Hi,
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"
Is there any other option that does what I want?
Thanks in advance, Zoltán Böszörményi
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.
Dave.
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.
2011-12-19 18:42 keltezéssel, Adam Jackson írta:
On Mon, 2011-12-19 at 18:19 +0100, Boszormenyi Zoltan wrote:
Thanks. Is this setting permanent after reboot and applies to GDM, too?
It's stored in the session, so if there's not a "Make system default" button in the UI, then no it won't affect gdm.
Thanks. As I am logged in as my user, there's no such button. How can I set it as the system default? It was a long time ago when GNOME allowed a root login.
On Mon, 2011-12-19 at 18:56 +0100, Boszormenyi Zoltan wrote:
Thanks. As I am logged in as my user, there's no such button. How can I set it as the system default? It was a long time ago when GNOME allowed a root login.
Ideally, gnome would implement that button.
Failing that you can set Option "Primary" for the appropriate monitor section in xorg.conf.
- ajax
2011-12-19 19:31 keltezéssel, Adam Jackson írta:
On Mon, 2011-12-19 at 18:56 +0100, Boszormenyi Zoltan wrote:
Thanks. As I am logged in as my user, there's no such button. How can I set it as the system default? It was a long time ago when GNOME allowed a root login.
Ideally, gnome would implement that button.
Failing that you can set Option "Primary" for the appropriate monitor section in xorg.conf.
- ajax
I have found a way to match GDM's behaviour to what I have set in my session. This is embarrassingly simple. After setting up the monitors in the GNOME display applet:
sudo cp ~/.config/monitors.xml /var/lib/gdm/.config/
Next time GDM restarted, it behaved the way I set up.
Best regards, Zoltán Böszörményi
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