Comment 30 for bug 298532

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Ivo Roghair (ivo-82) wrote : Re: [i965] reflection plugin freezes systems with Intel GM965

I'm not really sure how to install those, Bryce. I added the PPA, but there seems to be only a "lucid" part of the PPA, and I couldnt find the packages from that specific PPA in Synaptics.

However, I downloaded the daily ISO of 10.04 (which has a kernel >= 2.6.32-14.20), and booted it in a Live environment. I then set up the universe repo's, installed compizconfig-settings-manager and selected the reflection plugin; the system grumbles a bit (no complete freeze like the original bug report, but the mouse moves in a jagged fashion and window decorations are distorted), but after like 20 seconds the X-server gives up and I am placed back at the login screen.

Actually, I ran into this bug, however not via the reflection plugin, but rather using the data visualization software ParaView. It crashes my current system (updated Karmic installation) completely, like the original bug report states, and I can only poweroff the machine. On the Live-Lucid environment (as descibed before), it does not crash but shows the similar jagged mouse-movements followed by an x-server reset -- this similar behavior makes me think it is the same bug.

I can reproduce this bug in ParaView only when using transparent objects. ParaView uses OpenGL for visualization. It only occurs on Intel chipsets, since I can do transparency things with ParaView on e.g. NVidia without problems.

How to reproduce with ParaView: Import a 3D data object, use the 'slice' tool to cut a slice out of the 3D object. If you try to move the slice with the mouse, it will turn half transparent which is the point the system locks up (i.e. on Karmic). That also happens when you set the opacity below 1.00.