On 12/16/2015 9:20 PM, Stef wrote: > On 17/12/2015 04:41, Scott Alfter wrote: >> I then put the patch back in (or, more precisely, didn't patch it >> out), recompiled, and tried again under the newer kernel. It seems to >> be running about the same with the workaround as without: an "invalid >> argument" error at 4800 dpi, but it works at 2400 dpi and below. > > before scanning, the scanner calibrates itself. The higher the > resolution, the longer the calibration takes. The calibration data is > then cached , and subsequent scans are faster. That explains the delay > you saw at 2400 dpi. > > For the 4800 dpi scan, what is the scan area used (width, height) ?
The first time, I think I tried a full-page scan (8.5x11"). I then cut it back to 1x1" and still got an error. This morning, I tried again with a smaller scan area. It still errored out at 0.1x0.1", but it worked at 0.05x0.05". I then tried going back to 0.1x0.1", but got an error again. -- Scott Alfter sc...@alfter.us
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