The gt68xx backend contains a bug which prevents it from scanning in greyscale mode. The bug is fixed in newer builds. Reproducible: Always Steps to Reproduce: 1. scanimage --preview Actual Results: [gt68xx] gt6816_setup_scan: the scanner's memory is too small for that combination of resolution, dpi and width scanimage: sane_start: Out of memory Expected Results: Scanning a preview
Created attachment 57223 [details, diff] Ebuild-Patch to include gt68xx update
Created attachment 57224 [details, diff] Updated gt68xx-backend (build 67)
Done, thanks!