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Bug 685292 - Jerky screen shield movement
Jerky screen shield movement
Status: RESOLVED OBSOLETE
Product: gnome-shell
Classification: Core
Component: lock-screen
3.6.x
Other Linux
: Normal normal
: ---
Assigned To: gnome-shell-maint
gnome-shell-maint
Depends on:
Blocks:
 
 
Reported: 2012-10-02 13:59 UTC by Allan Day
Modified: 2012-11-05 10:07 UTC
See Also:
GNOME target: ---
GNOME version: 3.7/3.8



Description Allan Day 2012-10-02 13:59:56 UTC
The movement of the shield is often jerky as it raises or lowers. The slide really needs to be smooth.
Comment 1 Jasper St. Pierre (not reading bugmail) 2012-10-02 18:24:44 UTC
uh, OK.

"It's smooth for me"
Comment 2 Jakub Steiner 2012-10-03 06:02:46 UTC
Going to the overview is super smooth, while there's a glitch or two during the curtain fall. It definitely jumps around half way through. Feels like just before the auth form is revealed and/or covered.
Comment 3 Stefan Knorr 2012-10-29 20:59:57 UTC
Can reproduce this, it happens only occasionally, though. Most of the time, it's smooth, and sometimes, it just jumps up (i.e. from one frame to the next). I think I've never seen the animation become jerky when it goes downward, though.

I am not 100% sure, but it might have something to do with when my notebook has just woken up and is on battery.
(I use a 2008 Lenovo T400, with Intel Graphics)
Comment 4 Stéphane Démurget 2012-11-03 22:43:04 UTC
Allan, Jakub: do you still reproduce with Rui's change about tweaking curtain animation timings?

This was for bug 686745 : http://git.gnome.org/browse/gnome-shell/commit/?id=b936e60876cf47d96bcc97c8f3db941747f4a614

I did not have the issue from the start, but it's nearly twice faster and not linear, so you certainly do not see the problem anymore?
Comment 5 Jakub Steiner 2012-11-04 17:07:45 UTC
It's a lot better when sped up. Although you can still see the stutter, it's in the good enough threshold for me.
Comment 6 Allan Day 2012-11-05 10:07:07 UTC
(In reply to comment #5)
> It's a lot better when sped up. Although you can still see the stutter, it's in
> the good enough threshold for me.

OK, let's close for now. We can always reopen if we decide that it's good enough.