Created attachment 90164 [details]
Incorrect displayed thumbnail.
Thumbnails of raw CR2 pictures in default size are not displayed correctly in Nautilius
After zooming in 3x times, the thumbnail is being displayed correctly.
Link of an example picture which does not work:
Link of the bug filed in gthumb:
Created attachment 90165 [details]
Not correctly displayed thumbnails.
it looks like the 500px wide preview in 8RGB is not properly decoded.
It doesn't seem to be isolated to the PowerShot S100. :-(
I think the simple solution will be to just blacklist these 8RGB previews.
I would not call it a solution, but temporarily workaround ;-)
no. it would be a solution. The bigger thumbnail is JPEG and perfectly fine.
Just to add: the RGB8 thumbnail isn't even accurate as it. Colors are off (possibly just in the wrong colorspace) and when the file is shot as "B&W" it doesn't give a B&W preview unlike the JPEG.
I actually never paid attention this, but for consistency it is better to not expose it.
Fixed in 871c5724c3c3dc868719c287f440e355ac623850 (master)