Drag-to-maximize animation shows incorrect preview

Bug #1297978 reported by greg
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Compiz
Invalid
Undecided
Unassigned
Unity
Invalid
Undecided
Unassigned
unity (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

In Ubuntu 14.04, drag-to-maximize shows an incorrect preview animation when dragging a window to the top bar or the sides. The preview animation consists of the window pixmap scaled to the preview outline size, disregarding aspect ratio. The preview pixmap disappears after the animation. It looks really broken, confusing and glitchy.

Earlier Unity versions used a related effect, but with nearly completely transparent windows pixmap rendering, and fadeout of the pixmap over the animation duration, which was mostly okay. It looks like the translucent fading is broken, at the very least.

IMHO scaling the window pixmap this way is not useful at all, though, because it isn't a proper preview of the window after scaling. It might be useful to discuss this elsewhere. For the moment, Unity should simply behave like it previously did in Ubuntu 13.10.

I have put up a demo video here:
https://www.youtube.com/watch?v=k_Md_z0g4RE

Revision history for this message
greg (grigorig) wrote :

In case this is OpenGL driver related for some reason, I can observe this on two different systems, but they both use Radeon GPUs, specifically the r600g driver.

summary: - Drag-to-maximize show incorrect preview with outline
+ Drag-to-maximize animation shows incorrect preview
greg (grigorig)
description: updated
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in unity (Ubuntu):
status: New → Confirmed
Revision history for this message
Taleb Abdelhak (my-rk) wrote :

reinstalled Ubuntu, problem gone

Changed in unity:
status: New → Confirmed
Revision history for this message
Andrea Azzarone (azzar1) wrote :

Closing the bug as for comment #3.

Changed in compiz:
status: New → Invalid
Changed in unity:
status: Confirmed → Invalid
Changed in unity (Ubuntu):
status: Confirmed → Invalid
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