Bug 352491

Summary:	"gdmflexiserver -n" doesn't work
Product:	[Fedora] Fedora	Reporter:	Jeff Needle <jneedle>
Component:	gdm	Assignee:	Ray Strode [halfline] <rstrode>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide
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Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	Bug Fix
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Last Closed:	2007-11-05 05:19:08 UTC	Type:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Jeff Needle 2007-10-25 15:18:10 UTC

Description of problem:

gdmflexiserver -n just gives me an error, "The nested X server is not available,
or GDM is badly configured. Please install the Xnest package in order to use the
nested login."

$ gdmflexiserver -dd -n

gdmflexiserver[2941]: DEBUG: Sending command: 'VERSION'

gdmflexiserver[2941]: DEBUG:   Got response: 'GDM 2.19.8'

gdmflexiserver[2941]: DEBUG: Sending command: 'AUTH_LOCAL
d83922225c358cec8790f8c411c583f4'

gdmflexiserver[2941]: DEBUG:   Got response: 'OK'

gdmflexiserver[2941]: DEBUG: Sending command: 'FLEXI_XNEST :0 3276
d83922225c358cec8790f8c411c583f4 /tmp/.gdmTLOZYT'

gdmflexiserver[2941]: DEBUG:   Got response: 'ERROR 6 No server binary'

gdmflexiserver[2941]: DEBUG: Sending command: 'CLOSE'



Version-Release number of selected component (if applicable):

$ rpm -qf `which Xnest`

xorg-x11-server-Xnest-1.3.0.0-33.fc8.i386



How reproducible:
Happens on 2 i386 rawhide machines 100% of the time.  gdmflexiserver without the
-n works as expected.  Disabling SELinux doesn't have any effect.

Comment 1 Ray Strode [halfline] 2007-10-25 16:15:20 UTC

does 

yum install /usr/bin/Xephyr

fix things?

Comment 2 Jeff Needle 2007-10-25 16:29:38 UTC

No, same behavior.

Comment 3 Matthias Clasen 2007-10-25 18:19:10 UTC

Could that be because of 

Xnest=

in /usr/share/gdm/defaults.conf ?

Comment 4 Jeff Needle 2007-10-25 18:32:53 UTC

Tried setting that to both Xephyr and Xnest (both of which are installed) and it
didn't make a difference.

Comment 5 Matthias Clasen 2007-10-25 23:45:10 UTC

I set it to 

Xnest=/usr/bin/Xnest -audit 0 -name Xnest

and now it started to work

Comment 6 Jeff Needle 2007-10-26 00:21:14 UTC

Argh.  Yeah, that works.  /usr/X11/bin/Xnest doesn't.  Because it doesn't exist.
 Which is why setting it to that isn't a useful test.

So, defaults.conf needs a tweak.  Easy enough.

Comment 7 Matthias Clasen 2007-10-26 00:56:58 UTC

defaults.conf is untouchable. Edit /etc/gdm/custom.conf instead.
The only one who can touch defaults.conf is Ray. 
Ray - do we want to set the Xnest command in defaults.conf ?

Comment 8 Ray Strode [halfline] 2007-10-26 06:07:05 UTC

actually gdm has no ACL on it.  Anyone can touch defaults.conf.

I can do it though.  Makes a lot of sense to fix this before F8.

Comment 9 Matthias Clasen 2007-11-05 05:19:08 UTC

It appears that we are setting Xnest in defaults.conf now