2016June2: I just installed the latest round of updates, and it seems to
have fixed the problem. At least, I've switched user several times
without a freeze.
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Public bug reported:
Ubuntu 14.04 LTS
I boot the machine, log in to user A, and start no programs. Instead, I
immediately switch user to user B. I then switch back to user A.
After entering (again) the password for user A, the system freezes.
It freezes in one of two ways: either it goes to a
Under 3.13.0-91, sudo modprobe fglrx-updates goes through without comment.
Under 3.13.0-92, sudo modprobe fglrx-updates fails with ERROR: could not insert
fglrx_updates: required key not available.
I don't know how this could be, since
3.13.0-92-generic/updates/dkms/fglrx_updates.ko is signed
I signed the fglrx driver with
sudo /usr/src/linux-headers-$(uname --kernel-release)/scripts/sign-file sha256
fglrx_private_key.priv fglrx_x509.der $(modinfo --filename fglrx-updates)
I then reinstalled 3.13.0-92 with 'sudo apt-get install
linux-signed-image-generic' as instructed.
Since this
fglrx is the driver for my monitor, so I think that would explain the
observed behavior --- if the new kernel won't load the driver, then I
get a black screen but can still get a terminal.
I don't think disabling SecureBoot is an option (it's a dual-boot
machine and I don't want to break
> The 3.13.0-92 kernel is the first one in this series which implements
> Ubuntu's updated SecureBoot policy, which requires specific action by the
> machine administrator in order to allow unsigned modules.
> You should have been prompted for this on upgrade. Do you remember seeing
> such a
> From a terminal window please run:
> apport-collect 1603655
> and then change the status of the bug to 'Confirmed'.
...okay? As I said, I apt-get removed linux-
image-3.13.0-92-generic:amd64, so the system information *now* will show
that it's not installed. The information just posted is the
apport information
** Tags added: apport-collected
** Description changed:
Last night, Ubuntu Software Updater installed a round of updates.
I shut down my computer, and when I booted this morning, the GUI failed to
load or run at all.
I switched to a terminal with Ctrl+Alt+F1, which
apport information
** Attachment added: "BootDmesg.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703115/+files/BootDmesg.txt
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apport information
** Attachment added: "UdevLog.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703127/+files/UdevLog.txt
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Title:
apport information
** Attachment added: "PulseList.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703125/+files/PulseList.txt
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apport information
** Attachment added: "WifiSyslog.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703128/+files/WifiSyslog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703119/+files/Lspci.txt
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Title:
apport information
** Attachment added: "UdevDb.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703126/+files/UdevDb.txt
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Title:
apport information
** Attachment added: "CRDA.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703116/+files/CRDA.txt
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Title:
After
apport information
** Attachment added: "ProcInterrupts.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703123/+files/ProcInterrupts.txt
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apport information
** Attachment added: "ProcEnviron.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703122/+files/ProcEnviron.txt
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apport information
** Attachment added: "ProcModules.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703124/+files/ProcModules.txt
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apport information
** Attachment added: "CurrentDmesg.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703117/+files/CurrentDmesg.txt
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apport information
** Attachment added: "Lsusb.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703120/+files/Lsusb.txt
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Title:
apport information
** Attachment added: "IwConfig.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703118/+files/IwConfig.txt
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apport information
** Attachment added: "ProcCpuinfo.txt"
https://bugs.launchpad.net/bugs/1603655/+attachment/4703121/+files/ProcCpuinfo.txt
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Public bug reported:
Last night, Ubuntu Software Updater installed a round of updates.
I shut down my computer, and when I booted this morning, the GUI failed to load
or run at all.
I switched to a terminal with Ctrl+Alt+F1, which worked fine.
I tried rebooting into 3.13.0-91 via GRUB, at which
/var/log/apt/term.log
** Attachment added: "term.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1603655/+attachment/4704824/+files/term.log
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A few hours ago I turned on my computer (it was completely shut down)
and Software Updater immediately popped up. I gave it permission to
install updates.
I edited some Google Docs in Chrome while Software Updater worked. I had
no other programs open.
At some point a window
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