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

[mediterran81]

** 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.
+ 
+ --- 
+ Architecture: i386
+ CheckboxSubmission: 6bb25ee9c1efc494493345f78f7a61ea
+ CheckboxSystem: d00f84de8a555815fa1c4660280da308
+ DistroRelease: Ubuntu 10.10
+ InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
+ Package: linux (not installed)
+ ProcEnviron:
+  PATH=(custom, no user)
+  LANG=en_US.utf8
+  SHELL=/bin/bash
+ Tags: maverick
+ Uname: Linux 2.6.36-997-generic i686
+ UnreportableReason: The running kernel is not an Ubuntu kernel
+ UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev sambashare tape video

-- 
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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