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Old 07-02-2010, 01:38 AM   #1
Registered: Aug 2004
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Unhappy Strange anti aliasing issue


I have a pc in my office. This pc got a Asus mother board. There is a strange issue with graphics on that pc. Anything which I draw using GIMP or Inkscape is not smooth. If I open that file on other system and just save that with different name, it become smooth.

Earlier I thought its something related to graphic card. So I purchased a new graphic card (nVidia) but still problem is same. I also tried different OS (including Windows XP as system is on dual boot mode) but no luck.

I have attached 2 files. One is saved on that PC and another is from the same file, but I opened that file on second pc and saved that again.

Please suggest what could be the issue.
Attached Thumbnails
Click image for larger version

Name:	Improper.jpg
Views:	24
Size:	36.1 KB
ID:	4018   Click image for larger version

Name:	Proper.jpg
Views:	23
Size:	31.2 KB
ID:	4019  
Old 07-04-2010, 09:11 PM   #2
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Have the various settings (openGL and others) been made identical?
Are there other OSes on one or the other machines? Doesn't look so much as antialiasing as a pixellation/resolution problem. So, I would make all settings identical and then compare again.
Old 07-05-2010, 03:04 AM   #3
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Thanks for your reply. Other machines have identical software configuration and display settings. Thats why its looking more strange to me too.
Old 07-05-2010, 11:46 AM   #4
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The pictures look quite similar here, but the strokes are different.
Just trying to be logical - if opening the file and rewriting it fixes this problem with no further issues, and the box is otherwise perfect, I would suspect
1. Software (,, gimp, whatever)
2. If you compiled plenty of stuff on one box, you could have the problem that your distro is expecting one version of a file, but 'make install' actually placed another version there. This is best solved by upgrading if you can't find it quickly, but can lead to insane faults.

Divide & conquer. If you eliminate gimp, or write .tiffs does the problem go? If you write jpegs does it return?


antialiasing, drawing, gimp, graphic, inkscape, nvidia, windows

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