Re: No subsystem id (and therefore no cx88_dvb loaded) after reboot

Wed, 18 Mar 2009 00:59:53 -0700 

Ang Way Chuang wrote:
I experience similar problem with HVR4000 Lite cards that we have in the lab. The card can't tune after cold boot, but a reboot will fix the problem. I will check whether it has the similar invalid subsystem id problem. 


Unfortunately, I can't reproduce the cold boot tuning problem now. We'll 
send syslog information if our partner universities report the similar 
issue. Sorry.




Grant Gardner wrote:



I'm looking for some pointers on debugging a problem with my DVICO
FusionHDTV Hybrid DVB-T card.


The device was working perfectly prior to a reconfiguration of my 
machine,

kernel upgrade etc...

Now, on a cold start everything seems to start smoothly but I can't tune
channels.

Then, after a reboot the device is not detected due to "invalid subsystem
id". As below lspci reports no subsystem information at all.
Comparing the lspci output seems to be around the "Region 0: Memory at
ee000000 v de000000", but I'm not
sure what this means, and whether fixing the reboot problem will fix the
channel tuning problem.

Running mythbuntu 8.10
2.6.27-11-generic #1 SMP Thu Jan 29 19:28:32 UTC 2009 x86_64 GNU/Linux

lspci -vvnn after cold start

00:0a.0 Multimedia video controller [0400]: Conexant Systems, Inc.
CX23880/1/2/3 PCI Video and Audio Decoder [14f1:8800] (rev 05)
    Subsystem: DViCO Corporation Device [18ac:db40]
    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: 32 bytes
    Interrupt: pin A routed to IRQ 18
    Region 0: Memory at de000000 (32-bit, non-prefetchable) [size=16M]
    Capabilities: [44] Vital Product Data <?>
    Capabilities: [4c] Power Management version 2
        Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
        Status: D0 PME-Enable- DSel=0 DScale=0 PME-
    Kernel driver in use: cx8800
    Kernel modules: cx8800


00:0a.1 Multimedia controller [0480]: Conexant Systems, Inc. 
CX23880/1/2/3

PCI Video and Audio Decoder [Audio Port] [14f1:8811] (rev 05)
    Subsystem: DViCO Corporation Device [18ac:db40]
    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: 32 bytes
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at df000000 (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 PME-Enable- DSel=0 DScale=0 PME-
    Kernel modules: cx88-alsa


00:0a.2 Multimedia controller [0480]: Conexant Systems, Inc. 
CX23880/1/2/3

PCI Video and Audio Decoder [MPEG Port] [14f1:8802] (rev 05)
    Subsystem: DViCO Corporation Device [18ac:db40]
    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: 32 bytes
    Interrupt: pin A routed to IRQ 18
    Region 0: Memory at e0000000 (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-)

currently, though we're working on a commercial implementation of the
RTP profile.

If you're interested in the GPL'ed UDP profile code, we can email it to
you in a week or two (we'll eventually make it available on our website
as well, but currently it needs to be cleaned up a bit).

T.C.

        Status: D0 PME-Enable- DSel=0 DScale=0 PME-
    Kernel driver in use: cx88-mpeg driver manager
    Kernel modules: cx8802


lspci -vvnn after warm reboot

00:0a.0 Multimedia video controller [0400]: Conexant Systems, Inc.
CX23880/1/2/3 PCI Video and Audio Decoder [14f1:8800] (rev 05)
      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: 32 bytes
      Interrupt: pin A routed to IRQ 18
      Region 0: Memory at ee000000 (32-bit, non-prefetchable) [size=16M]
      Capabilities: [44] Vital Product Data <?>
      Capabilities: [4c] Power Management version 2
              Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
              Status: D0 PME-Enable- DSel=0 DScale=0 PME-
      Kernel driver in use: cx8800
      Kernel modules: cx8800
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