[ubuntu-mythtv] Hauppauge USB WinTV HVR-950 USB

[Eric Shubert]

On 11/04/2011 02:44 PM, Eric Shubert wrote:
> I have one of these:
> http://linuxtv.org/wiki/index.php/Hauppauge_WinTV-HVR-950
> that I'm trying to get working with the latest (11.10) mythbuntu 
> (kernel 3.0.0-12-generic).
>
> If I boot with the device connected, I get:
> dmesg shows:
> [   28.024835] Linux video capture interface: v2.000
> [   29.076834] em28xx: New device WinTV HVR-980 @ 480 Mbps 
> (2040:6513), interface 0, class 0)
> [   30.472284] em28xx #0: em28xx_init_dev: em28xx_write_regs_req 
> failed! retval [-110]
> [   30.472567] em28ss: probe of 1-1:1.0 failed with error -110
> [   30.473061] usbcore: registered new interface driver em28xx
> [   30.473111] em28xx driver loaded
>
> When I remove and reconnect the device after the host is running, it 
> appears to load everything properly, but dmesg occasionally shows:
> [ 3358.850730] xc2028 0-0061: Error: firmware xc3028-v27.fw not found
> I see this message for each channel scanned when I scan for channels 
> during configuration.
>
> During backend configuration, I also get this in dmesg:
> [ 4036.354569] lgdt330x: lgdt3303_read_status: Modulation set to 
> unsupported value
> [ 4036.354704] lgdt330x: lgdt3303_read_snr: Modulation set to 
> unsupported value
> [ 4036.363007] lgdt330x: lgdt3303_read_snr: Modulation set to 
> unsupported value
>
> I installed the linux-firmware-nonfree package containing the 
> xc3028-v27.fw file, but that failed even worse. My understanding is 
> that with the 3.0 kernel I should not need this firmware, so I 
> subsequently uninstalled that package.
>
> Any pointers?
>
> (I can't copy/paste from that console but I can include more dmesg 
> output if that'd be helpful)
>
> TIA.
>

Ok, so as soon as I post to the list, I figured out a couple things.

I went ahead and reinstalled linux-firmware-nonfree, and have the 
xc3028-v27.fw file. The trick is to insert the usb tuner after the 
system reboots. Then things appears to load properly.

I'm still seeing the "Modulation set to unsupported value" message. 
Don't know if that's significant or not. When I scan for channels 
(broadcast), some show no signal, and others show no channels. Perhaps 
my antenna signal is simply too weak?

TIA for any pointers.

-- 
-Eric 'shubes'