Separate xscreens troubles

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Separate xscreens troubles

Mark Hounschell
I'm running Leap 42.3 KDE/Plasma and am having difficulties getting this
configuration to work as it did/does in SuSE-13.2. I am using Nvidia's
proprietary driver and its nvidia-settings pgm to configure it. It
appears to try to work but not good enough. For instance, to just
describe a couple of things:

I set my display via "export DISPLAY=:0.1" then start an application
like konsole. It does start on the correct DISPLAY but the
minimize/maximize and exit buttons don't show up.

If I right click somewhere in DISPLAY :0.1, I get no response like I do
in 13.2.

Some application buttons in some applications don't show up at all or
ignored when clicked on.

The nvidia-settings pgm creates an /etc/X11/xorg.conf file. It it
possible that these seperate xscreen settings should be somewhere in
/etc/X11/xorg.conf.d instead?

Can someone say for certain that this even works in Leap?

Thanks
Mark


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Re: Separate xscreens troubles

Mark Hounschell
On 04/03/2018 03:29 PM, Mark Hounschell wrote:

> I'm running Leap 42.3 KDE/Plasma and am having difficulties getting this
> configuration to work as it did/does in SuSE-13.2. I am using Nvidia's
> proprietary driver and its nvidia-settings pgm to configure it. It
> appears to try to work but not good enough. For instance, to just
> describe a couple of things:
>
> I set my display via "export DISPLAY=:0.1" then start an application
> like konsole. It does start on the correct DISPLAY but the
> minimize/maximize and exit buttons don't show up.
>
> If I right click somewhere in DISPLAY :0.1, I get no response like I do
> in 13.2.
>
> Some application buttons in some applications don't show up at all or
> ignored when clicked on.
>
> The nvidia-settings pgm creates an /etc/X11/xorg.conf file. It it
> possible that these seperate xscreen settings should be somewhere in
> /etc/X11/xorg.conf.d instead?
>
> Can someone say for certain that this even works in Leap?
>

Since there was no response about this here or on the opensuse list, a
BUG has been  about this issue. It doesn't work properly on Leap 42.3 or
Leap 15-Beta-187.1. It sure would be nice if this worked on Leap-15
because we are stuck with SuSE-13.2 until it is fixed.

https://bugzilla.opensuse.org/show_bug.cgi?id=1088355

Regards
Mark
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Re: Separate xscreens troubles

Luca Beltrame
In data mercoledì 11 aprile 2018 16:44:38 CEST, Mark Hounschell ha scritto:

> https://bugzilla.opensuse.org/show_bug.cgi?id=1088355

Are you talking about separate screens on separate X servers? This has not
been supported by KWin since a long time.

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Re: Separate xscreens troubles

Mark Hounschell
On 04/11/2018 11:26 AM, Luca Beltrame wrote:
> In data mercoledì 11 aprile 2018 16:44:38 CEST, Mark Hounschell ha scritto:
>
>> https://bugzilla.opensuse.org/show_bug.cgi?id=1088355
>
> Are you talking about separate screens on separate X servers? This has not
> been supported by KWin since a long time.
>

Separate xscreens. Setup via nvidia's "nvidia-settings" pgm. Changing
"twinview" to "seperate xscreens". This works perfect in SuSE-13.2. Not
on ANY version of Leap.

We are talking about a configuration possibly with multiple video cards.
Think 6 video ports. Each with their own xscreen. But a single dual
channel card can easily drive 2 separate monitors each on their own xscreen.

To start an app on a particular xscreen, in this case xscreen-1, "export
DISPLAY=:0.1". Then start the pgm.

Regards
Mark

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Re: Separate xscreens troubles

Luca Beltrame
In data mercoledì 11 aprile 2018 17:37:38 CEST, Mark Hounschell ha scritto:

> Separate xscreens. Setup via nvidia's "nvidia-settings" pgm. Changing
> "twinview" to "seperate xscreens". This works perfect in SuSE-13.2. Not

As I said, this is not supported, and hasn't been for a very long time (we're
talking years). The only supported solution is through xrandr (aka "single
Xserver drawing on all screens", which is what TwinView also does).

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Re: Separate xscreens troubles

Mark Hounschell
In reply to this post by Luca Beltrame
On 04/11/2018 11:26 AM, Luca Beltrame wrote:
> In data mercoledì 11 aprile 2018 16:44:38 CEST, Mark Hounschell ha scritto:
>
>> https://bugzilla.opensuse.org/show_bug.cgi?id=1088355
>
> Are you talking about separate screens on separate X servers? This has not
> been supported by KWin since a long time.
>

Separate xscreens. Setup via nvidia's "nvidia-settings" pgm. Changing
"twinview" to "seperate xscreens". This works perfect in SuSE-13.2. Not
on ANY version of Leap.

We are talking about a configuration possibly with multiple video cards.
Think 6 video ports. Each with their own xscreen. But a single dual
channel card can easily drive 2 separate monitors each on their own xscreen.

To start an app on a particular xscreen, in this case xscreen-1, "export
DISPLAY=:0.1". Then start the pgm.

Regards
Mark

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Re: Separate xscreens troubles

Mark Hounschell
In reply to this post by Luca Beltrame
On 04/11/2018 11:41 AM, Luca Beltrame wrote:
> In data mercoledì 11 aprile 2018 17:37:38 CEST, Mark Hounschell ha scritto:
>
>> Separate xscreens. Setup via nvidia's "nvidia-settings" pgm. Changing
>> "twinview" to "seperate xscreens". This works perfect in SuSE-13.2. Not
>
> As I said, this is not supported, and hasn't been for a very long time (we're
> talking years). The only supported solution is through xrandr (aka "single
> Xserver drawing on all screens", which is what TwinView also does).
>

Well, the support is in there because it almost works. You probably
should phrase it like "no longer maintained" instead of "not supported".

Mark
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