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[zvaral <z.varallyay@xxxxxxxxx>]

I have to withdraw my previous comment.

The truth is that I have two machines theoretically with the same
configuration (except the hard drives are different). Both are the same
acer ferrari 4005 WLMi model. In one of them the color depth degradation
still appears while the other one suffers from Bug #524860 related to
gnome-keyring but color depth changes after suspend/resume does not
appear.

I did the following experiment: I switched on both machines when booted
up I logged in, suspended and resumed. After these I coppied the file
from /var/log/Xorg.0.log to

Xorg.0.log_homepc (refers to homepc suffering from color depth changes after resume) and
Xorg.0.log_hardnut (refers to the other laptop without any issue after resume)

Please, find the difference between the two files here below. (It seems
that the two radeon x700 cards are a bit different)

zvaral@hardnut:~$ diff Xorg.0.log_homepc Xorg.0.log_hardnut 
6,9c6,9
< Current Operating System: Linux homepc 2.6.32-15-generic #22-Ubuntu SMP Tue Mar 2 02:23:29 UTC 2010 x86_64
< Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-15-generic root=UUID=ce9e0038-ae57-40d1-b512-7fb439874808 ro quiet splash
< Build Date: 02 March 2010  03:30:16PM
< xorg-server 2:1.7.5-1ubuntu2 (buildd@) 
---
> Current Operating System: Linux hardnut 2.6.32-15-generic #22-Ubuntu SMP Tue Mar 2 02:23:29 UTC 2010 x86_64
> Kernel command line: BOOT_IMAGE=/vmlinuz-2.6.32-15-generic root=UUID=4ceac70f-55c9-4a91-baae-aee960ec8114 ro quiet splash
> Build Date: 19 February 2010  11:38:32AM
> xorg-server 2:1.7.5-1ubuntu1 (buildd@) 
16,17c16,17
< (==) Log file: "/var/log/Xorg.0.log", Time: Wed Mar  3 08:05:23 2010
< (II) Loader magic: 0x7c82e0
---
> (==) Log file: "/var/log/Xorg.0.log", Time: Wed Mar  3 09:18:02 2010
> (II) Loader magic: 0x7c8300
93c93
< (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
---
> (II) Open ACPI successful (/var/run/acpid.socket)
369c369
< drmOpenDevice: open result is 8, (OK)
---
> drmOpenDevice: open result is 9, (OK)
371c371
< drmOpenDevice: open result is 8, (OK)
---
> drmOpenDevice: open result is 9, (OK)
374,375c374,375
< drmOpenDevice: open result is 8, (OK)
< drmOpenByBusid: drmOpenMinor returns 8
---
> drmOpenDevice: open result is 9, (OK)
> drmOpenByBusid: drmOpenMinor returns 9
385,386c385,386
< (II) RADEON(0): Manufacturer: SEC  Model: 3446  Serial#: 0
< (II) RADEON(0): Year: 2006  Week: 0
---
> (II) RADEON(0): Manufacturer: SEC  Model: 0  Serial#: 0
> (II) RADEON(0): Year: 2003  Week: 0
403c403
< (II) RADEON(0):  LTN154P4-L01
---
> (II) RADEON(0):  LTN154P1-L02
405,406c405,406
< (II) RADEON(0): 	00ffffffffffff004ca3463400000000
< (II) RADEON(0): 	00100103802115780a87f594574f8c27
---
> (II) RADEON(0): 	00ffffffffffff004ca3000000000000
> (II) RADEON(0): 	000d0103802115780a87f594574f8c27
410c410
< (II) RADEON(0): 	00000000003cd2026400000000fe0053
---
> (II) RADEON(0): 	00000000003cd2026401000000fe0053
412c412
< (II) RADEON(0): 	004c544e31353450342d4c30310a0080
---
> (II) RADEON(0): 	004c544e31353450312d4c30320a00fe
497a498,500
> record: RECORD extension enabled at configure time.
> record: This extension is known to be broken, disabling extension now..
> record: http://bugs.freedesktop.org/show_bug.cgi?id=20500
600c603
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
---
> (II) RADEON(0): EDID vendor "SEC", prod id 0
603c606
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
---
> (II) RADEON(0): EDID vendor "SEC", prod id 0
606c609
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
---
> (II) RADEON(0): EDID vendor "SEC", prod id 0
609c612
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
---
> (II) RADEON(0): EDID vendor "SEC", prod id 0
612c615
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
---
> (II) RADEON(0): EDID vendor "SEC", prod id 0
615,624c618
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
< (II) RADEON(0): Printing DDC gathered Modelines:
< (II) RADEON(0): Modeline "1680x1050"x0.0  121.00  1680 1704 1792 1876  1050 1051 1054 1065 -hsync -vsync (64.5 kHz)
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
< (II) RADEON(0): Printing DDC gathered Modelines:
< (II) RADEON(0): Modeline "1680x1050"x0.0  121.00  1680 1704 1792 1876  1050 1051 1054 1065 -hsync -vsync (64.5 kHz)
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
< (II) RADEON(0): Printing DDC gathered Modelines:
< (II) RADEON(0): Modeline "1680x1050"x0.0  121.00  1680 1704 1792 1876  1050 1051 1054 1065 -hsync -vsync (64.5 kHz)
< (II) RADEON(0): EDID vendor "SEC", prod id 13382
---
> (II) RADEON(0): EDID vendor "SEC", prod id 0



** Bug watch added: freedesktop.org Bugzilla #20500
   https://bugs.freedesktop.org/show_bug.cgi?id=20500

-- 
[lucid alpha-2][radeon] Color depth degradation after resume (ATI Mobility Radeon X700)
https://bugs.launchpad.net/bugs/510001
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