Public bug reported:
First off, i think this bug may be the same as or very similar to this
bug: https://bugs.launchpad.net/bugs/71619
Unfortunately i do not know what package this belongs to.
Steps to reproduce:
- Create two user accounts
- Login to User1
- Login to User2
- In Gnome, via the top panel you should have a clickable menu that lists the
users logged in. Click it and select User1 in order to initiate a switch from
User 2 back to User 1.
Result:
- The screen goes blank for a split second
- The desktop of User1 flashes for a split second (NO GOOD!)
- Screen blacks out and login box comes up (OK)
Expected:
Do not flash the desktop of User1. Confidential information can be seen and
this is def not OK.
[Additional information:]
$ lsmod
Module Size Used by
usbhid 29536 0
hid 28928 1 usbhid
arc4 2944 2
ecb 4608 2
blkcipher 7556 1 ecb
ieee80211_crypt_wep 6272 1
af_packet 24840 4
binfmt_misc 12936 1
ipv6 273892 16
fglrx 656352 60
rfcomm 42136 2
l2cap 26240 11 rfcomm
bluetooth 57060 4 rfcomm,l2cap
cisco_ipsec 558396 0
ppdev 10244 0
powernow_k8 16960 1
cpufreq_ondemand 9612 1
cpufreq_userspace 5280 0
cpufreq_conservative 8072 0
cpufreq_stats 7232 0
freq_table 5792 3 powernow_k8,cpufreq_ondemand,cpufreq_stats
cpufreq_powersave 2688 0
bay 6912 0
battery 11012 0
container 5504 0
ac 6148 0
dock 10656 1 bay
video 18060 0
button 8976 0
sbs 19592 0
sbp2 24072 0
parport_pc 37412 0
lp 12580 0
parport 37448 3 ppdev,parport_pc,lp
joydev 11328 0
snd_hda_intel 291488 1
pcmcia 41388 0
snd_pcm_oss 43008 0
snd_mixer_oss 17664 1 snd_pcm_oss
snd_pcm 80004 2 snd_hda_intel,snd_pcm_oss
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm
snd_hwdep 10244 1 snd_hda_intel
snd_seq_dummy 4740 0
bcm43xx 127336 0
snd_seq_oss 33152 0
snd_seq_midi 9600 0
ieee80211softmac 31360 1 bcm43xx
i2c_piix4 9740 0
snd_rawmidi 25728 1 snd_seq_midi
yenta_socket 27532 1
rsrc_nonstatic 14080 1 yenta_socket
ieee80211 35656 2 bcm43xx,ieee80211softmac
ieee80211_crypt 7040 2 ieee80211_crypt_wep,ieee80211
serio_raw 8068 0
pcmcia_core 40980 3 pcmcia,yenta_socket,rsrc_nonstatic
pcspkr 4224 0
i2c_core 26112 1 i2c_piix4
snd_seq_midi_event 8448 2 snd_seq_oss,snd_seq_midi
snd_seq 53360 6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 24324 2 snd_pcm,snd_seq
snd_seq_device 9228 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
psmouse 39952 0
snd 54788 12
snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
k8temp 6656 0
soundcore 8800 1 snd
ati_agp 10124 0
agpgart 35016 2 fglrx,ati_agp
shpchp 34580 0
pci_hotplug 32704 1 shpchp
evdev 11136 5
ide_cd 32672 0
cdrom 37536 1 ide_cd
ext3 133896 1
jbd 60456 1 ext3
mbcache 9732 1 ext3
sg 36764 0
sd_mod 30336 3
atiixp 7056 0 [permanent]
ide_core 116804 2 ide_cd,atiixp
ohci1394 36528 0
ieee1394 96312 2 sbp2,ohci1394
tg3 110980 0
ehci_hcd 36492 0
ohci_hcd 22916 0
ata_generic 8452 0
ahci 23300 2
libata 125168 2 ata_generic,ahci
scsi_mod 147084 4 sbp2,sg,sd_mod,libata
usbcore 138632 4 usbhid,ehci_hcd,ohci_hcd
thermal 14344 0
processor 32072 2 powernow_k8,thermal
fan 5764 0
fuse 47124 1
apparmor 40728 0
commoncap 8320 1 apparmor
$ lspci
00:00.0 Host bridge: ATI Technologies Inc RS690 Host Bridge
00:01.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (Internal gfx)
00:05.0 PCI bridge: ATI Technologies Inc Unknown device 7915
00:06.0 PCI bridge: ATI Technologies Inc RS690 PCI to PCI Bridge (PCI Express
Port 2)
00:12.0 SATA controller: ATI Technologies Inc SB600 Non-Raid-5 SATA
00:13.0 USB Controller: ATI Technologies Inc SB600 USB (OHCI0)
00:13.1 USB Controller: ATI Technologies Inc SB600 USB (OHCI1)
00:13.2 USB Controller: ATI Technologies Inc SB600 USB (OHCI2)
00:13.3 USB Controller: ATI Technologies Inc SB600 USB (OHCI3)
00:13.4 USB Controller: ATI Technologies Inc SB600 USB (OHCI4)
00:13.5 USB Controller: ATI Technologies Inc SB600 USB Controller (EHCI)
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 14)
00:14.1 IDE interface: ATI Technologies Inc SB600 IDE
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia
00:14.3 ISA bridge: ATI Technologies Inc SB600 PCI to LPC Bridge
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address
Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM
Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron]
Miscellaneous Control
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon X1200 Series
03:01.0 CardBus bridge: O2 Micro, Inc. Cardbus bridge (rev 21)
03:01.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5755M Gigabit
Ethernet PCI Express (rev 02)
0b:00.0 Network controller: Broadcom Corporation BCM94311MCG wlan mini-PCI (rev
01)
I am using a Dell Latitude D531 laptop. Please let me know if i can help
further.
** Affects: ubuntu
Importance: Undecided
Status: New
--
When switching users, Screen is visible for split second before black out.
https://bugs.launchpad.net/bugs/195311
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