Bug 1558

Summary:	[ATI/radeon] Desktop corruption when DynamicClocks enabled for Radeon graphics board
Product:	xorg	Reporter:	Sebastian Kemper <sebastian_ml>
Component:	Driver/Radeon	Assignee:	Xorg Project Team <xorg-team>
Status:	RESOLVED WORKSFORME	QA Contact:
Severity:	normal
Priority:	high	CC:	alexdeucher, dberkholz
Version:	6.8.0
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:

Description Sebastian Kemper 2004-10-07 22:52:01 UTC

Hi,

Gentoo's  Donnie Berkholz asked me to post a link here. So here it is. The whole
story can be found at 

http://bugs.gentoo.org/show_bug.cgi?id=63540

Best regards

Sebastian

Comment 1 Sebastian Kemper 2004-10-07 22:53:23 UTC

Done.

Comment 2 Sebastian Kemper 2004-10-07 22:53:56 UTC

Sorry, not done. Wrong window :)

Comment 3 Sebastian Kemper 2004-10-21 12:00:42 UTC

Hi!

I just installed kernel 2.6.9 and reenabled DynamicClocks an hour ago. No more
corruption, even after massive window opening, movie watching and gaming.

Thanks to the fellows that fixed it!

Sebastian

Comment 4 Sebastian Kemper 2004-10-22 02:44:00 UTC

Well, 

corruption is NOT away. It came back in the morning. Sorry for my wrong statement

Sebastian

Comment 5 Alex Deucher 2004-11-11 06:25:39 UTC

some radeon asic revisions have problems with DynamicClocks which is why it's
disabled by default.  The problem is we don't definitively know which revisions
are affected or what workarounds, if any, there can be.

Comment 6 Alex Deucher 2005-06-30 11:47:03 UTC

can you try again with xorg from cvs (as of June 30th).  Some of the OUTPLLs
were mis-typed as OUTREGs in the dynclocks code, perhaps that was the cause of
your problems.

Comment 7 Sebastian Kemper 2005-06-30 12:09:44 UTC

Hi!

Thanks for looking into this. I use DynamicClocks for quite some time now
without problems, though I'm not using CVS. 6.8.2 is what I have. But on the
other hand this is a desktop pc with a radeon 9250 and I no longer have access
to the laptop on which the corruption occurred. 

On the desktop the corruption doesn't happen. Maybe because Xorg doesn't apply
DynamicClocks anyway because it detects this is not a mobility Radeon? On the
other hand radeonfb works with DynamicClocks (default_dynclk=1). The card stays
cool this way.

So maybe we should just close this bug report?

Thanks

Sebastian

Comment 8 Alex Deucher 2005-06-30 14:19:33 UTC

(In reply to comment #7)
> Hi!
> 
> Thanks for looking into this. I use DynamicClocks for quite some time now
> without problems, though I'm not using CVS. 6.8.2 is what I have. But on the
> other hand this is a desktop pc with a radeon 9250 and I no longer have access
> to the laptop on which the corruption occurred. 
> 
> On the desktop the corruption doesn't happen. Maybe because Xorg doesn't apply
> DynamicClocks anyway because it detects this is not a mobility Radeon? On the
> other hand radeonfb works with DynamicClocks (default_dynclk=1). The card stays
> cool this way.

yes dynamicclocks is only applied to mobility chips in the xorg driver.

> 
> So maybe we should just close this bug report?

yes closing now.

> 
> Thanks
> 
> Sebastian

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