I have just started having this problem after doing an apt-get
autoremove on my Ubuntu 10.10 64-bit system (Acer timelinex 3820TG with
the dual GPU switchable graphics).
Here's what my dmesg looks like:
[1.688349] sd 0:0:0:0: [sda] Attached SCSI disk
[1.799582] hub 2-1:1.0: USB hub found
I spoke to soon, with the new mouse/Unifying Receiver, it not only hangs
(sometimes?), but locks up the keyboard so that I can't press Escape and
continue booting. Put the old mouse back on.
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The mouse on this system (per comments above), a Microsoft USB Basic
Optical Mouse, was replaced with a Logitech Wireless M505 (which uses
the Logitech Unifying USB receiver) and now exhibits a new behaviour:
the system still hangs on boot-up but as soon as the mouse is moved the
system continues
This morning I booted kernel 2.6.35-25 in Maverick and pressed the
Escape key 4 times (varies, see above) to continue the boot. I waited
approximately 20 to 30 seconds after each hang before pressing Escape
again. Here is the interesting part of the dmesg for this boot attempt:
[4.342743]
This seems considerably worse on natty, while we had ~30 second pause on
Maverick on the current 2.6.37-11-generic #25-Ubuntu Natty we have about
75 seconds (and I think in this time the screen on Natty is completely
blank)
Dec 25 12:19:44 major kernel: [4.594366] sd 6:0:0:0: [sdb] Write
Hi Billstei - can you include a full dmesg from your boot, and maybe
some details of your hardware?
Dave
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[Maverick] ~30s boot pause
https://bugs.launchpad.net/bugs/625395
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I am also seeing long pauses on boot-up of Maverick (and Lucid was doing
it too, before the upgrade), and I use the escape key to continue,
however the number of times I press the escape key varies distinctly
from 1 to 6 times, so this is probably a race condition. There is
usually a dmesg entry
** Attachment added: Boot chart of the same boot
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/625395/+attachment/1523226/+files/bootchart.png
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[Maverick] ~30s boot pause
https://bugs.launchpad.net/bugs/625395
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** Attachment added: AcpiTables.txt
https://bugs.launchpad.net/bugs/625395/+attachment/1523207/+files/AcpiTables.txt
** Attachment added: AlsaDevices.txt
https://bugs.launchpad.net/bugs/625395/+attachment/1523208/+files/AlsaDevices.txt
** Attachment added: AplayDevices.txt
** Attachment added: Full dmesg
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/625395/+attachment/1523225/+files/dmesg
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[Maverick] ~30s boot pause
https://bugs.launchpad.net/bugs/625395
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