[mythtv-users] OT: receiver problem

[Andrew Stadt]

On 22/02/2012 2:00 PM, Nick Rout wrote:
> On Wed, Feb 22, 2012 at 7:26 PM, Andrew Stadt<acstadt at stadt.ca>  wrote:
>> On 20/02/2012 6:31 PM, Paul Stillwell wrote:
>>> I'm running Fedora 14 with mythtv 0.24-266. I have an Intel DG45id motherboard with HDMI output hooked to my receiver and my receiver is hooked to my Panasonic TV via HDMI. Everything had been working great until a couple of weeks ago. I came home and the resolution had changed for some reason. I rebooted it and it comes back up at not the correct resolution. It almost looks like it is running 640x480, but when I look at the monitor resolution under System->Monitors it reports 1920x1080. I hooked the HDMI cable that comes from the TV directly into the PC and the resolution is fine so it seems like something with my receiver (a Denon 2808ci).
>>>
>>> I tried hacking an xorg.conf file (I don't run with one I let the hardware detect the setup), but that didn't work. I don't know much about what should go in xorg.conf so I could have made a mistake there. I could hook the HDMI from the TV into the PC and then run S/PDIF from the PC to the receiver, but it would be a pain to do. It's nice right now that everything goes through HDMI.
>>>
>>> Has anyone else seen anything like this before? Anyone have any suggestions?
>>>
>>> Paul
>>>
>> I had similar issues running a TV (both Sony&  LG) through a Yamaha
>> receiver.  Not sure what the Yamaha receiver was doing to the EDID data,
>> but it wasn't getting back through to Xorg. I presume you're not using
>> an nVidia card, so I'm not sure the easiest way to do this is; but in my
>> case, the easiest solution, and the most elegant, was to get the edid
>> data block, save it in a file somewhere, and then in xorg.conf (in the
>> device section) specify a custom edid.  I had to pass a couple extra
>> options to xorg to keep it happy, if it makes your live any easier, this
>> is what the device portion of my xorg.conf looks like:
>>
>> Section "Device"
>>      Identifier     "Device0"
>>      Driver         "nvidia"
>>      VendorName     "NVIDIA Corporation"
>>      Option "CustomEDID" "DFP-1:/etc/X11/lg47v4400.edid"
>>      Option "ModeValidation" "NoDFPNativeResolutionCheck"
>>      Option "UseDisplayDevice" "DFP-1"
>>      Option "ConnectedMonitor" "DFP-1"
>>      Option "UseEvents" "True"
>>      Option "DPI" "96 x 96"
>>      Option "TripleBuffer" "True"
>>      Option "NoLogo"    "True"
>> EndSection
>>
>> Not sure exactly what options you need for your video card.  Failing
>> that, if you can get (and parse) the edid data, if would be simple
>> enough to generate some custom modelines for your monitor/tv.
> But he has an intel GPU and I believe that doesn't have the CutomEDID facility.
>
Which is why I mentioned using the EDID data to generate some custom 
modelines.