Gnome3- image rendering is slow,garbled and often stuck in Firefox like Applications

deepclutch · 11-27-2011, 06:09 AM

I am using Gnome3 with Debian Testing. Upgraded to Gnome3 recently.

Gnome3 is working Fine. I have Nvidia drivers also installed and working fine.

The Problem is, with some Applications particularly applications like Shotwell,Eye of Gnome(eog) etc, if I zoom in or out a image, it gets stuck and stay like that until I do anything like moving mouse to the "Activites" corner or launching another application etc etc.

Below is a screenshot with eog loading a image, when I tried zoom out the image. Look at the word "Haq" which is rendered garbled :
http://i42.tinypic.com/dpetg9.png

The Problem with Iceweasel(Firefox) browser is almost nearing unusable state. the pages gets garbled sometimes if I scroll through them.
eg:
I was adding a Youtube video to a forum thread elsewhere, and then Iceweasel acted as expected. garbled in the sense, I meant misaligned page! below screenshot was taken when I submitted the video to the forum thread and waited for the page reloading. this kind of performance degradation remains for even 10seconds in Iceweasel with Gnome3. see the circled area.

http://i39.tinypic.com/29wa3wl.png

After a Suggestion, I tried upgrading mutter window manager to 3.2.x and gnome-shell and allieds also is currently at 3.2.x from Debian unstable repository.

While, in Gnome "Fallback" Mode and with Compiz also, Applications render images,pages correctly and smoothly.

Someone Hints issue may be with "mutter" window manager or "clutter" opengl library Gnome3 is based on?

What May be the Reason. Help needed. Even if I can understand what packages are causing this problem, I can send a Bug report to Debian upstream packaging team regarding this.

Thanks In Advance

deepclutch · 12-09-2011, 01:11 AM

after a lot of updates to gnome-shell and like packages, still the issue is persistent. is there any one facing this issue?

deepclutch · 01-18-2012, 01:40 AM

I think, a Video of what is Happening when I slowly Scroll using mousewheel(usb mouse) through Firefox/Iceweasel web page will be helpful.

Here is a Desktop screen capture video I recorded which will elucidate the issue faced. Please see the video- avi format(Zip 4MB):
http://www.mediafire.com/?liie7lj3bo6d4rw

Rod J · 01-27-2012, 09:12 PM

It looks like a video sync issue. I've got a feeling it has something to do with the nVidia drivers settings. Have you got vsync ticked in the nVidia control panel? Does the refresh setting match the monitor's requirements? Pretty basic questions I guess and you've probably checked those out already.

deepclutch · 01-28-2012, 01:36 PM

yes. it is a issue with "mutter" window manager which is integrated to gnome-shell. curiously, only nvidia drivers are having this issue. I've reported already to Debian and nvidia Bug tracking.

More Details:
Here is a Desktop screen capture video I recorded which will elucidate the issue faced. Please see the video(Zip format 4MB):
http://www.mediafire.com/?liie7lj3bo6d4rw

Debian bug report:
http://bugs.debian.org/cgi-bin/bugre...?bug=656334#10
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=656334

Please consider reporting this bug to Debian BTS if You are also facing this issue.

Here is the link to nvidia bug report:
http://www.nvnews.net/vbulletin/show....php?p=2501366

deepclutch · 05-13-2012, 02:34 PM

IMPORTANT:
People facing this issue with image rendering in browser and other applications, Kindly register with http://www.nvnews.net/vbulletin/ and Help the Nvidia developer Hopefully fix this bug ASAP. Nvidia Developer is Listening.
link:
link: post in this thread:
http://www.nvnews.net/vbulletin/showpost.php?p=2550776
http://www.nvnews.net/vbulletin/show...6&postcount=27

We may need more people who faces this bug to give more inputs. Note that irrespective of distro this issue is prevalent. be it Ubuntu,Fedora or Debian.

This issue is crippling Gnome-Shell experience from Day 1. Hopefully it will be fixed this time.