How to disable one Radeon output?

[Boszormenyi Zoltan]

2016-08-29 16:17 keltezéssel, Boszormenyi Zoltan írta:
> 2016-08-29 16:07 keltezéssel, Boszormenyi Zoltan írta:
>> 2016-08-29 13:35 keltezéssel, Boszormenyi Zoltan írta:
>>> Hi,
>>>
>>> I have a small Kabini base mini PC that has a primary DisplayPort-0
>>> output and a secondary HDMI-0 output.
>>>
>>> I would like to have a configuration where only the primary is used
>>> no matter if there's a monitor attached to the secondary.
>>> (Don't ask, business requirements.)
>>>
>>> No matter how I try, the secondary monitor output is the clone
>>> of the primary.
>>>
>>> Is there a way to disable a specific Radeon output from xorg.conf?
>>>
>>> Here's a configuration below that should work but doesn't.
>>>
>>> The same method works for the Intel driver: explicitly reference
>>> the to-be-disabled ZaphodHead in a Device section, a Screen section
>>> in turn references this Device section and then leaving the second
>>> Screen out of the ServerLayout section give the desired result,
>>> X leaves the unwanted output in terminal mode.
>>
>> Answering to myself. Adding "Screen n" to individual Device section
>> does what I need. Strange that the driver doesn't pick this up from
>> the Screen section setup.
>
> No, it doesn't work. The secondary HDMI TV just turn itself off and I didn't notice...

Spoke too soon, I didn't re-test it properly. Adding "Screen n" to the Device
section really works.

>
>>
>>>
>>> ...
>>> Section "Device"
>>>     Identifier    "RADEON"
>>>     Driver        "radeon"
>>>     BusID        "PCI:0:1:0"
>> Screen 0
>>>     Option        "AutoServerLayout" "on"
>>>     Option        "ZaphodHeads" "DisplayPort-0"
>>>     Option        "Monitor-DisplayPort-0" "DisplayPort-0"
>>>     Option        "TearFree" "on"
>>>     Option          "DRI"    "3"
>>> EndSection
>>>
>>> Section "Device"
>>>     Identifier    "RADEON1"
>>>     Driver        "radeon"
>>>     BusID        "PCI:0:1:0"
>> Screen 1
>>>     Option        "AutoServerLayout" "on"
>>>     Option        "ZaphodHeads" "HDMI-0"
>>>     Option        "Monitor-HDMI-0" "HDMI-0"
>>>     Option        "TearFree" "on"
>>>     Option          "DRI"    "3"
>>> EndSection
>>> ...
>>>
>>> Thanks in advance,
>>> Zoltán Böszörményi
>>>
>>>
>>>
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>>
>>
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>
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