can't login through desktop GUI after upgrade from ubuntu 10.04 to 12.01 desktop

[zhang]

? 2012?10?21? 16:17, Colin Law ??:
> On 20 October 2012 23:45, Qiubo Su (David Su) <qiubosu at gmail.com> wrote:
>> Dear Sir/Madam,
>>
>> I have just upgraded ubuntu 10.04 32 bits desktop to ubuntu 12.04 32 bits
>> desktop (through login into ubuntu 10.04 desktop GUI screen, and then
>> upgrade to 12.01 through the popup "update manager" GUI screen), but got
>> can't login though GUI screen problem, i.e. when login through the GUI
>> screen with the correct password, after a few seconds, it is back to the
>> same GUI login screen again. However, it can login in through terminal.
>>
>> Have spent sometime on googling and trying to resolve the problem, but
>> unsucessful (during this period of time, run command tasksel several times
>> to install and remove some applications, and I think this may cause some
>> config data of the system and some applications removed, but I'm not quite
>> sure whether it is the case). I have previously had (when under ubuntu
>> 10.04) a lot of very important applications, data/files installed already
>> (under my own user directory, i.e. /home/qiubosu/), e.g. wine, openoffice,
>> virtualbox (and the vm OS images) etc applications. To avoid to
>> damage/destroy these applications, data/files, I think it isn't good to
>> carry on "fixing" the problem in the same approach.
> Before doing anything else back up all your important data.  If
> necessary boot off a Live CD to do this.
>
> Colin
>
try reinstall graphics driver ?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20121021/3d83533d/attachment.html>