[Bug 299755] New: After latest X upgrades the Level Tools upgrade is a solid color (black, white, gray)

https://bugs.kde.org/show_bug.cgi?id=299755

            Bug ID: 299755
          Severity: critical
           Version: unspecified
          Priority: NOR
          Assignee: [hidden email]
           Summary: After latest X upgrades the Level Tools upgrade is a
                    solid color (black, white, gray)
    Classification: Unclassified
                OS: Linux
          Reporter: [hidden email]
          Hardware: Compiled Sources
            Status: UNCONFIRMED
         Component: AdjustLevels
           Product: digikamimageplugins

Created attachment 71001
  --> https://bugs.kde.org/attachment.cgi?id=71001&action=edit
Screenshot of the issue

Hi,

I am running Slackware current64 and after the latest batch of updates I
noticed the level tools output is a solid color. I tried changing settings but
that only affects the color output (for example it turns gray)

I recompiled Digikam 2.5.0 but it didn't help. I compiled and installed digikam
2.6.0rc and I get the same behavior.

I'll add a few details, let me know what else should I provide. I'm at a loss
even where to begin searching.
xorg-server-1.12.1, 64 bit slackware current, kernel 3.2.13, i7 quad core cpu,
16gb of ram

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=299755

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
           Severity|critical                    |normal

--- Comment #1 from Gilles Caulier <[hidden email]> ---
No reproducible here under Mageia Linux or MacosX or Windows. Levels Tool work
perfectly with 2.6.0RC release.

Sound like a SlackWare version, probably with Qt4 library which is used to
display preview effects.

Gilles Caulier

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[Marcel Wiesweg]

https://bugs.kde.org/show_bug.cgi?id=299755

Marcel Wiesweg <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
                 CC|                            |[hidden email]
     Ever confirmed|0                           |1

--- Comment #2 from Marcel Wiesweg <[hidden email]> ---
Due to a known bug in current git, for all color channels the input interval is
reset to 0..0
Matthias is working on a fix (or is it already fixed? Matthias if you dont have
time we must revert the initial patch before 2.6 final)

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--- Comment #3 from silviu vulcan <[hidden email]> ---
(In reply to comment #2)
> Due to a known bug in current git, for all color channels the input interval
> is reset to 0..0
> Matthias is working on a fix (or is it already fixed? Matthias if you dont
> have time we must revert the initial patch before 2.6 final)

Thank you for the answers. Still I suspect there is another issue here as well
because 2.5 used to work fine for me until some package upgrades (x related,
I'm sorry I don't know for sure which, but I'm sure no updates to QT or KDE)
Now, even after recompiling neither 2.5 neither 2.6rc works for me.

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[Matthias Welwarsky]

https://bugs.kde.org/show_bug.cgi?id=299755

--- Comment #4 from Matthias Welwarsky <[hidden email]> ---
Git commit df205b9cc36c47058b77d5ccdb3ca4d236c48414 by Matthias Welwarsky.
Committed on 10/05/2012 at 20:15.
Pushed by welwarsky into branch 'master'.

Add kconf_update script to prevent black image in adjustlevels

This update script reverts adjustlevels configuration to the default
by removing the respective config group from digikamrc. It prevents
showing a black image in adjustlevels tool after updating to 2.6.0

M  +2    -0    imageplugins/color/CMakeLists.txt
A  +6    -0    imageplugins/color/adjustlevelstool.upd

http://commits.kde.org/digikam/df205b9cc36c47058b77d5ccdb3ca4d236c48414

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--- Comment #5 from silviu vulcan <[hidden email]> ---
Thank you,

It must have been triggered by testing 2.6 and not slackware upgrades. Anyways
I removed [adjustlevels Tool]
...
...

from ~/.kde/share/config/digikamrc and now the levels tool behaves again.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=299755

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|CONFIRMED                   |RESOLVED
   Version Fixed In|                            |4.0.0
         Resolution|---                         |FIXED

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=299755

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Latest Commit|                            |http://commits.kde.org/digi
                   |                            |kam/df205b9cc36c47058b77d5c
                   |                            |cdb3ca4d236c48414

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[bugzilla_noreply]

https://bugs.kde.org/show_bug.cgi?id=299755

[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|Adjust Levels               |Tool-Levels
            Product|digikamimageplugins         |digikam

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