Re: DVI/VGA/HDI mess on Radeon HD 6570

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2011-12-19 18:14 keltezéssel, David Airlie írta:
>> about two months ago I bought a Radeon HD 6570 with
>> 2GB memory for my main computer and I have a single
>> monitor connected to it, until now via VGA D-Sub.
>>
>> Last week our secondary TV died (it was 15 years old, R.I.P.)
>> so I bought a nice 32" LED TV which has 3 external HDMI
>> connectors.
>>
>> The HD 6570 has one DVI-D, one HDMI and one VGA connectors
>> so I thought it would be fun to allow the family to watch videos
>> while I can also work on the computer.
>>
>> Here comes my problem: no matter which connectors I use
>> for the monitor (DVI-D or D-Sub), if the TV is switched on,
>> HDMI comes up as primary display. The result: GNOME 3
>> workspaces are switchable on the TV but a single workspace
>> is visible on my monitor. This would be the perfect setup
>> if I can reverse the roles of the TV and the monitor.
>>
>> "man radeon" had an option which I tried but didn't help:
>> Option "ZaphodHeads" "DVI-0,HDMI-0"
> xrandr --output DVI-0 --primary
>
> or open the gnome display applet and drag the bar from one monitor to another.

Thanks.
Is this setting permanent after reboot and applies to GDM, too?

>
> Dave.
>

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