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 <dheitmuel...@kernellabs.com> wrote:
> On Thu, Nov 5, 2009 at 12:23 AM, Robert Lowery <rglow...@exemail.com.au>
> 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
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