Bug 126739

Summary: [PATCH] AltGr combinations don't work with some X servers
Product: Red Hat Enterprise Linux 3 Reporter: Bastien Nocera <bnocera>
Component: gtk2Assignee: Matthias Clasen <mclasen>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: 3.0CC: tao
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
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Clone Of: Environment:
Last Closed: 2004-12-21 03:33:46 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 123574    
Attachments:
Description Flags
gdk-keysym-nosymbol4.patch none

Description Bastien Nocera 2004-06-25 15:29:29 UTC 
The problem occurs with some X servers like Hummingbird, ReflectionX
and X-Win32.

The X server is connected to a Linux server running GDM via XDMCP.

When the server is configured to use the Swiss German keyboard layout,
(or the
Swiss French, or the France French for the matter), it is impossible
to enter
any of the Mode_Switched characters within GTK based applications.
Traditional
applications such as XTerm, Emacs operate correctly. A simple test is that
entering AltGr+7 should output a pipe '|'. When gnome-terminal is run with
XFree86 this works, but with ReflectionX it fails.

After thorough investigation this problem has been tracked down to a
bug in the
GDK keyboard translation code. This assumes that the value of
keysyms_per_keycode returned by the XGetKeyboardMapping method is an even
number. On ReflectionX with SwissGerman keyboard layout the value is
3, thus
breaking the code which does lookups into the keycode -> keysymbol map
when
Mode_Switch (AltGr) is pressed.

Patch attached below.
Comment 1 Bastien Nocera 2004-06-25 15:30:32 UTC 
Created attachment 101413 [details]
gdk-keysym-nosymbol4.patch

From upstream.
Comment 2 Bastien Nocera 2004-07-22 15:16:50 UTC 
Added to the blocker candidates.
Comment 4 John Flanagan 2004-12-21 03:33:46 UTC 
An advisory has been issued which should help the problem 
described in this bug report. This report is therefore being 
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, 
please follow the link below. You may reopen this bug report 
if the solution does not work for you.

http://rhn.redhat.com/errata/RHEA-2004-488.html