[Saucy] 15s delay between login and desktop appearing

[Stefan Bader]

I noticed on several machines that the time between login through lightdm and the desktop graphics to appear seems to have grown quite a bit. On a i386 netbook with i915 graphics it takes about 15 seconds. On a 64bit Atom based machine with gma500_gfx it even takes longer.
During that time only the mouse pointer and a dark background are visible.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: compiz 1:0.9.10+13.10.20130828.2-0ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-3.8-generic 3.11.0-rc6
Uname: Linux 3.11.0-3-generic i686
NonfreeKernelModules: wl
.tmp.unity.support.test.0:

ApportVersion: 2.12.1-0ubuntu3
Architecture: i386
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Tue Sep 3 15:39:16 2013
DistUpgraded: Fresh install
DistroCodename: saucy
DistroVariant: ubuntu
DkmsStatus:
 bcmwl, 6.30.223.30+bdcom, 3.11.0-1-generic, i686: installed
 bcmwl, 6.30.223.30+bdcom, 3.11.0-3-generic, i686: installed
 bcmwl, 6.30.223.30+bdcom, 3.11.0-4-generic, i686: installed
GraphicsCard:
 Intel Corporation Mobile 945GSE Express Integrated Graphics Controller [8086:27ae] (rev 03) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:3870]
   Subsystem: Lenovo Device [17aa:3870]
InstallationDate: Installed on 2013-08-09 (25 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha i386 (20130807)
MachineType: LENOVO 20021,2959
MarkForUpload: True
PackageArchitecture: all
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-3-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash intel_idle.max_cstate=1 vt.handoff=7
SourcePackage: compiz
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/17/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 19CN1AWW
dmi.board.name: MoutCook
dmi.board.vendor: LENOVO
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvr19CN1AWW:bd06/17/2009:svnLENOVO:pn20021,2959:pvrLenovoIdeapadS12:rvnLENOVO:rnMoutCook:rvrNotApplicable:cvnLENOVO:ct10:cvrN/A:
dmi.product.name: 20021,2959
dmi.product.version: Lenovo Ideapad S12
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.10+13.10.20130828.2-0ubuntu1
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.14.2.901-2ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.21.14-4ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
xserver.bootTime: Tue Sep 3 10:51:53 2013
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 37396
 vendor AUO
xserver.version: 2:1.14.2.901-2ubuntu4

[Stefan Bader (smb)]

Here is a bootchart from this morning. I guess either that shell or gtk-windows -decorators process started by compiz mark the end of the black screen period. Compared to older bootcharts that shell is started much later and also the other process does start sooner. Both now seem to be blocked to start by "something".

[Stefan Bader (smb)]

Same after upgrading the kernel to latest.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.