I'm using Epson Perfection 4490 Scanner with iscan 2.21.0 and firmware installed with the ebuild media-gfx/iscan-plugin-gt-x750 taken from this bug report: http://bugs.gentoo.org/show_bug.cgi?id=277117. When ever I'm trying to use pdf or jpeg as output format the program crashes with memory violation error. Other formats are working fine. Reproducible: Always Steps to Reproduce: 1. emerge =media-gfx/iscan-2.21.0 2. emerge media-gfx/iscan-plugin-gt-x750 3. iscan 4. push the scan button and choose the pdf or jpeg as output format Actual Results: The program is crashing just after scanning the marked part of the document or photo with memory violation msg. The scanner stops after this leaving the device in unstable state: the scanning device stops in the place when photo or documents ends. Expected Results: Scanning should work fine (It does with newer version of iscan) I manage to solve this issue by using newer version of iscan 2.23.0 with the same firmware (installed by the same ebuild). I will write separate bug report with bump version request, and link it here.
Version bump request: http://bugs.gentoo.org/show_bug.cgi?id=302624
new version in portage. I close that bug now. if your problem still exists, feel free to reopen.