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I tried to add a raster layer to my QGiS dufour(memory size of the image was 52 MB) and the desktop freezed. It is not just QGIS,I have also tried to open this image via image viewer and it has also caused desktop to freeze.

Any ideas how to fix this?

Thanks in advance!!!

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happenes to me even. maybe its your RAM – user204653 Dec 9 '13 at 12:01
    
If it was RAM,then it would be a problem for windows too,but windows is working fine,so i think it's not RAM. – Luka Dec 9 '13 at 13:04
    
please tell your system specifications – user204653 Dec 9 '13 at 13:56
    
Intel® Core™ i5-2450M CPU @ 2.50GHz,4 GB DD3, Nvidia GT 525m and integrated intel graphics, do you need more info? – Luka Dec 9 '13 at 17:16
    
are you using 64 bit ubuntu? – user204653 Dec 10 '13 at 10:36

Change your viewer from EOG to GPICVIEW .

I had the same problem. Large images (3000x3000, roughly 3-5M on a RAM set of over a gig), causing total desktop lockup (requiring shutdown and restart). I thought RAM was going bad so I did memtest and no. I thought my drive might be bad so I did Disk Utility check and no.

I hope this helps.

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