Document Audience:INTERNAL
Document ID:I0618-1
Title:A screen resolution of 1024x768x75 for Creator (FFB) and Elite (AFB) Frame Buffers with any monitors is set incorrectly by the Open Boot PROM.
Copyright Notice:Copyright © 2005 Sun Microsystems, Inc. All Rights Reserved
Update Date:2000-10-20

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                            FIELD INFORMATION NOTICE
                  (For Authorized Distribution by SunService)
FIN #: I0618-1
Synopsis: A screen resolution of 1024x768x75 for Creator (FFB) and Elite (AFB) Frame Buffers with any monitors is set incorrectly by the Open Boot PROM.
Create Date: Oct/20/00
Keywords: 

A screen resolution of 1024x768x75 for Creator (FFB) and Elite (AFB) Frame Buffers with any monitors is set incorrectly by the Open Boot PROM.

Top FIN/FCO Report: No
Products Reference: Creator (FFB) and Elite (AFB) Frame Buffer
Product Category: Display / Frame Buffer
Product Affected: 
Mkt_ID   Platform   Model   Description   Serial Number
------   --------   -----   -----------   -------------
Systems Affected
----------------
  -        A22       ALL     Ultra 10           -
  -        A16       ALL     Ultra 30           -
  -        A23       ALL     Ultra 60           -
  -        A27       ALL     Ultra 80           -

X-Options Affected
------------------
  -          -        -          -              -
Parts Affected: 
Part Number   	Description   			Model
-----------   	-----------   			-----
501-4174	Creator series 2		FFB2/SB
501-4172	Creator3D series 2		FFB2/DB
501-4789	Creator series 3		FFB2+/SB
501-4788	Creator3D series 3		FFB2+/DB
501-5690	Creator3D series 3              FFB2+/DB
501-5484	Elite3D m3			AFB
540-3623	Elite3D m6			AFB
501-4860	Elite3D m3 FRU                  AFB                  
501-5268	Elite3D m3 FRU                  AFB
501-5574	Elite3D m3 FRU                  AFB
540-3902	Elite3D m6 FRU                  AFB
540-4313	Elite3D m6 FRU                  AFB
501-5201	Elite3D m3 (not a FRU)          AFB
501-5575	Elite3D m3 (not a FRU)          AFB
References: 
BugId:  4347705
Issue Description: 
A screen resolution of 1024x768x75 cannot be correctly set by the Open
Boot PROM for Creator and Elite Frame Buffers used with Any monitors.
The problem can be seen when either AFB or FFB frame buffers are
installed in one of the following systems:

	. Ultra 10
	. Ultra 30
	. Ultra 60
	. Ultra 80

If you use the following OBP command,

        ok setenv output-device screen:r1024x768x75

the frame buffer outputs the 1024x768x80 resolution.  This incorrect
resolution can be seen either in the boot messages or on the control
panel of some monitors.

The cause of this video resolution problem is an incorrect entry in the
OBP timing generation table.  Note that the problem is not reproducible
with an FFB2+ frame buffer and a version 2.9 OBP.

A workaround is available.  See the Corrective Action section below.
Implementation: 
---
        |   |   MANDATORY (Fully Pro-Active)
         ---    
         
  
         ---
        |   |   CONTROLLED PRO-ACTIVE (per Sun Geo Plan) 
         --- 
         
                                
         ---
        | X |   REACTIVE (As Required)
         ---
Corrective Action: 
There is an NVRAM workaround to patch the offending timing value for
Creator and Elite series frame buffers used with Any monitors.  If a
resolution of 1024x768x75 is desired, perform one of the following two
procedures:

1) 

   ok setenv fcode-debug? true
   ok show-displays
     a) /SUNW,ffb@1e,0
     b) /pci@1f,4000/SUNW,m64B@2
     q) NO SELECTION 
     Enter Selection, q to quit: a
     /SUNW,ffb@1e,0 has been selected.
     Type ^Y ( Control-Y ) to insert it in the command line

   < select the AFB or FFB and make note of string for use in NVRAM script >

  ok nvedit
     0: probe-all
     1: dev < path_to_FFB >       <=== example 1: dev /SUNW,ffb@1e,0
     2: base @ hex
     3: patch 46 4b pclk78
     4: base !
     5: device-end
     6: install-console banner
     < CTRL-C >
  ok nvstore
  ok setenv use-nvramrc? true
  ok reset-all

 
The system will now boot with 1024x768x75 resolution and the monitor 
will display with the 75Hz refresh rate.


			--- OR ---

2) An equivalent OS script can also be run to update the OBP:

 ---------------- Cut Here ----------------------------------
                                                            
   #!/bin/sh                                                  
                                                             
   eeprom fcode-debug?=true                                  
   eeprom nvramrc="probe-all                                 
   dev /SUNW,ffb@1e,0                                        
   # Note: Use correct path to frame buffer in previous line 
   base @ hex                                                
   patch 46 4b pclk78                                        
   base !                                                    
   device-end                                                
   install-console banner"                                   
   eeprom use-nvramrc?=true                                   
                                                             
 ---------------- Cut Here ----------------------------------
Comments: 
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Implementation Footnote: 
i)   In case of MANDATORY FINs, Enterprise Services will attempt to    
     contact all affected customers to recommend implementation of 
     the FIN. 
   
ii)  For CONTROLLED PROACTIVE FINs, Enterprise Services mission critical    
     support teams will recommend implementation of the FIN  (to their  
     respective accounts), at the convenience of the customer. 

iii) For REACTIVE FINs, Enterprise Services will implement the FIN as the   
     need arises.
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