Re: [Gimp-developer] Poor Display-Performance of Gimp 2.8 on Windows

[Kurt Pruenner <leak gmx at>]

On 21.05.12 19:45, Claus (Gimp-Devel-List) wrote:
>> Am 21.05.2012 17:54, schrieb Michael Schumacher: If this is the
>> color-management-related problem, then yes: 
>> https://bugzilla.gnome.org/show_bug.cgi?id=645345
> 
> I disabled the view-filter for the colour-management (as "gfxuser"
> described before), and it seems not to change anything.
> Interestingly, on this machine (Vista 64Bit) I don't see lag with the
> rectangular-selection-tool (compared to my Windows 7 64Bit machine at
> home). But when I move (MMB) the image in the window, it still breaks
> apart completely (like on my home machine). To give you an impression
> what it looks like, I uploaded a screenshot of this issue onto my
> website:
> 
> http://www.cb-computerservice.at/downloads/display-corruption-gimp28.png
>
>  Any more things I can try on this one? Maybe the slow
> rectangular-select-tool issue is only on Windows 7, and my problem
> here is on all windows versions (also happened in XP 32Bit in
> Virtualbox)?

I reported the same thing for 2.8-RC1 on Windows (including a video of
the problem in action):

> I just downloaded Jernej Simončič's windows build of 2.8.0-RC1 and found
> that both on my tablet running Windows 7 with Intel HD3000 graphics as
> well as on my desktop, also running Windows 7 but with an ATI Radeon
> 5870, panning around an image looks really weird once you pan too fast:
> 
> http://img441.imageshack.us/img441/6317/gimppanartifacts.jpg
> 
> A screenshot doesn't really do it justice, though, so I've also made a
> ~30 second screen capture video:
> 
> http://youtu.be/gpARpvEDH0Y?hd=1
> 
> I'm just holding down the middle mouse button and panning the 100%
> zoomed image around.
> 
> The same thing also happened using one of Partha's recent 2.7.x builds.
> 
> Does anyone else get similar results? Panning in 2.6.x was smooth as
> butter for me... :/

Should one of us go ahead and file a bug?

-- 
Kurt Bernhard Pruenner --- Haendelstrasse 17 --- 4020 Linz --- Austria

np: Squarepusher - 4001 (Ufabulum)