[Bug 54583] [Ubuntu 12.04 LTS 32-bit] Occasional ATI Radeon 9800 Pro and Intel D815EEA2 ACPI S3 State Resume Freeze

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=54583

--- Comment #16 from mypersonalmailbox1 at mail.com ---
(In reply to comment #9)
> (In reply to comment #8)
> > Is it possible you can give me detailed instructions on how to do this?
> > I have gone to grub by pressing shift key during boot, and furthermore pressed
> > e key to edit the boot script.
> 
> That's correct.  Just append radeon.agpmode=-1 to the kernel line.
> 
> > I don't know how to make the change permanent from grub's simple editor.
> > How to I know from Ubuntu's GUI that I am running in PCI mode instead of AGP
> > mode?
> 
> To make it permanent, edit the /etc/grub2.cfg and manually make the change. 
> You can check the radeon dmesg messages to see whether the card is loaded in
> AGP or non-AGP mode.

Hi Alex,

I postponed working on this issue for a while because I was not able to figure
out how to permanently alter GRUB loader options.
I broke down, and decided to insert radeon.agpmode=-1 everytime I boot for
testing purposes.
By the way, even after adding radeon.agpmode=-1, I still see random freezes and
or instability with Radeon 9800 Pro.
Looking at the dmesg.0.txt messages, I think my Radeon 9800 Pro is still being
considered an AGP device despite adding the radeon.agpmode=-1 option in GRUB.
Anyway, I added various log files related to power management to the bug
report.
Note the time jump between Oct 13 16:38, Oct 13 16:44, and Oct 13 16:49.
I believe at one of those times, the computer froze (with a blank screen).
You can take a look at it to see what is going on.

Regards,

fpgahardwareengineer

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