Version: 4.3.5 (using KDE 4.3.5) Compiler: gcc-4.3.4 OS: Linux Installed from: Compiled From Sources libkdcraw-4.3.5, which is distributed in kdegraphics-4.3.5, still uses the code from LibRaw-0.7.2. That old version do not support many common cameras, such as the Canon T1i/500D. The following patch updates kdegraphics-4.3.5 to the latest version of LibRaw (it's too long to cut&paste here): http://www.webalice.it/g_pochini/libraw_0.8.5_kdegraphics.patch (177KiB) And this is the script that creates the above patch, provided kdegraphics-4.3.5.tar.bz2 and LibRaw-0.8.5.tar.gz are in the same directory: http://www.webalice.it/g_pochini/libraw_0.8.5_kdegraphics.sh
dcraw.c has now (18th March 2010) been updated to include the latest Canon EOS 550D - see http://sourceforge.net/tracker/index.php?func=detail&aid=2970192&group_id=127649&atid=709089 So LibRaw needs updating to the latest dcraw.c then libkdcraw needs updating to the new LibRaw.
This bug report is old and later versions of kdegraphics include updated libkdcraw.