[Xfce-bugs] [Bug 922] New: Wierd "banding" problem rendering smooth gradients in desktop backdrop and gqview

bugzilla-daemon at xfce.org bugzilla-daemon at xfce.org
Mon Apr 25 01:36:55 CEST 2005

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           Summary: Wierd "banding" problem rendering smooth gradients in
                    desktop backdrop and gqview
           Product: Xfce
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: general
        AssignedTo: xfce-bugs at xfce.org
        ReportedBy: re2824 at safe-mail.net


I use a jpeg image with a smooth gradient (http://www.sadeem.net/wp/linux.jpg)
for my desktop backdrop, but it doesn't appear to be displayed correctly
whenever I use it for my desktop backdrop or when  I view it in gqview. Whenever
I view the same jpeg image in either firefox of epiphany, it looks fine. It's
quite difficult to explain in words - I think the attached screenshot should
make sense however.

I get exactly the same results from the xfld live cd, from ubuntu hoary's
"native" xfce packages, and from debian testing with the debian packages at

Reproducible: Always
Steps to Reproduce:
1. Fresh install of xfce
2. Download http://www.sadeem.net/wp/linux.jpg
3. View image in web browser (firefox/epiphany) and in gqview. Also set it as
the desktop backdrop.

Actual Results:  
There's a "banding" problem visible in gqview and in the desktop backdrop, but
the  image looks fine in epiphany/firefox.

Expected Results:  
The image should look the same in all three situations.

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