Bug 1398

Summary: DRI resume garbles screen on Dell Latitude D600 Radeon 9000 M9
Product: xorg Reporter: Giridhar Pemmasani <pgiri>
Component: Driver/RadeonAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED DUPLICATE QA Contact:
Severity: normal    
Priority: high    
Version: 6.8.0   
Hardware: Other   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description Giridhar Pemmasani 2004-09-16 00:15:09 UTC 
I have Dell Latitude D600 laptop with Radeon R250 Lf (Radeon Mobility 9000 M9) 
rev 01 card. This card works fine with XFree86 with suspend+resume both S3 and 
S4. However, Xorg (I have tried 6.8.0 as well as a few CVS versions in the 
past couple of weeks), without DRI, it resumes fine, but of course, X is too 
slow. With DRI, right after switching to VT 7, the screen is garbled (white 
pixels whizz around and nothing that was there before suspend can be seen). 
With a bit of trail and error, found out that the following statement  
   
_ret = drmCommandNone(info->drmFD, DRM_RADEON_CP_RESUME); 
 
in DRIResume function causes this problem. If I put a return statement right 
before the above statement, screen is restored with some ghosting, although X 
hangs. 
 
I also need to use a patch to POST the card during resume, otherwise X hangs. 
There are couple of patches for this: see 
http://www.loria.fr/~thome/d600/index.php
Comment 1 Karol Kozimor 2004-09-21 00:28:27 UTC 
This is a duplicate of #1220.
Comment 2 Giridhar Pemmasani 2004-09-29 03:49:27 UTC 
This indeed is same as bug #1220. In fact, the fix there also fixes the 
problem with this setup, so please consider this bug as resolved. 

*** This bug has been marked as a duplicate of 1220 ***

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