Bug 41804 - Alpha-channel of imported png- and gif-files replaced by solid black
Summary: Alpha-channel of imported png- and gif-files replaced by solid black
Status: RESOLVED DUPLICATE of bug 33114
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
Version:
(earliest affected)
3.5.0 RC1
Hardware: Other All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard: BSA
Keywords:
Depends on:
Blocks:
 
Reported: 2011-10-14 15:47 UTC by Alexander Wilms
Modified: 2012-01-24 13:16 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Attachments
Screenshot (51.33 KB, image/png)
2011-10-14 15:47 UTC, Alexander Wilms 		Details
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Description Alexander Wilms 2011-10-14 15:47:35 UTC 
Created attachment 52351 [details]
Screenshot

Problem description: 

If I insert a GIF or PNG with transparency, the alpha-channel is displayed as black.

Steps to reproduce:
1. Create new document
2. Copy & Paste or import pixel-based image with alpha-channel

Current behavior:
The image doesn't look as it should

Expected behavior:

It should have transparency

Platform (if different than the browser): 
              
Browser: Mozilla/5.0 (X11; Linux i686; rv:7.0.1) Gecko/20100101 Firefox/7.0.1
Comment 1 tester8 2011-10-20 13:30:51 UTC 
NOT reproduced with

LO 3.4.3 OOO340m1 (Build:302)
Ubuntu 10.04.3 x86
Linux 2.6.32-34-generic Russian UI

Alexander, what is your distribution (Ubuntu, Debian, SUSE, etc.), DE, X server version? Please post result of following commands:

uname -a
X -version
Comment 2 Alexander Wilms 2011-10-21 10:31:24 UTC 
LibreOffice: LibreOffice 3.4.3 OOO340m1 (Build:302)
OS: Ubuntu 11.10
Kernel: Linux 3.0.0-12-generic
DE: Gnome 3 (Unity)
X version: 1.10.4

Output of uname -a:

Linux alexander-Compaq-Presario-CQ56-Notebook-PC 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686 athlon i386 GNU/Linux

Output of X -version:

X.Org X Server 1.10.4
Release Date: 2011-08-19
X Protocol Version 11, Revision 0
Build Operating System: Linux 2.6.24-29-server i686 Ubuntu
Current Operating System: Linux alexander-Compaq-Presario-CQ56-Notebook-PC 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:50:42 UTC 2011 i686
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.0.0-12-generic root=UUID=7094bf37-0c55-491b-97c0-97600a377233 ro quiet splash vt.handoff=7
Build Date: 29 September 2011  12:48:48AM
xorg-server 2:1.10.4-1ubuntu4 (For technical support please see http://www.ubuntu.com/support) 
Current version of pixman: 0.22.2
	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Comment 3 Alexander Wilms 2011-12-23 20:03:30 UTC 
This issue still persists in version 3.5.0, but only regarding copy/paste. Importing works as expected.
Comment 4 tester8 2012-01-20 14:50:31 UTC 
LOdev 3.5.0rc1
e40af8c-10029e3-615e522-88673a2-727f724
Ubuntu 10.04.3 x86
Linux 2.6.32-37-generic Russian UI

Still NOT reproduced. Unity or 11.10 or i-dont-know-what specific.
Comment 5 Sebastian Held 2012-01-24 13:12:21 UTC 
LibreOffice 3.5.0rc1
350m1(Build:11)

Reproduced.

This bug affects many others see: #33114, #36097, #36098, #38434 (which field to fill "Depends on" or "Blocks"?)

The cause is:
The program with the image source puts this image into the clipboard. It provides various formats ("image/png", "image/bmp", ...).

LibreOffice is only able to paste "Bitmaps" not pngs nor other advanced formats (it certainly can import them, but that is an other story!)

This is a BUG and leads to a black background by pasting or by using drag&drop.
Comment 6 Sebastian Held 2012-01-24 13:16:27 UTC 

*** This bug has been marked as a duplicate of bug 33114 ***