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Bug 157737

Summary: Apple Cinema Display not recognized
Product: [Fedora] Fedora Reporter: Jurgen Kramer <gtmkramer>
Component: anacondaAssignee: Anaconda Maintenance Team <anaconda-maint-list>
Status: CLOSED NOTABUG QA Contact: Mike McLean <mikem>
Severity: medium Docs Contact:
Priority: medium    
Version: 4   
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-05-19 01:07:45 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Jurgen Kramer 2005-05-14 09:55:10 UTC
Description of problem:
Apple Cinema Display 20 inch not detected (unknown) during install

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. Install FC4t3 (tested with x86_64)
Actual results:
Display is detected as "unknown"

Expected results:
Display is detected as "Apple Cinema Display 20"

Additional info:
Related to bug 155372 (system-config-display) now partially resolved with t3.

Comment 1 Jeremy Katz 2005-05-16 20:45:25 UTC
What happens if you run 'ddcprobe' on the installed system?

Comment 2 Jurgen Kramer 2005-05-17 16:55:56 UTC
Running ddcprobe gives:

[root@paragon ~]# ddcprobe

Monitor DDC probe results
Monitor DDC Probe failed.
[root@paragon ~]#

From Xorg.0.log however:

(II) NV(0): I2C bus "DDC" initialized.
(II) NV(0): Probing for analog device on output A...
(--) NV(0):   ...can't find one
(II) NV(0): Probing for analog device on output B...
(--) NV(0):   ...found one
(II) NV(0): Probing for EDID on I2C bus A...
(II) NV(0): I2C device "DDC:ddc2" registered at address 0xA0.
(II) NV(0): I2C device "DDC:ddc2" removed.
(--) NV(0): DDC detected a DFP:
(II) NV(0): Manufacturer: APP  Model: 921d  Serial#: 5020104
(II) NV(0): Year: 2004  Week: 46
(II) NV(0): EDID Version: 1.3
(II) NV(0): Digital Display Input
(II) NV(0): Max H-Image Size [cm]: horiz.: 43  vert.: 27
(II) NV(0): Gamma: 2.20
(II) NV(0): DPMS capabilities: Off; RGB/Color Display
(II) NV(0): Default color space is primary color space
(II) NV(0): First detailed timing is preferred mode
(II) NV(0): redX: 0.640 redY: 0.340   greenX: 0.295 greenY: 0.610
(II) NV(0): blueX: 0.145 blueY: 0.070   whiteX: 0.312 whiteY: 0.329
(II) NV(0): Manufacturer's mask: 0
(II) NV(0): Supported Future Video Modes:
(II) NV(0): #0: hsize: 1680  vsize 1050  refresh: 60  vid: 179
(II) NV(0): Supported additional Video Mode:
(II) NV(0): clock: 119.0 MHz   Image Size:  433 x 270 mm
(II) NV(0): h_active: 1680  h_sync: 1728  h_sync_end 1760 h_blank_end 1840
h_border: 0
(II) NV(0): v_active: 1050  v_sync: 1053  v_sync_end 1059 v_blanking: 1080
v_border: 0
(II) NV(0): Monitor name: Cinema Displa
(II) NV(0): Monitor name: y
(II) NV(0): Number of EDID sections to follow: 1
(II) NV(0): Probing for EDID on I2C bus B...

This is with a PCI Express 6600GT

Comment 3 Jeremy Katz 2005-05-19 01:07:45 UTC
Unfortunately, this means that the monitor isn't probe-able via the generic
probing mechanisms and can only be probed via card-specific i2c routines that X
doesn't export :(