[opensuse-factory] xrandr - only default output - openSUSE Factory

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Petr Uzel

27 May 2009 27 May '09

12:01

Hi list! I spent some time trying to configure dualhead setup using RandR extension but without any success. I have two LCD displays connected to my 'nVidia Corporation NV44 [GeForce 6200 TurboCache(TM)]' card, one to DVI, the other to VGA. So I would expect xrandr -q to show these outputs, but it doesn't:

...

xrandr -q Screen 0: minimum 640 x 400, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm 1280x1024 60.0* 75.0 1280x960 60.0 1152x864 75.0 1024x768 75.0 70.0 60.0 832x624 75.0 800x600 75.0 72.0 60.0 56.0 640x480 75.0 73.0 67.0 60.0 720x400 70.0

I use nv driver. RandR seems to work (at least somehow), bacause: # grep -i rand /var/log/Xorg.0.log (**) Option "RandR" "on" (**) RandR enabled (II) Initializing built-in extension RANDR and issuing 'xrandr --output default --mode 800x600' command changes the resolution. I might be wrong, but I'm under impression that making both (VGA & DVI) outputs to appear in 'xrandr -q' output is essential do get dualhead working. Any idea what might be wrong or what am I doing wrong? Thanks, -- Best regards / s pozdravem Petr Uzel, Packages maintainer --------------------------------------------------------------------- SUSE LINUX, s.r.o. e-mail: puzel@suse.cz Lihovarská 1060/12 tel: +420 284 028 964 190 00 Prague 9 fax: +420 284 028 951 Czech Republic http://www.suse.cz -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

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Lubos Lunak

27 May 27 May

12:08

On Wednesday 27 of May 2009, Petr Uzel wrote:

...

Hi list!

I spent some time trying to configure dualhead setup using RandR extension but without any success.

I have two LCD displays connected to my 'nVidia Corporation NV44 [GeForce 6200 TurboCache(TM)]' card, one to DVI, the other to VGA.

So I would expect xrandr -q to show these outputs, but it doesn't:

...
xrandr -q

Screen 0: minimum 640 x 400, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm

IIRC the only way to get an output named 'default' is to use a driver which supports only xrandr extension older than version 1.2.

...

I might be wrong, but I'm under impression that making both (VGA & DVI) outputs to appear in 'xrandr -q' output is essential do get dualhead working.

It is not, you just cannot use xrandr, as pre-1.2 versions didn't care about multiple monitors at all. Configure it in your xorg.conf . -- Lubos Lunak KDE developer -------------------------------------------------------------- SUSE LINUX, s.r.o. e-mail: l.lunak@suse.cz , l.lunak@kde.org Lihovarska 1060/12 tel: +420 284 084 672 190 00 Prague 9 fax: +420 284 028 951 Czech Republic http://www.suse.cz -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

Petr Uzel

12:10

On Wed, May 27, 2009 at 02:01:22PM +0200, Petr Uzel wrote:

...

Hi list!

I spent some time trying to configure dualhead setup using RandR extension but without any success.

I have two LCD displays connected to my 'nVidia Corporation NV44 [GeForce 6200 TurboCache(TM)]' card, one to DVI, the other to VGA.

So I would expect xrandr -q to show these outputs, but it doesn't:

...
xrandr -q Screen 0: minimum 640 x 400, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm 1280x1024 60.0* 75.0 1280x960 60.0 1152x864 75.0 1024x768 75.0 70.0 60.0 832x624 75.0 800x600 75.0 72.0 60.0 56.0 640x480 75.0 73.0 67.0 60.0 720x400 70.0

I use nv driver.

RandR seems to work (at least somehow), bacause: # grep -i rand /var/log/Xorg.0.log (**) Option "RandR" "on" (**) RandR enabled (II) Initializing built-in extension RANDR

and issuing 'xrandr --output default --mode 800x600' command changes the resolution.

I might be wrong, but I'm under impression that making both (VGA & DVI) outputs to appear in 'xrandr -q' output is essential do get dualhead working.

Any idea what might be wrong or what am I doing wrong?

Oh, I forgot: The display connected to DVI works just fine, the other shows some 'random image'. -- Best regards / s pozdravem Petr Uzel, Packages maintainer --------------------------------------------------------------------- SUSE LINUX, s.r.o. e-mail: puzel@suse.cz Lihovarská 1060/12 tel: +420 284 028 964 190 00 Prague 9 fax: +420 284 028 951 Czech Republic http://www.suse.cz -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

Petr Uzel

12:38

On Wed, May 27, 2009 at 02:08:30PM +0200, Lubos Lunak wrote:

...

On Wednesday 27 of May 2009, Petr Uzel wrote:

...
Hi list!

I spent some time trying to configure dualhead setup using RandR extension but without any success.

I have two LCD displays connected to my 'nVidia Corporation NV44 [GeForce 6200 TurboCache(TM)]' card, one to DVI, the other to VGA.

So I would expect xrandr -q to show these outputs, but it doesn't:

...
xrandr -q

Screen 0: minimum 640 x 400, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm

IIRC the only way to get an output named 'default' is to use a driver which supports only xrandr extension older than version 1.2.

Hm, man nv does not give much information about supported RandR version. If I understand it right that 1.2 is supported only with G80 and higher CPUs, then it starts to make sense :)

...

...
I might be wrong, but I'm under impression that making both (VGA & DVI) outputs to appear in 'xrandr -q' output is essential do get dualhead working.

It is not, you just cannot use xrandr, as pre-1.2 versions didn't care about multiple monitors at all. Configure it in your xorg.conf .

Or maybe try nouveau? What do you think? Thanks, -- Best regards / s pozdravem Petr Uzel, Packages maintainer --------------------------------------------------------------------- SUSE LINUX, s.r.o. e-mail: puzel@suse.cz Lihovarská 1060/12 tel: +420 284 028 964 190 00 Prague 9 fax: +420 284 028 951 Czech Republic http://www.suse.cz -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

Greg Freemyer

12:50

On Wed, May 27, 2009 at 8:01 AM, Petr Uzel wrote:

...

Hi list!

I spent some time trying to configure dualhead setup using RandR extension but without any success.

Petr, Not sure if this helps, but I got dual head working on my laptop with OS 11.1. I used Xinerama and kde4.2. To get the split presentation setup I had to use the latest OOo version of impress. ie. The version in the official 11.1 release did not work with dual heads. It would only detect the second monitor being present on bootup, or on kde logout. It is supposed to be able to handle the second monitor coming and going on the fly, but I did not get that working. Greg -- Greg Freemyer Head of EDD Tape Extraction and Processing team Litigation Triage Solutions Specialist http://www.linkedin.com/in/gregfreemyer First 99 Days Litigation White Paper - http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf The Norcross Group The Intersection of Evidence & Technology http://www.norcrossgroup.com -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

Petr Uzel

28 May 28 May

09:11

On Wed, May 27, 2009 at 08:50:13AM -0400, Greg Freemyer wrote:

...

On Wed, May 27, 2009 at 8:01 AM, Petr Uzel wrote:

...
Hi list!

I spent some time trying to configure dualhead setup using RandR extension but without any success.

Petr,

Not sure if this helps, but I got dual head working on my laptop with OS 11.1.

I used Xinerama and kde4.2. To get the split presentation setup I had to use the latest OOo version of impress. ie. The version in the official 11.1 release did not work with dual heads.

It would only detect the second monitor being present on bootup, or on kde logout. It is supposed to be able to handle the second monitor coming and going on the fly, but I did not get that working.

Thanks Greg and Lubos for your replies. I gave up with nv driver and used the proprietary one - then it was easy to setup dualhead with sax2. -- Best regards / s pozdravem Petr Uzel, Packages maintainer --------------------------------------------------------------------- SUSE LINUX, s.r.o. e-mail: puzel@suse.cz Lihovarská 1060/12 tel: +420 284 028 964 190 00 Prague 9 fax: +420 284 028 951 Czech Republic http://www.suse.cz -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org

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Greg Freemyer
Lubos Lunak
Petr Uzel