64-bit Ubuntu 12.04 may hang at user login screen

Asked by tiar on 2012-11-11

Sometimes 64-bit Ubuntu 12.04 may hang at user login screen. This may happen on 32-bit version as well, but I can not confirm this.

The hang may last up to 45 seconds and after that everything works normally: user desktop picture is shown, volume indicator seems to be working and it is possible to type the password and log in.

But, this is not the end of the story. Now, volume indicator looks like the sounds are muted, but it is still possible to hear everything normally. At this state, some programs may hang. Firefox is one example. Details exactly as stated here:


I am sure it has nothing to do with low resources. My computer specs are: Intel Core2 Duo E8400 @ 3.00GHz with 4GB RAM and GeForce GTX 560. I must add that my sound card is Creative Sound Blaster X-Fi Platinum Fatal1ty Champion.

Other example of an other program hang is OpenArena. It may hang even up to 30 minutes before it is playable.

On contrary, this never happens on my laptop (32-bit Ubuntu 12.04, Intel Core2 Duo @ 2.00GHz with 4GB RAM and ATi Mobility Radeon HD 3400 with integrated sound chip.)

Reboot fixes this issue randomly. One day the computer may boot perfectly, other day it hangs. Reboot may fix it or I have to reboot again. Usually everything works normally at least on 3rd reboot or so.

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Ubuntu xserver-xorg-video-nv Edit question
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There isn't enough specific information for a bug report, here. I don't know what is happening on your system, but maybe someone volunteering with questions & answers can help narrow down what's going wrong for you, and help either fix it, or get a workable bug report ready. Thanks.

Can you give the output of:

sudo lshw -C display; lsb_release -a; uname -a


tiar (tiar85) said : #3

Here you are:

       description: VGA compatible controller
       product: GF114 [GeForce GTX 560]
       vendor: NVIDIA Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:16 memory:f0000000-f1ffffff memory:d0000000-d7ffffff memory:d8000000-dbffffff ioport:bc00(size=128) memory:f3d00000-f3d7ffff
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04.1 LTS
Release: 12.04
Codename: precise
Linux Matrix 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

and what is the output of:

dpkg -l | grep nvidia


and what is the output of:

dpkg -l | grep nvidia


tiar (tiar85) said : #6

Here you are:

ii nvidia-common 1: Find obsolete NVIDIA drivers
ii nvidia-current 295.40-0ubuntu1.1 NVIDIA binary Xorg driver, kernel module and VDPAU library
ii nvidia-current-updates 304.43-0ubuntu0.1 NVIDIA binary Xorg driver, kernel module and VDPAU library
ii nvidia-settings 295.33-0ubuntu1 Tool of configuring the NVIDIA graphics driver
ii nvidia-settings-updates 304.43-0ubuntu0.2 Tool of configuring the NVIDIA graphics driver


sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get upgrade

Reboot to test

tiar (tiar85) said : #8

Now it's done. First and second boot went fine. Hang occured again at third boot.

Can you help with this problem?

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