[ icewm-Bugs-3606251 ] Failing transparency when using compositor

Bugs item #3606251, was opened at 2013-02-27 10:10
Message generated for change (Tracker Item Submitted) made by onli
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https://sourceforge.net/tracker/?func=detail&atid=100031&aid=3606251&group_id=31

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Category: icewm-1.3
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: onli (onli)
Assigned to: Nobody/Anonymous (nobody)
Summary: Failing transparency when using compositor

Initial Comment:
When using a compositor like compton or xcompmgr and a dock like plank or avant-window-navigator, instead of a transparent area around the dock there is black bar. On the same system using another window manager, the docks work fine.

This is observed behavor on Ubuntu 12.04, the current icewm-cvs and icewm-1.37 from the ubuntu-repository, with a Radeon 7850 and fglrx as driver. The same behavior was observed with whatever version of icewm was current  on ubuntu 10.04 (with also an amd-gpu).

If information are missing, please ask.


Screenshot: https://picasaweb.google.com/lh/photo/0TnyVTPmFbDpc0Cg2VfcntMTjNZETYmyPJy0liipFm0?feat=embedwebsite
Discussion about the issue (german): http://www.onli-blogging.de/index.php?url=1267/Simdocks-Daseinsberechtigung.html#c4598

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