*** This bug is a duplicate of bug 21829 ***
https://bugs.launchpad.net/bugs/21829
It sounds like you have discovered a serious upgrade bug. Nevertheless your
problem is not related to this bug.
Please file a new bug report about this.
Some related questions:
1. Were you running a closed-source nvidia or ati driver in your previous
configuration?
2. If you were running closed source drivers, where from? From the repository
or from the ati/nvidia website?
3. Did you manually tweak your xorg.conf?
4. Does the feisty live cd boot normally when you try it?
PS 1. I'm not an ubuntu developer, I just triage some bugs here and
there.
But I have a strong feeling, from reading the forum-post you linked to, that
this is happening:
- the dist-update switched you back to opensource drivers
- the dist-update did not update your xorg.conf because it was manually
altered.
Although I do wonder why ati users (i'm assuming your an ati user) are
using anything but the opensource ati drivers: they are more stable and
it supports beryl and compiz)
On a related note: the automatic x-sever not working so fall back to
vesa driver was planned for Feisty, but delayed. Perhaps it will make it
in Gutsy Gibbon. Also, users can use the safe-boot feature on the boot
menu. (I think)
PS 2. I'm not really sure running closed-source drivers was previously
supported. It required tweaking xorg.conf by hand, which means a
'novice' user wouldn't have this problem. In Feisty, you can enable
restricted drivers graphically.
PS 3. A majority of the users actually keep their /home directory on a
separate partition and reinstall a new version instead of updating.
Perhaps this explains why updates are often problematic: there is much
less testing by the community, since they prefer fresh installs.
--
[feisty] x server wont start after upgrade
https://bugs.launchpad.net/bugs/88340
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