Package: Nautilus Version: 3.26.2-1 When I open a folder containing some jpg or png images in Nautilus, none of image thumbnails are generated. I can see thumbnails for those images all fail under .cache/thumbnails/fail/gnome-thumbnail-factory/
hexdump -C ~/.cache/thumbnails/fail/gnome-thumbnail-factory/49be632c0fdb9c6cf68be6e3b324e0da.png 00000000 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 |.PNG........IHDR| 00000010 00 00 00 01 00 00 00 01 08 06 00 00 00 1f 15 c4 |................| 00000020 89 00 00 00 04 73 42 49 54 08 08 08 08 7c 08 64 |.....sBIT....|.d| 00000030 88 00 00 00 53 74 45 58 74 54 68 75 6d 62 3a 3a |....StEXtThumb::| 00000040 55 52 49 00 66 69 6c 65 3a 2f 2f 2f 68 6f 6d 65 |URI.file:///home| 00000050 2f 64 61 6e 7a 2f 50 69 63 74 75 72 65 73 2f 53 |/danz/Pictures/S| 00000060 63 72 65 65 6e 73 68 6f 74 25 32 30 66 72 6f 6d |creenshot%20from| 00000070 25 32 30 32 30 31 37 2d 31 32 2d 32 33 25 32 30 |%202017-12-23%20| 00000080 32 32 2d 32 38 2d 33 34 2e 70 6e 67 32 12 bf 2e |22-28-34.png2...| 00000090 00 00 00 17 74 45 58 74 54 68 75 6d 62 3a 3a 4d |....tEXtThumb::M| 000000a0 54 69 6d 65 00 31 35 31 34 30 32 31 33 31 35 aa |Time.1514021315.| 000000b0 2c 28 b9 00 00 00 20 74 45 58 74 53 6f 66 74 77 |,(.... tEXtSoftw| 000000c0 61 72 65 00 47 4e 4f 4d 45 3a 3a 54 68 75 6d 62 |are.GNOME::Thumb| 000000d0 6e 61 69 6c 46 61 63 74 6f 72 79 6f 44 55 e0 00 |nailFactoryoDU..| 000000e0 00 00 0b 49 44 41 54 08 99 63 60 00 02 00 00 05 |...IDAT..c`.....| 000000f0 00 01 62 55 32 88 00 00 00 00 49 45 4e 44 ae 42 |..bU2.....IEND.B| 00000100 60 82 |`.| 00000102 I am not 100% sure it is an issue with Nautilus, but it occurs in Nautilus under Gnome 3, Gnome 3 flashback and Xfce. On the other hand, Xfce's file manager thunar can generate thumbnails without any problems. If I open a folder with thunar to generate thumbnails first and then open the same folder with Nautilus, all thumbnails would be displayed fine. Also I can confirm I can generate thumbnails for images using gdk-pixbuf-thumbnailer. This feature worked for me before. It possibly got broken 2 or 3 months ago since gnome-3.26 roll-out. When thumbnailing fails, I don't see any errors in either ~/.xsession-errors or /var/log/messages. It could be an issue with gnome-thumbnail-factory settings but I don't know how it works and I am not sure where I need to look. I am using Debian GNU/Linux buster/sid, Linux 4.14.0-1-686-pae #1 SMP Debian 4.14.2-1 (2017-11-30) i686 GNU/Linux
