Mouse jumps to other screen when using "enhanced zoom desktop"

[Lorant Nemeth]

Binary package hint: compiz-fusion-plugins-main

On a dual screen setup with compiz-fusion "enhanced zoom desktop" plugin:
When mouse is close to the other screen (no matter on which one) super + wheel will zoom on level in on the "active screen" (the one where my mouse is), than the mouse will jump over the other screen, so that any further scroll will result in a zoom on the other screen (so at the and the other screen than I wanted will be zoomed will get effected).

To reproduce:
- setup twinview
- setup compiz-fusion
- enable Enhanced Zoom Desktop
- move mouse to ~1cm from the left side of the left screen
- use super + scroll to zoom in

versions:

ii compiz-core 1:0.6.0+git20071008-0ubuntu1.1 OpenGL window and compositing manager
ii compiz-fusion-plugins-extra 0.5.2+git20070928-0ubuntu1 Collection of extra plugins from OpenComposi
ii compiz-fusion-plugins-main 0.5.2+git20070928-0ubuntu2 Collection of plugins from OpenCompositing f
ii compiz-gnome 1:0.6.0+git20071008-0ubuntu1.1 OpenGL window and compositing manager - GNOM
ii compiz-plugins 1:0.6.0+git20071008-0ubuntu1.1 OpenGL window and compositing manager - plug
ii compizconfig-settings-manager 0.5.2+git20070912-0ubuntu1 Compiz configuration settings manager
rc emerald 0.3~git20070717-0ubuntu1 Decorator for compiz-fusion
ii libcompizconfig-backend-gconf 0.5.2+git20071010-0ubuntu1 Settings library for plugins - OpenCompositi
ii libcompizconfig0 0.5.2+git20070919-0ubuntu3 Settings library for plugins - OpenCompositi
rc libemeraldengine0 0.3~git20070717-0ubuntu1 Decoration engines for compiz-fusion
ii python-compizconfig 0.5.2+git20070912-0ubuntu1 Compiz configuration system bindings

[Dmitriy Geels (dmig)]

I confirm this bug. I have dual-head configuration using twinview.
One last step to reproduce: move mouse.

Looks like, problem is in: enhanced zoom plugin takes mouse position on whole desktop, while zooming only active viewport.

[Dmitriy Geels (dmig)]

bug is 100% reproducible, so changing status to confirmed

[MarcoBazzani (visik7)]

same problem here
hope for a fix

[Spoilerhead (spoilerhead)]

confirmed on 8.10 64bit the mouse jumps on every zoom in step and when it reaches the other screen it zooms that screen

[Tobias Axelsson Heia (merald)]

Confirmed on 9.04 32bit with T61P Thinkpad in dock with extern monitor (twinview). Out of the dock on laptop screen it works as it should. Had this problem in 8.04 and 8.10 as well.

[Pinecone (ultimate-pinecone)]

Also happens on 9.04 64bit.

I notice that if my mouse is on the right half of the left monitor or the left half of the right monitor, the mouse will jump to the other monitor, if on the left half of the left monitor or the right half of the right monitor it jumps to the far edge of that monitor, so you can stop it jumping to another monitor by moving the mouse to the far edge before scrolling.

Sorry if that sounds a little confusing :P

[Lorant Nemeth (loci)]

I just upgraded to 9.10. Enhanced Zoom is not working at all. Same like it was in the previous 2 releases. The same problem on both my laptop and dualscreen desktop, both with ubuntu shipped NVIDA drivers. Not even disabling output detection helps.

[Lorant Nemeth (loci)]

On 10.04 it's still the same with both 19x and 260 series of NVIDIA drivers....

[Lorant Nemeth (loci)]

With 10.10, the situation is still the same. One addition:

I didn't check with 10.04 and 9.10, but at least with 10.10 I get the same problem even without dual monitor setup.
Does anybody have any idea what causes the problem and if this going to be corrected ever?

[Alistair Buxton (a-j-buxton)]

This is fixed in 12.04. Unfortunately the ezoom plugin is not bound by default, but if you enable it, it works perfectly.

[Alistair Buxton (a-j-buxton)]

This is now fixed in upstream compiz too (both versions).

[Alistair Buxton (a-j-buxton)]

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