[Bug 657509] Re: DRM: Invalid EDID Checksum - External Monitor DVI -D not recognized by Kernel / Intel Graphisc Driver

[mediterran81]

apport information

** Tags added: apport-collected

** Description changed:

  Upon boot. I get an error that prevents the kernel from recognizing the external monitor through DVI-D connection:
  DRM: Invalid EDID checksum, remainder is 130.
  
  Only VGA mode works fine.
  
  The monitor is : DELL ST2310 and it is fully recognized in Windows (Xp,
  Vista and 7)  through DVI-D, HDMI and VGA.
  
  I tested with OpenSUSE, Fedora 13, Knoppix, Mandriva. Same problem!
  Invalid EDID.
  
  I guess it is a bug in the Linux Kernel (DRM) and has something to do
  with Intel Graphics driver.
  
  I have an INTEL GMX945 Graphics integrated card with VGA and DVI-D
  ports.
  
  Using : Ubuntu 10.10.
  
  If you need me to apply several tests! Please feel free to ask!
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: evince 2.32.0-0ubuntu1
  ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
  Uname: Linux 2.6.35-22-generic i686
  Architecture: i386
  CheckboxSubmission: 6bb25ee9c1efc494493345f78f7a61ea
  CheckboxSystem: d00f84de8a555815fa1c4660280da308
  Date: Sun Oct 10 02:30:32 2010
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
  KernLog:
   
  ProcEnviron:
   LANG=en_US.utf8
   SHELL=/bin/bash
  SourcePackage: evince
+ --- 
+ AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
+ Architecture: i386
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  hanine     2342 F.... pulseaudio
+  /dev/snd/controlC1:  hanine     2342 F.... pulseaudio
+ CRDA: Error: [Errno 2] No such file or directory
+ Card0.Amixer.info:
+  Card hw:0 'Intel'/'HDA Intel at 0xefebc000 irq 44'
+    Mixer name	: 'SigmaTel STAC9200'
+    Components	: 'HDA:83847690,102801cd,00102201 HDA:14f12bfa,14f100c3,00090000'
+    Controls      : 13
+    Simple ctrls  : 7
+ Card1.Amixer.info:
+  Card hw:1 'SPS25'/'Cakewalk SPS-25 at usb-0000:00:1d.1-2, full speed'
+    Mixer name	: 'USB Mixer'
+    Components	: 'USB0582:00b5'
+    Controls      : 0
+    Simple ctrls  : 0
+ Card1.Amixer.values:
+  
+ CheckboxSubmission: 6bb25ee9c1efc494493345f78f7a61ea
+ CheckboxSystem: d00f84de8a555815fa1c4660280da308
+ DistroRelease: Ubuntu 10.10
+ HibernationDevice: RESUME=UUID=f04c66f5-f3eb-4d13-9fd9-d9e86841fb6a
+ InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
+ MachineType: Dell Inc. MP061
+ Package: linux (not installed)
+ ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=51f8326d-3299-4ab1-afb7-8799c415ad56 ro quiet splash
+ ProcEnviron:
+  PATH=(custom, no user)
+  LANG=en_US.utf8
+  SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
+ Regression: No
+ RelatedPackageVersions: linux-firmware 1.38
+ Reproducible: Yes
+ Tags: maverick kernel-graphics needs-upstream-testing
+ Uname: Linux 2.6.35-22-generic i686
+ UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare tape video
+ dmi.bios.date: 04/02/2007
+ dmi.bios.vendor: Dell Inc.
+ dmi.bios.version: A08
+ dmi.board.name: 0FF049
+ dmi.board.vendor: Dell Inc.
+ dmi.chassis.type: 8
+ dmi.chassis.vendor: Dell Inc.
+ dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/02/2007:svnDellInc.:pnMP061:pvr:rvnDellInc.:rn0FF049:rvr:cvnDellInc.:ct8:cvr:
+ dmi.product.name: MP061
+ dmi.sys.vendor: Dell Inc.

** Attachment added: "AcpiTables.txt"
   https://bugs.edge.launchpad.net/bugs/657509/+attachment/1682109/+files/AcpiTables.txt

-- 
DRM: Invalid EDID Checksum - External Monitor DVI -D not recognized by Kernel / Intel Graphisc Driver
https://bugs.launchpad.net/bugs/657509
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