hello,

With 2.6.29-rc2 (and rc1) i cannot resume from suspend to ram (echo mem 
 > /sys/power/state). Computer correctly suspends, but never wakes up 
(screens stays black and everything is unresponsive)
                    

It has been working flawlessly in all prior kernel.
I tried a bisection and it "seems" to point to :
====================================
a9d51a5ad1154b5b20add1e8d30a5564f8aabbe9 is first bad commit
commit a9d51a5ad1154b5b20add1e8d30a5564f8aabbe9            
Author: Dave Airlie <airlied@linux.ie>                     
Date:   Sun Dec 7 12:02:21 2008 +1000                      

    drm: reorganise start and load.
                                  
    Make sure we have the primary node so the device can add maps.
                                                                 
    Signed-off-by: Dave Airlie <airlied@redhat.com>              
========================================

HOWEVER, I am not quite sure my bisect was correct; I mean, some "bad 
bisect" had a different behavior (resume produces  a garbage screen, 
computer locked)
and after bisect 57a6297e52b32ff402291a7d8fd802f83e746e52 all "bad" 
kernel wouldn't start X, init=/bin/bash booted fine but no resume

I tried  to revert but got errors
=============================
etienne@etienne-desktop:~/linux-2.6$ git revert  
a9d51a5ad1154b5b20add1e8d30a5564f8aabbe9
warning: too many files, skipping inexact rename detection
Auto-merged drivers/gpu/drm/drm_stub.c
CONFLICT (content): Merge conflict in drivers/gpu/drm/drm_stub.c
Automatic revert failed.  After resolving the conflicts,
mark the corrected paths with 'git add <paths>' or 'git rm <paths>' and 
commit the result.
=========================
Please find attached bisect log, lspci (from 2.6.28-rc8) , and .config 
(2.6.29rc2)

I have a radeon card
01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 
[Radeon X300(PCIE)]
Packages :
xserver-xorg-video-radeon            
1:6.9.0+git20081003.f9826a56-0ubuntu2.1
ii  xserver-xorg                              
1:7.4~5ubuntu3                              the X.Org X 
server                                                   
ii  xserver-xorg-core                         
2:1.5.2-2ubuntu3                            Xorg X server - core 
server                   

I'm willing to test patches and ideas of course :)

Except for this regression, everything works fine for me, I migrated to 
ext4 and it "feels" a huge win especially on "rm" and fsck :))

best regards,
Etienne