. is a transponder that is valid :)

06:02.0 Multimedia video controller: Conexant Systems, Inc. 
CX23880/1/2/3 PCI Video and Audio Decoder (rev 05)
         Subsystem: Hauppauge computer works Inc. Nova-S-Plus DVB-S
         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- 
ParErr- Stepping- SERR+ FastB2B- DisINTx-
         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium 
 >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
         Latency: 32 (5000ns min, 13750ns max), Cache Line Size: 64 bytes
         Interrupt: pin A routed to IRQ 18
         Region 0: Memory at f8000000 (32-bit, non-prefetchable) [size=16M]
         Capabilities: [44] Vital Product Data
                 Unknown large resource type 04, will not decode more.
         Capabilities: [4c] Power Management version 2
                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
         Kernel driver in use: cx8800
         Kernel modules: cx8800

06:02.1 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI 
Video and Audio Decoder [Audio Port] (rev 05)
         Subsystem: Hauppauge computer works Inc. Device 9202
         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- 
ParErr- Stepping- SERR+ FastB2B- DisINTx-
         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium 
 >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
         Latency: 32 (1000ns min, 63750ns max), Cache Line Size: 64 bytes
         Interrupt: pin A routed to IRQ 18
         Region 0: Memory at f7000000 (32-bit, non-prefetchable) [size=16M]
         Capabilities: [4c] Power Management version 2
                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
         Kernel driver in use: cx88_audio
         Kernel modules: cx88-alsa

06:02.2 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI 
Video and Audio Decoder [MPEG Port] (rev 05)
         Subsystem: Hauppauge computer works Inc. Device 9202
         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- 
ParErr- Stepping- SERR+ FastB2B- DisINTx-
         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium 
 >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
         Latency: 32 (1500ns min, 22000ns max), Cache Line Size: 64 bytes
         Interrupt: pin A routed to IRQ 18
         Region 0: Memory at f6000000 (32-bit, non-prefetchable) [size=16M]
         Capabilities: [4c] Power Management version 2
                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
         Kernel driver in use: cx88-mpeg driver manager
         Kernel modules: cx8802

06:02.4 Multimedia controller: Conexant Systems, Inc. CX23880/1/2/3 PCI 
Video and Audio Decoder [IR Port] (rev 05)
         Subsystem: Hauppauge computer works Inc. Device 9202
         Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- 
ParErr- Stepping- SERR+ FastB2B- DisINTx-
         Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium 
 >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
         Latency: 32 (1500ns min, 63750ns max), Cache Line Size: 64 bytes
         Interrupt: pin A routed to IRQ 5
         Region 0: Memory at f5000000 (32-bit, non-prefetchable) [size=16M]
         Capabilities: [4c] Power Management version 2
                 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA 
PME(D0-,D1-,D2-,D3hot-,D3cold-)
                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-

Cheers,

Pieter