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Thread: [WINTV HVR-4000]cx22702_readreg error after suspend

  1. #1
    Join Date
    May 2012
    Beans
    29

    [WINTV HVR-4000]cx22702_readreg error after suspend

    Hello,
    I'm experiencing some trouble with a tv card I bought recently.
    Model is Hauppauge WinTV-HVR-4000 and before buying I double checked the card was compatible with linux.
    Indeed the card works almost flawlessly. The only problem pops up when I resume after suspending/hibernating.
    The card ceases to work and in /var/log/kern.log appears a lot of error messages.

    Code:
    Sep 24 23:28:24 zion kernel: [ 8856.997873] tda9887 0-0043: i2c i/o error: rc == -6 (should be 4)
    Sep 24 23:28:24 zion kernel: [ 8856.999435] cx22702_readreg: error (reg == 0x0d, ret == -6)
    Sep 24 23:28:24 zion kernel: [ 8857.000192] cx22702_writereg: error (reg == 0x0d, val == 0x01, ret == -6)
    Sep 24 23:28:24 zion kernel: [ 8857.029626] cx22702_readreg: error (reg == 0x0a, ret == -6)
    Sep 24 23:28:24 zion kernel: [ 8857.030384] cx22702_readreg: error (reg == 0x23, ret == -6)
    Sep 24 23:28:24 zion kernel: [ 8857.031186] cx22702_readreg: error (reg == 0x23, ret == -6)
    ...
    tda9987 errors are only few but cx22702 errors are about one hundred per sec (I'm not exaggerating).

    I plugged the card in two pcs and tested it with several kernels and drivers. These are systems showing errors:
    • Ubuntu 10.04 x86 - kernel 2.6.32 - firmware 1.26.90.0 - ubuntu default driver
    • Ubuntu 12.04 x86 - kernel 3.8.0-44 - firmware 1.26.90.0 - ubuntu default driver
    • Ubuntu 12.04 x86 - kernel 3.8.0-44 - firmware 1.26.90.0 - LinuxTV V4L-DVB driver
    • Ubuntu 12.04 x64 - kernel 3.2.0-53 - firmware 1.26.90.0 - ubuntu default driver
    • I've performed also other tests but these are the only ones I can remember by heart.


    If you use default drivers and firmware errors don't show up. But mythtv doesn't work with default firmware ...
    I stress: card works after a fresh boot. It is suspend/resume that breaks something down.
    I tried to unload the module (modprobe -r cx22702) before hibernating and reload afterwards without any positive effect.
    Last edited by LastStarDust; September 24th, 2013 at 11:52 PM.

  2. #2
    Join Date
    May 2012
    Beans
    29

    Re: [WINTV HVR-4000]cx22702_readreg error after suspend

    I tried all firmwares listed here without succeeding: Hauppauge WinTV-HVR-4000
    Some links are even broken ...

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