[Bug 46913] System hangs when switching user

Vyacheslav Rodionov bepcyc at gmail.com
Sat May 27 14:09:13 UTC 2006


Public bug reported:

Binary package hint: kubuntu-desktop

Bug appears in Kubuntu Dapper.

Can't switch user through KDE's menu "Switch User->Start New Session".

My system freezes after I press "Start New Session". First it switches
to text console and than t hangs up. Nothing helps after it - I even
can't reboot with Ctrl+Alt+Del.

I don't really know what backtraces could help there.
What information about my system is necessary.

Here are the things that maybe helpful:

#xdriinfo
Screen 0: atiogl_a

#fglrxinfo
display: :0.0  screen: 0
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: FireMV 2400 PCI DDR Generic
OpenGL version string: 1.3.1060 (X4.3.0-8.24.8)

#lspci
0000:00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev 03)
0000:00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev 03)
0000:00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
0000:00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
0000:00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
0000:00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 03)
0000:00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
0000:00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 03)
0000:00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 03)
0000:00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) SMBus Controller (rev 03)
0000:00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
0000:00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Modem Controller (rev 03)
0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R250 Lf [FireGL 9000] (rev 02)
0000:02:04.0 Network controller: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter (rev 04)
0000:02:06.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0 CardBus/SmartCardBus Controller
0000:02:07.0 FireWire (IEEE 1394): Texas Instruments TSB43AB21 IEEE-1394a-2000 Controller (PHY/Link)

#lsmod
Module                  Size  Used by
isofs                  38496  0
nls_utf8                2240  1
udf                    94628  0
nfs                   238792  1
bluetooth              54084  0
nfsd                  241316  13
exportfs                6528  1 nfsd
lockd                  67944  3 nfs,nfsd
sunrpc                159484  10 nfs,nfsd,lockd
autofs4                21060  0
speedstep_centrino      8752  0
cpufreq_userspace       6496  1
cpufreq_stats           6688  0
freq_table              4928  2 speedstep_centrino,cpufreq_stats
cpufreq_powersave       1920  0
cpufreq_ondemand        7752  0
cpufreq_conservative     9000  0
video                  16324  0
tc1100_wmi              6884  0
sony_acpi               5580  0
pcc_acpi               12416  0
hotkey                 11492  0
dev_acpi               11236  0
container               4608  0
button                  6704  0
acpi_sbs               20172  0
battery                 9988  1 acpi_sbs
ac                      5220  1 acpi_sbs
i2c_acpi_ec             5120  1 acpi_sbs
i2c_core               22848  1 i2c_acpi_ec
nls_iso8859_1           4224  2
nls_cp437               5888  3
vfat                   14496  3
fat                    55548  1 vfat
reiserfs              284016  1
ipv6                  286912  24
md_mod                 76052  0
ieee80211_crypt_wep     5280  0
ieee80211_crypt_tkip    11296  0
ieee80211_crypt_ccmp     8064  0
sr_mod                 17988  0
sbp2                   24996  0
lp                     12356  0
ide_disk               19200  0
fglrx                 479996  32
pcmcia                 41948  0
joydev                 10432  0
nsc_ircc               25120  0
irda                  217916  1 nsc_ircc
crc_ccitt               2240  1 irda
yenta_socket           30124  1
rsrc_nonstatic         14624  1 yenta_socket
ipw2100                93812  0
pcmcia_core            45272  3 pcmcia,yenta_socket,rsrc_nonstatic
ieee80211              38920  1 ipw2100
ieee80211_crypt         6528  4 ieee80211_crypt_wep,ieee80211_crypt_tkip,ieee80211_crypt_ccmp,ieee80211
snd_intel8x0           35740  4
psmouse                40036  0
snd_ac97_codec         99808  1 snd_intel8x0
snd_ac97_bus            2400  1 snd_ac97_codec
serio_raw               7748  0
parport_pc             37988  1
parport                39400  2 lp,parport_pc
snd_pcm_oss            56448  0
snd_mixer_oss          20544  2 snd_pcm_oss
hw_random               5716  0
snd_pcm                96676  4 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              26884  2 snd_pcm
snd                    60004  10 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              10784  2 snd
snd_page_alloc         11304  2 snd_intel8x0,snd_pcm
shpchp                 49504  0
pci_hotplug            30788  1 shpchp
intel_agp              24700  1
agpgart                36784  2 fglrx,intel_agp
sg                     40096  0
tsdev                   8032  0
evdev                  10176  2
ext3                  148104  3
jbd                    65876  1 ext3
sd_mod                 20448  10
usbhid                 40992  0
ide_generic             1504  0
ohci1394               37524  0
ieee1394              306520  2 sbp2,ohci1394
uhci_hcd               35408  0
ide_cd                 35780  0
cdrom                  41408  2 sr_mod,ide_cd
piix                   11652  1
generic                 5124  0
thermal                13768  0
processor              26344  2 speedstep_centrino,thermal
fan                     4836  0
capability              4968  0
commoncap               7328  1 capability
usb_storage            79488  8
scsi_mod              145960  5 sr_mod,sbp2,sg,sd_mod,usb_storage
ehci_hcd               33800  0
usbcore               137700  5 usbhid,uhci_hcd,usb_storage,ehci_hcd
vesafb                  8636  1
fbcon                  43904  72
tileblit                2784  1 fbcon
font                    8320  1 fbcon
bitblit                 6464  1 fbcon
softcursor              2304  1 bitblit


Steps to reproduce:
1. Start KDE.
2. Enter KDE Menu and select "Switch User->Start New Session".
3. Press "Start New Session" button.

What happens:
4. System hangs up.

** Affects: kubuntu-meta (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

-- 
System hangs when switching user
https://launchpad.net/bugs/46913




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