I have one of these too. lsusb: Bus 003 Device 003: ID 0fe9:db78 DVICO FusionHDTV DVB-T Dual Digital 4 (ZL10353+xc2028/xc3028) (initialized) Bus 003 Device 002: ID 0fe9:db78 DVICO FusionHDTV DVB-T Dual Digital 4 (ZL10353+xc2028/xc3028) (initialized) In addition I have a "DViCO Dual Digital Express" which is a PCIe card based on Conexant, with the Zarlink frontend. lspci: 04:00.0 Multimedia video controller [0400]: Conexant Systems, Inc. CX23885 PCI Video and Audio Decoder [14f1:8852] (rev 02) Subsystem: DViCO Corporation Device [18ac:db78] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 19 Region 0: Memory at 90000000 (64-bit, non-prefetchable) [size=2M] Capabilities: <access denied> Kernel driver in use: cx23885 Kernel modules: cx23885 More detail, including dmesg etc, at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/459523 On 11/6/09, Devin Heitmueller <dheitmueller@xxxxxxxxxxxxxx> wrote: > On Thu, Nov 5, 2009 at 12:23 AM, Robert Lowery <rglowery@xxxxxxxxxxxxxx> > wrote: >> Hi Devin, >> >> Thanks for your reply. >> >> I don't think your suggestion to use disable_power_mgmt will work as I >> already tried setting the no_poweroff=1 kernel module without success (and >> even tried recompiling with xc2028_sleep returning 0 immediately, but >> until I stopped the .sleep being set at all in xc2028_dvb_tuner_ops, the >> problem kept happening. >> >> The only thing that fixed it without code change was to set >> dvb_powerdown_on_sleep=0. >> >> Looking at the below code from dvb_frontend.c, the only difference I could >> see between setting no_poweroff=1 and not setting .sleep is the latter >> stops i2c_gate_ctrl being called. >> >> if (dvb_powerdown_on_sleep) { >> if (fe->ops.set_voltage) >> fe->ops.set_voltage(fe, SEC_VOLTAGE_OFF); >> if (fe->ops.tuner_ops.sleep) { >> if (fe->ops.i2c_gate_ctrl) >> fe->ops.i2c_gate_ctrl(fe, 1); >> fe->ops.tuner_ops.sleep(fe); >> if (fe->ops.i2c_gate_ctrl) >> fe->ops.i2c_gate_ctrl(fe, 0); >> } >> if (fe->ops.sleep) >> fe->ops.sleep(fe); >> } >> >> I'm not very familiar with this code. Am I missing something? >> >> -Rob > > Could you please clarify exactly which card you have (PCI/USB ID)? > > Devin > > -- > Devin J. Heitmueller - Kernel Labs > http://www.kernellabs.com > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
