Comment 0 for bug 194760

There seems to be a problem retrieving EDID data. (Extended display identification data)
* http://en.wikipedia.org/wiki/Extended_display_identification_data

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu hardy (development branch)"

$ uname -a
Linux ubuntu 2.6.24-8-generic #1 SMP Thu Feb 14 20:40:45 UTC 2008 i686 GNU/Linux

xorg 1:7.3+10ubuntu5
xserver-xorg 1:7.3+10ubuntu5
xserver-xorg-core 2:1.4.1~git20080131-1ubuntu4
xresprobe 0.4.24ubuntu8
nvidia-glx-new 169.09+2.6.24.9-8.25
nvidia-kernel-common 20051028+1ubuntu8

Samsung SyncMaster 900SL Plus (19", CRT)
* http://downloadcenter.samsung.com/content/UM/200301/20030125151045333_900SLPLUS_EN.pdf (manual)

Gainward GeForce 8600GT (256MB GDDR3, PCI-Express) - connected to monitor via VGA (DVI->VGA adapter).
* http://www.nvidia.com/object/geforce_8600.html
* http://www.gainward.com/product/product_detail.php?products_id=105

$ sudo xresprobe nv
id:
res:
freq:
disptype:

$ sudo xresprobe nvidia
id:
res:
freq:
disptype:

$ sudo ddcprobe
vbe: VESA 3.0 detected.
oem: NVIDIA
vendor: NVIDIA Corporation
product: GW-P/N@PM898486GTQ14P:0 GW-CLK@�
�
 �
memory: 14336kb
mode: 640x400x256
mode: 640x480x256
mode: 800x600x16
mode: 800x600x256
mode: 1024x768x16
mode: 1024x768x256
mode: 1280x1024x16
mode: 1280x1024x256
mode: 320x200x64k
mode: 320x200x16m
mode: 640x480x64k
mode: 640x480x16m
mode: 800x600x64k
mode: 800x600x16m
mode: 1024x768x64k
mode: 1024x768x16m
mode: 1280x1024x64k
mode: 1280x1024x16m
edid:
edidfail

[ 30.234827] nvidia: module license 'NVIDIA' taints kernel.
[ 30.499265] NVRM: loading NVIDIA UNIX x86 Kernel Module 169.09 Fri Jan 11 14:38:28 PST 2008

01:00.0 VGA compatible controller: nVidia Corporation GeForce 8600 GT (rev a1)

01:00.0 VGA compatible controller [0300]: nVidia Corporation GeForce 8600 GT [10de:0402] (rev a1) (prog-if 00 [VGA ontroller])
 Subsystem: CardExpert Technology Unknown device [10b0:0401]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
 Latency: 0
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
 Region 1: Memory at d0000000 (64-bit, prefetchable) [size=256M]
 Region 3: Memory at fa000000 (64-bit, non-prefetchable) [size=32M]
 Region 5: I/O ports at dc00 [size=128]
 [virtual] Expansion ROM at feae0000 [disabled] [size=128K]
 Capabilities: [60] Power Management version 2
  Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
  Status: D0 PME-Enable- DSel=0 DScale=0 PME-
 Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable-
  Address: 0000000000000000 Data: 0000
 Capabilities: [78] Express Endpoint IRQ 0
  Device: Supported: MaxPayload 128 bytes, PhantFunc 0, ExtTag+
  Device: Latency L0s <512ns, L1 <4us
  Device: AtnBtn- AtnInd- PwrInd-
  Device: Errors: Correctable- Non-Fatal- Fatal- Unsupported-
  Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
  Device: MaxPayload 128 bytes, MaxReadReq 512 bytes
  Link: Supported Speed 2.5Gb/s, Width x16, ASPM L0s L1, Port 0
  Link: Latency L0s <512ns, L1 <4us
  Link: ASPM Disabled RCB 128 bytes CommClk+ ExtSynch-
  Link: Speed 2.5Gb/s, Width x16