[mythtvnz] Xorg and Intel HD 630 graphics -- please help!

[Joel Wirāmu Pauling]

Have you tried deleting the xorg config completely? Ubuntu has a bunch
of defaults it will autoload and your should be able to manage it from
there.

You didn't mention which distro this is on but anything recent with
Intel cards tends to work better without Manual xorg config.



On 1 September 2018 at 16:17, Austin Green <austin.green at orcon.net.nz> wrote:
> On Sat, 01 Sep 2018 14:45:17 +1200
> Stephen Worthington <stephen_agent at jsw.gen.nz> wrote:
>
>> On Sat, 1 Sep 2018 14:27:25 +1200, you wrote:
>>
>> >I've just changed CPU and motherboard for my MythTV machine, and having no
>> >luck at getting it to output a video signal to the TV.  Anyone else have a
>> >similar set-up to this?
>> >
>> >OS is Linux, an Ubuntu derivative.
>> >
>> >The graphics card used to happily drive two outputs. I use the DVI output
>> >for console, and the HDMI for the TV.  The old setup was an Asus GT 430
>> >graphics card and it worked fine; with the new Intel HD 630 built-in one
>> >I can only get it to set up one Xorg screen (or none!)
>> >
>> >The "Xorg -configure" command fails, complaining about "no devices".
>> >All my attempts at a manual Xorg.conf file produce either a working console,
>> >with no TV output, or nothing at all (hangs during start-up)
>> >
>> >We've had no TV to watch for several days, and SWMBO is not very pleased!   :)
>>
>> The obvious immediate answer to that problem is to put the GT430 card
>> back in the box, if possible.  But the Intel GPU should work, even if
>> its deinterlacing will not be as good as the Nvidia card as MythTV
>> does not support the way Intel does the higher deinterlacing modes.  I
>> have not used a modern Intel GPU recently, but I have an older one in
>> my laptop (i7-3610QM processor) and I have never had any problems
>> making it work with MythTV.  I did not need to use any settings in
>> Xorg.conf - it just worked.  I do not think I have ever tried it with
>> multiple monitors though.
>>
>> How are you connecting things?  Having monitors and TVs work properly
>> relies on the EDID data.  My TV produces reasonable EDID data, so I do
>> not need to override it in settings anywhere, but some TVs are very
>> bad.  Monitors tend to have better EDID data than TVs, but can have
>> bad data also.  And the data needs to get through to the PC - so a
>> direct cable is best to try first, rather than through any HDMI
>> devices like amplifiers or switches.
>
> Console monitor is plugged straight into mobo DVI outlet; TV is connected
> via HDMI-over-cat5 extender.  All worked fine before with the same set-up.
> I did have to have a custom xorg.conf, and assumed that all I would need
> to do would be to change the driver from "nouveau" to "intel" -- but it
> seems not!
>
> I was hoping someone else would have the same set-up, and be able to say
> something simple like "oh, you need a later kernel version" (4.4 at present).
>
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