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[Vv <663480@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Binary package hint: fglrx

I ran into this bug when using gnome-color-manager (2.32.0-0, in Pascal
de Brujin's PPA).

GCM could not correctly detect my screen and gave me an error output
when trying to dump EDID data: "failed to parse edid".

The screen's EDID is correct since get-edid/parse-edid is not affected
by this problem and gives correct results.

According to GCM's author Richard Hughes :

"GCM, like the display capplet just reads the X output property "EDID"
(and EDID_DATA for some broken drivers) which is supposed to be a cached
copy (by the display driver) to avoid hitting the hardware every time,
which is very slow.

It's likely the fglrx are not doing the EDID block copy correctly, given
that there is only the first 128 byte block present [in the GCM EDID
dump]."

Using the free driver solves the problem.

I'm using Ubuntu 10.10.
fglrx version is 2:8.780-ubuntu2.

Please tell me if you need additional information.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: xorg 1:7.5+6ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-22.34-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic x86_64
Architecture: amd64
DRM.card0.DisplayPort.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
DRM.card0.HDMI_Type_A.1:
 status: disconnected
 enabled: disabled
 dpms: On
 modes: 
 edid-base64:
Date: Tue Oct 19 21:31:23 2010
DkmsStatus:
 
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
Lsusb:
 Bus 002 Device 003: ID 045e:0040 Microsoft Corp. Wheel Mouse Optical
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=dac2e5c0-a5c9-472d-bf96-76e8b5df91f7 ro quiet splash
ProcEnviron:
 LANG=fr_FR.utf8
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 09/17/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P1.70
dmi.board.name: P55 Pro
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.70:bd09/17/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnP55Pro:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
system:
 distro:             Ubuntu
 codename:           maverick
 architecture:       x86_64
 kernel:             2.6.35-22-generic

** Affects: fglrx-installer (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug maverick

-- 
ATI proprietary driver (fglrx) does not provide correct EDID data
https://bugs.launchpad.net/bugs/663480
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