Well, it's not my pipeline, it's upstream's ditto.

On 2021-02-17 06:41, Pat Suwalski wrote:
> genesys/low.cpp:636:76: error: unused parameter 'sensor' [-Werror
> =unused-parameter]
> 
> You can either change the compiler flags or change the function
> signature from:
> 
> bool should_enable_gamma(const ScanSession& session, const
> Genesys_Sensor& sensor)
> 
> to:
> 
> bool should_enable_gamma(const ScanSession& session, const
> Genesys_Sensor&)

Yep, that's it. Thanks a lot! (I failed to find the actual log
yesterday.)

> But I don't think that build is important to the distro issue.

Right, it apparently isn't. But I'm disinclined to propose a fix in
Ubuntu only which is not present in Debian and/or upstream. So I
submitted a merge request:

https://gitlab.com/sane-project/backends/-/merge_requests/597

Once that (or something to the same effect) has been committed upstream,
we can include it in Ubuntu 20.04+.

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to simple-scan in Ubuntu.
https://bugs.launchpad.net/bugs/1327801

Title:
  Bightness and contrast settings have no effect

Status in sane-backends:
  Unknown
Status in sane-backends package in Ubuntu:
  Confirmed
Status in simple-scan package in Ubuntu:
  Invalid

Bug description:
  Scanner: Canon, Inc. CanoScan N1240U/LiDE 30
  Ubuntu 14.04, Simple Scan version 3.12.1.

  Adjusting the settings of brightness and contrast has no effect.

  With the default for scanning in "text" mode being too bright, this makes 
"Simple Scan" in text mode unusable for me.
  Brightness and contrast settings don't work in "foto" mode, too. But the 
default of the foto mode is usable.

  Brightness setting does work in program "Skanlite".

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