Bug 20458

Summary: HD 3650: Couldn't find valid PLL dividers
Product: xorg Reporter: Tormod Volden <bugzi11.fdo.tormod>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED FIXED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium CC: stephan
Version: unspecified   
Hardware: Other   
OS: All   
URL: https://bugs.launchpad.net/bugs/336348
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Xorg.0.log none

Description Tormod Volden 2009-03-04 05:39:38 UTC 
Forwarded from Ubuntu bug https://bugs.launchpad.net/bugs/336348
Appears on 64-bit systems with Mobility Radeon HD 3650 (sony vaio fw290 and Toshiba A350).

From the Toshiba log:
Mode 1366x768 - 1474 790 0
freq: 69860000
best_freq: 4294967295
best_feedback_div: 1
best_ref_div: 1
best_post_div: 1

Fatal server error:
Couldn't find valid PLL dividers
Comment 1 Tormod Volden 2009-03-04 05:40:28 UTC 
Created attachment 23513 [details]
Xorg.0.log
Comment 2 Alex Deucher 2009-03-04 08:05:19 UTC 
should be fixed in 592bcac52f113a95923a8f1cb8427e7552d5670b
Comment 3 Stephan Bardubitzki 2009-03-04 08:28:55 UTC 
This problem is present with Ubuntu 8.10, Ubuntu 9.04 alpha 5 as well as OpenSolaris 2008.11, OpenSolaris 2009.06 Build 108 on Toshiba A350 64 bit.
Comment 4 Tormod Volden 2009-03-11 10:25:26 UTC 
The patch does not work, according to two different testers in the Ubuntu report.
Comment 5 Alex Deucher 2009-03-11 10:37:34 UTC 
(In reply to comment #4)
> The patch does not work, according to two different testers in the Ubuntu
> report.
> 

bad mode or the same error?
Comment 6 Tormod Volden 2009-03-11 10:55:21 UTC 
Sorry for not being more descriptive. Yes, it is the same error.
Comment 7 Alex Deucher 2009-03-11 11:02:12 UTC 
Are you sure the patch was applied and the packages were updated properly?  It should definitely find a set of PLL dividers.  I've tested it here and it works properly.
Comment 8 Tormod Volden 2009-03-12 03:03:52 UTC 
One tester now got the installation right, confirmed by the log, and it shows that the PLL issue is fixed.

However, now it blocks on repeated
(EE) RADEON(0): Idle timed out, resetting engine...
but he will file a new bug on that issue.
Comment 9 Tormod Volden 2009-03-15 02:59:06 UTC 
This seems to have been fixed now, but a comment in https://bugs.launchpad.net/bugs/341681 says:
"Also with 2GB of RAM the PLL rd parameter is 12, but with 4GB of RAM the PPL rd parameter is 1023. Maybe the PLL divider bug wasn't really a bug after all..."

BTW, for reference, the new "resetting engine" bug was filed as bug 20645.

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