Re: [Gimp-user] Screen tearing and slow when panning the canvas under windows 7




> Date: Sun, 10 Feb 2013 04:31:48 +0100
> From: forums gimpusers com
> To: gimp-user-list gnome org
> CC: team gimpusers com
> Subject: [Gimp-user] Screen tearing and slow when panning the canvas under windows 7
>
> I have bad screen tearing in gimp 2.8 in windows 7 x64, making it almost
> unusable! (see youtube link: http://www.youtube.com/watch?v=obN-ox8-n1w look
> around 15 seconds into the video )
>
> i just reinstalled windows after using linux for a few months , gimp worked fine
> in linux (ubuntu x64) with the same hardware. i had the problem before in
> windows and i have it again with a fresh install
>
> i have tried gimp 2.8.0, 2.8.2 and the same problem with the new one (2.8.4),
> same problem aswell with gimp 2.9 development builds. gimp 2.6 works fine with
> no screen tearing at all.
>
> hardware specs:
> CPU: Intel® Core™ i5-2500K CPU @ 3.30GHz (3292.53 MHz)
> Memory: 16368 MB
> OS Version: Microsoft Windows 7 64-bit Service Pack 1 (Build 7601)
> Graphics Card Vendor: NVIDIA Corporation
> Graphics Card: GeForce GTX 460/PCIe/SSE2
> Graphics Driver version: 310.90
>
> --
> jarmade (via www.gimpusers.com/forums)
> _______________________________________________
> gimp-user-list mailing list
> gimp-user-list gnome org
> https://mail.gnome.org/mailman/listinfo/gimp-user-list

This is a known issue more or less exclusive to the Windows GIMP, started in 2.8.0 and there's no easy fix in sight yet.  It's like the redraw events trigger faster than they can actually complete themselves, so they pile up and everything grinds to a halt until they finish processing.  It's actually quite harmless to the current image, just very annoying to see happen.

Workaround:  Limit how often you use Spacebar to pan the image (e.g, pan via mousewheel and/or scrollbars); and when you do, be careful about how fast you move your cursor (to prevent the redraws from logjamming).

-- Stratadrake
strata_ranger hotmail com
--------------------
Numbers may not lie, but neither do they tell the whole truth.




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