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as already pointed out at

Frequent freezes

, I am experiencing systematic freezes since my kernel was automatically upgraded to 3.19.0-29. Same problem happens if I use kernel 3.19.0-30. If I use kernel 3.19.0-28 it does not freeze any more.

Could anyone help me on troubleshooting it please?

Thank you, Andrea

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Angus73
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    these issues are classed as bugs. Please file a bug on launchpad otherwise the developers will not be aware of the issues and thus if released, others will similarly will be affected. – fossfreedom Sep 28 '15 at 08:19
  • Thank you. I filed a bug at bugs.launchpad.net/ubuntu/+source/linux/+bug/1501281 – Angus73 Sep 30 '15 at 11:06

1 Answers1

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Kernel 3.19.0-30 is not a supported kernel for Ubuntu 15.04.

The current kernel in stable repository is 3.19.0-28.

You got 3.19.0-30 installed because you had enabled proposed repository in System Settings -> Software & Updates. It is a testing kernel.

Remove testing kernels using Synaptic and disable proposed.

But before you remove it I suggest reporting the bug to launchpad. You can do it by running

ubuntu-bug linux

in terminal.

UPDATE: Now kernel 3.19.0-30 is in stable repositories. If it still has issues, report a bug.

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