gThumb supports viewing raw images. I tried to view images of my new Panasonic Lumix, but gThumb displays only a generic image icon instead of a picture.

Is this a problem of my gThumb installation (I thought raw support is built-in?) or can't gThumb handle Panasonics *.rw2?

I'm using gThumb 3.4.3 on elementaryOs 0.4 (Loki) [based on Ubuntu 16.04]


  • dcraw -e myphoto.rw2 extracts an preview image, so there is one.
  • geeqie shows the embedded image as expected

So, it's a problem with gThumb. How can I solve it? I would like to use gThumb instead of shotwell or geeqie.

  • \$\begingroup\$ Alternative: Use geeqie. But both programs don't show the RAW, but the internal JPEG preview. \$\endgroup\$
    – pLumo
    Commented Aug 22, 2017 at 11:23
  • \$\begingroup\$ Installed geeqie. It shows the internal JPEG, but gThumb doesn't. Strange. Nevertheless I'd like to use gThumb… \$\endgroup\$
    – Kurztipp
    Commented Aug 22, 2017 at 15:49


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