XnView Software

EDIT:
But there is another setting in View > View > Camera RAW, use ; if this is set to "Full size", also the first setting in Formats > Read > Camera RAW sticks, and the program does open the raw file. With a false warning "This picture will be converted ..."

You're right. I recall the warning ...

Thanks for quick response. Yes. I just tested both 0.86 and 0.85 again to be sure.

0.86 is installed on Mint 18.2/Ubuntu 16.04 on two desktop environments - Cinnamon and XFCE. When I set Use to Full SIze it seems to stay that way until the dialog box is closed. But then it does not open RAW/DNG in ...

I've been successfully using XnViewMP 0.85 on Linux Mint 18 (Ubuntu 16.04) to open *.DNG image files in "FULL" rather than thumbnail - this is set in Tools > Preferences > Interface > Formats > Camera RAW > Use "FULL". Now after installing 0.86 when I change the default "THUMBNAIL" setting to "FULL ...