12.04 update breaks video

[Petter Adsen]

On Mon, 4 May 2015 12:05:06 -0700
rikona <rikona at sonic.net> wrote:

> On Mon, 4 May 2015 11:21:52 +0200
> Petter Adsen <petter at synth.no> wrote:
> 
> > On Sun, 3 May 2015 10:13:19 -0700
> > rikona <rikona at sonic.net> wrote:
> > 
> > > Hello Petter,
> > > 
> > > Sunday, May 3, 2015, 12:08:15 AM, Petter wrote:
> > I would be a little careful. 
> 
> In looking around, I'd say one has to be **VERY** careful. There seems
> to be LOTS of potential problems.

Graphics drivers in Linux are, unfortunately, quite infamous.

> > That is a link to the main page for Ubuntu, so choose the link there
> > for your version (although there are _tons_ of other information at
> > that site as well). From what I remember, I think the recommended
> > procedure is to get out of X, remove and purge the fglrx driver and
> > related components, install radeon, and reboot. I *think* - it's
> > been a while since I did this.
> 
> Roughly right, but with many, many details that must be done
> absolutely correctly, and even then can seem to cause difficulties.
> This kind of fix may be a bit above my pay grade. :-))

I never had any problems doing the actual switch, but as always YMMV. :)

> The above sounds a bit much for me. Alternate thought: this happened
> from an update. Before the update everything ran fine. How can I find
> out what was updated - maybe that will give a clue? Are drivers
> normally updated? Given what is apparently necessary to update AMD
> drivers correctly, maybe a simple replacement/update did not work.

Take a look in /var/log/apt - there are the logs on everything apt has
done on your system. It might well have upgraded the fglrx driver, but
probably not to the latest version. Doing that yourself I would not
recommend, as that would almost certainly break things. That driver is
prepared for a certain version of X, and the newest driver depends on,
I think, X 1.17, which you almost certainly don't have.

You could also file a bug on this, if you could narrow down the exact
cause. Expecting a fix I'm not sure about, though.

Petter

-- 
"I'm ionized"
"Are you sure?"
"I'm positive."
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