Comment # 21 on bug 841822 from Takashi Iwai

(In reply to Darren Freeman from comment #20)
> Old kernel version: 4.0.5-4.g56152db-desktop
> New kernel version: 4.0.5-1-desktop
> 
> Moved to Factory repo for the kernel only.
> 
> Still broken, but different.
> 
> Now, instead of seeing black, I see a flashing cursor in the top left, on a
> black background, followed by a whole bunch of garbage, much of which is
> flashing.
> 
> It looks like it's in a low-res text mode. About 28 characters tall. A whole
> bunch of similar custom characters, different colours and some of them
> flashing.
> 
> If I hit ctrl-alt-F1, I get a different screen. Still characters, only this
> time just a few green ones on black. I can then ctrl-alt-F7 back to the
> other screen. Back and forth, I can flip between the two broken screens.
> 
> So yes, there's probably a second bug here, and it's not fixed!
> 
> Also I just noticed that my laptop is a T41. It says so right under the
> screen.

Then could you rather update the information on upstream bugzilla entry so that
upstream devs can work on it?
   https://bugzilla.kernel.org/show_bug.cgi?id=65141

Or fell free to create another bug report.  Maybe bugzilla.freedesktop.org can
catch more caution.