compiz - Nov 2006 - Minor fix to multi-head changes for mixed resolutions

Hey, David, for me the recent multihead changes had minor a problem with mixed
resolutions (1600x1200 & 1280x1024).  The viewport was getting set partially
off screen.

The following tweak fixed it for me:

--- plugins/display.c
+++ plugins/display.c
@@ -2069,7 +2069,7 @@ eventLoop (void)
                    {
                        if (s->nOutputDev > 1)
                            glViewport (s->outputDev[i].region.extents.x1,
-                                       s->outputDev[i].region.extents.y1,
+                                       s->height -
s->outputDev[i].region.extents.y2,
                                        s->outputDev[i].width,
                                        s->outputDev[i].height);
 

I still have a problem with cube and rotate in that my primary head works, but
the second head is a single flat window which rotates at its center point. 
I'll try to look at that next.

Keep up the great work!

...MC

On Wed, 2006-11-01 at 09:02 -0700, Mike Cook wrote:
> Hey, David, for me the recent multihead changes had minor a problem with
mixed resolutions (1600x1200 & 1280x1024).  The viewport was getting set
partially off screen.
> 
> The following tweak fixed it for me:
> 
> --- plugins/display.c
> +++ plugins/display.c
> @@ -2069,7 +2069,7 @@ eventLoop (void)
>                     {
>                         if (s->nOutputDev > 1)
>                             glViewport
(s->outputDev[i].region.extents.x1,
> -                                      
s->outputDev[i].region.extents.y1,
> +                                       s->height -
s->outputDev[i].region.extents.y2,
>                                         s->outputDev[i].width,
>                                         s->outputDev[i].height);
Thanks, I missed that.
>  
> 
> I still have a problem with cube and rotate in that my primary head works,
but the second head is a single flat window which rotates at its center point. 
I'll try to look at that next.
Yes, it's currently only working with heads that have the same
resolution as the primary head. I'll improve it sometime soon...

-David

Hi David, 

I have a dual-head right now and I'm about to compile compiz git to test.
Does your recent changes make separate cubes now for each screen?

Thanks, 
Shawn.

----- Original Message ----
From: David Reveman 
To: Mike Cook
Cc: compiz
Sent: Wednesday, November 1, 2006 12:31:36 PM
Subject: Re: [compiz] Minor fix to multi-head changes for mixed resolutions

On Wed, 2006-11-01 at 09:02 -0700, Mike Cook wrote:
> Hey, David, for me the recent multihead changes had minor a problem with
mixed resolutions (1600x1200 & 1280x1024).  The viewport was getting set
partially off screen.
> 
> The following tweak fixed it for me:
> 
> --- plugins/display.c
> +++ plugins/display.c
> @@ -2069,7 +2069,7 @@ eventLoop (void)
>                     {
>                         if (s->nOutputDev > 1)
>                             glViewport
(s->outputDev[i].region.extents.x1,
> -                                      
s->outputDev[i].region.extents.y1,
> +                                       s->height -
s->outputDev[i].region.extents.y2,
>                                         s->outputDev[i].width,
>                                         s->outputDev[i].height);
Thanks, I missed that.
>  
> 
> I still have a problem with cube and rotate in that my primary head works,
but the second head is a single flat window which rotates at its center point. 
I'll try to look at that next.
Yes, it's currently only working with heads that have the same
resolution as the primary head. I'll improve it sometime soon...

-David

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compiz mailing list
compiz@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/compiz

Great stuff, Thanks.

I just had compiz git crash though. If I use vmware server it somehow got
confused with mouse and started thinking I was 'pressing' buttons and
somehow it started zooming into the desktop without me being able to stop. Then
the keyboard gave out and I had to magic sysrq reboot the box :(

hmm..

Shawn.

----- Original Message ----
From: David Reveman
To: Shawn Starr
Cc: compiz
Sent: Wednesday, November 1, 2006 12:23:34 PM
Subject: Re: [compiz] Minor fix to multi-head changes for mixed resolutions

On Wed, 2006-11-01 at 08:45 -0800, Shawn Starr wrote:
> Hi David, 
> 
> I have a dual-head right now and I'm about to compile compiz git to
test. Does your recent changes make separate cubes now for each screen?
If all heads have the same resolution, it will look like they are
separate views of the same cube. If all heads aren't running at the same
resolution, it will look like they are different cubes (currently broken
though, I'll fix it later today)

Once we have input transformation support in the server we'll be able to
do much more interesting things.

-David

> Hey, David, for me the recent multihead changes had minor a problem with
> mixed resolutions (1600x1200 & 1280x1024).  The viewport was getting
set
> partially off screen.
Can people say what graphics cards they have multihead working on please?

I'm been desparate to get it working with ATI BigDesktop (with different
resolutions) but xgl crashes everytime compiz starts.
I gone through regular updates in hope never with any luck.
To have some sort of informal list of what people have had working would
be nice to have. Maybe such a list already exists?

/mck

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