<div dir="ltr"><div>Povilas,</div><div><br></div><div><br></div><div>As I understand it, that code has never been changed over the last years. Most probably these features have never worked. I tried going back as far as I could, and the issues remained. That is not bitrot.</div><div><br></div><div>It is possible that a different chip worked fine, and that it was assumed that this code would also work for other Genesys Logic chips.<br></div><div><br></div><div>The only way forward is getting a data sheet.</div><div><br></div><div><br></div><div>J.</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Op di 17 sep. 2019 om 17:35 schreef Povilas Kanapickas <<a href="mailto:povilas@radix.lt">povilas@radix.lt</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">It could be that the code has bitrot since it was written as there were<br>
no tests. I noticed that many scanners didn't live up to the<br>
expectations set in the "supported scanners" web page.<br>
<br>
Povilas<br>
<br>
On 9/15/19 11:24 AM, mfoolb bloofm wrote:<br>
> That is actually a bit frustrating considering I chose this model based<br>
> on the 'fully supported from 75 to 4800 dpi' info found on the sane<br>
> supported devices page (consider updating that).<br>
> I don't know how to help for the GL chip datasheet info.<br>
> <br>
> Thanks.<br>
> <br>
> Il giorno sab 14 set 2019 alle ore 19:42 Jeroen Van den Keybus<br>
> <<a href="mailto:jeroen.vandenkeybus@gmail.com" target="_blank">jeroen.vandenkeybus@gmail.com</a> <mailto:<a href="mailto:jeroen.vandenkeybus@gmail.com" target="_blank">jeroen.vandenkeybus@gmail.com</a>>><br>
> ha scritto:<br>
> <br>
> Indeed 1200 and above does not work. If anyone has a datasheet of<br>
> the GL chip used, I may consider looking into it. <br>
> <br>
> It's a problem with the scan head motor that is not moving and<br>
> software waiting forever until it does.<br>
> <br>
> <br>
> On Sat, Sep 14, 2019, 4:39 PM Mikhail Novosyolov via sane-devel<br>
> <<a href="mailto:sane-devel@alioth-lists.debian.net" target="_blank">sane-devel@alioth-lists.debian.net</a><br>
> <mailto:<a href="mailto:sane-devel@alioth-lists.debian.net" target="_blank">sane-devel@alioth-lists.debian.net</a>>> wrote:<br>
> <br>
> 14.09.2019 14:01, mfoolb bloofm пишет:<br>
>> Hello,<br>
>><br>
>> I've just bought a Canon Lide 220 scanner but I can't make it<br>
>> work at 2400 or 4800 dpi.<br>
>> The scanner is supported 100% from 75 to 4800 dpi as of<br>
>> <a href="http://www.sane-project.org/sane-mfgs.html#Z-CANON" rel="noreferrer" target="_blank">http://www.sane-project.org/sane-mfgs.html#Z-CANON</a>.<br>
>> I'm using Ubuntu 19.04 and sane 1.0.27.<br>
>> Tried using simple-scan and genesys library on Gimp (2.10.8),<br>
>> if resolution is 2400 simple-scan freezes same thing on GIMP<br>
>> from 1200dpi and up.<br>
>> I need 2400 or 4800 dpi scan of little areas (2cmx2cm) of<br>
>> documents.<br>
>> Can anyone help me?<br>
>> Thanks.<br>
>> -- <br>
>><br>
>> Marco.<br>
> <br>
> I think I heard something about 2400 DPI on Canon LiDE, but<br>
> don't remember what.<br>
> <br>
> Did you try installing latest sane git snapshot from PPA<br>
> <a href="https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git" rel="noreferrer" target="_blank">https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git</a> ?<br>
> <br>
> <br>
> <br>
> -- <br>
> <br>
> Marco.<br>
<br>
<br>
<br>
</blockquote></div>