Bug 468776

Summary:	Black screen after select switch user
Product:	[Fedora] Fedora	Reporter:	Michael <midnighterdev>
Component:	kdebase-workspace	Assignee:	Than Ngo <than>
Status:	CLOSED WORKSFORME	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	10	CC:	bitmage, fedora, jreznik, kevin, lorenzo, ltinkl, rdieter, than, tuxbrewr
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-12-02 05:23:59 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:

Description Michael 2008-10-27 22:21:27 UTC

Description of problem:

I have a notebook HP Compaq 6720s (KE110EA). After I select the "Switch user" in menu for begin a new session I have see a black screen. 

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

Fedora 10 rawhide

How reproducible:

Steps to Reproduce:
1. start system
2. enter in KDE
3. select "switch user" in menu
4. see black screen
  
Actual results: black screen


Expected results: another session


Additional info:

[midnighter@localhost ~]$ lspci
00:00.0 Host bridge: Intel Corporation Mobile GME965/GLE960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GME965/GLE960 Integrated Graphics Controller (rev 0c)
00:19.0 Ethernet controller: Intel Corporation 82562GT 10/100 Network Connection (rev 03)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
10:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 02)

Comment 1 Bug Zapper 2008-11-26 04:19:52 UTC

This bug appears to have been reported against 'rawhide' during the Fedora 10 development cycle.
Changing version to '10'.

More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

Comment 2 Brian Daniels 2008-11-28 16:19:44 UTC

I can confirm this on F10 x86_64.  It's not actually just a black screen, it's the current screen saver.

I was able to work around this by creating /etc/sysconfig/desktop containing:
DESKTOP="KDE"
DISPLAYMANAGER="KDE"
and restarting my system.  After that is done clicking on Switch User brings up krunner (?!) where I can choose the new session option.

For some reason my primary desktop is on CTL-ALT-F1.  The new session ends up on F7.

If you don't have the /etc/sysconfig/desktop file then neither the menu or krunner options will let you start a new session.

Comment 3 Rex Dieter 2008-12-02 05:23:59 UTC

comment #2 is on the money.  KDE's user switching feature requires use of kdm DISPLAYMANAGER.