Bug 47203

Summary: libxt 1.1.2 breaks xscreensaver
Product: xorg Reporter: Dave <davemorgan353>
Component: Lib/XtAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: high CC: jeremyhu, mail, matthieu.herrb, semmikozod
Version: 7.7 (2012.06)Keywords: regression
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard: 2012BRB_Reviewed
i915 platform: i915 features:
Bug Depends on:    
Bug Blocks: 47255    

Description Dave 2012-03-11 07:38:30 UTC 
libxt 1.1.2 breaks some themes in xscreensaver.  For example select bumps and xscreensaver displays corrupted graphics and reports an error "Warning: Select failed; error code 5".  Downgrading to the previous version of libxt solves the problem.  Rebuiling xscreensaver has no effect.
Comment 1 Alan Coopersmith 2012-03-11 09:43:14 UTC 
I suspect this might be due to the change in
http://cgit.freedesktop.org/xorg/lib/libXt/commit/?id=70bb9e28d37fff4ead4d0a2c672af77059765fa4
that Jeremy applied to fix bug 20048, since that appears to the be the 
change closest to the Select() error handling code in this release.
Comment 2 Jeremy Huddleston Sequoia 2012-03-11 16:13:03 UTC 
If that is the case, I'm curious what fd->revents and fd->events are set to, but lets first confirm that this is the cause.  Dave, can you please build libXt-1.1.2 with 70bb9e28d37fff4ead4d0a2c672af77059765fa4 reverted?
Comment 3 Dave 2012-03-12 00:35:35 UTC 
I will do so this evening when I get home from work.
Comment 4 Christian Hesse 2012-03-12 01:40:29 UTC 
I can confirm the reverting 70bb9e28d37fff4ead4d0a2c672af77059765fa4 fixes it for me.
Comment 5 Dave 2012-03-12 13:57:42 UTC 
I can also confirm that this fixes it.
Comment 6 Jeremy Huddleston Sequoia 2012-03-12 17:34:25 UTC 
Ok, then can you tell me what fd->revents and fd->events are set to?

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