On 08/02/2012 11:55 AM, Mark Stodola wrote:
> On 08/02/2012 11:37 AM, Randall Devol wrote:
>> I posted this issue first to
>> http://scientificlinuxforum.org/index.php?act=ST&f=16&t=1803
>> <http://scientificlinuxforum.org/index.php?act=ST&f=16&t=1803>. On the
>> forum, tux99 suggested I report this on the devel mail list.
>>
>> After upgrading from SL 6.0 to SL 6.2, system startup appears to hang
>> when it tries to start run level 5. Parallels is still able to cleanly
>> shut down the guest OS and booting into single user works as expected.
>>
>> After booting into single users, in the /var/log/Xorg.0.log file, I see
>> that the Parallels video driver "prlvideo" cannot load because it
>> includes an undefined symbol: "miEmptyData". The Parallels mouse driver
>> cannot load because of the undefined symbol: "dixScreenOrigins".
>>
>> Then Xorg aborts because it cannot find any screens.
>>
>> CentOS release 6.3 with the same version of the kernel
>> (2.6.32-279.el6.i686 #1) and the same version of Xorg-server
>> (1.10.6.1.el6.centos) as SL 6.2 runs normally under Parallels.
>>
>> This seems like a bug in SL to me.
>>
>> -=O=- Randy Devol
>> [log in to unmask] <mailto:[log in to unmask]>
>> Cell: 408-483-3627
>> Fax: 650-390-0818
>>
>>
>
> There seems to be a lot of comparison between SL 6.2 and CentOS 6.3 
> flying around today.  Not very apples to apples so to speak.  I'm also 
> guessing that your SL 6.0 to 6.2 was updated via yum and not a fresh 
> installation and that the CentOS was.  A week or so ago, there were 
> numerous packages for the X drivers that were pushed out to 
> accommodate a change in the Xorg API between minor revisions by TUV.  
> This sounds an awful lot like the cause of your trouble.  Was the 
> 'prlvideo' driver package updated when you went to 6.2?  You might 
> want to jump back a bit in the mailing list archives to find the 
> proper way to make sure yum grabs the correct packages.  You could 
> also try SL 6.3rc1 to see if the problem persists there.
>
> -Mark
>

Echoing Mark's comments.

I also have a set of questions, but I'll start with: where is prlvideo 
coming from?

-- 
Pat Riehecky
Scientific Linux Developer