Bug 18839

Summary: X fails to find any devices when there's more than one in the system
Product: xorg Reporter: Aaron Plattner <aplattner>
Component: Server/GeneralAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED DUPLICATE QA Contact: Xorg Project Team <xorg-team>
Severity: major    
Priority: medium    
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments:
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Description Aaron Plattner 2008-12-01 16:55:57 UTC 
I set up a system with two PCI-E devices, one at PCI:1:0:0 and one (the primary) at PCI:2:0:0.  Without specifying the BusID, the X server decides that they're both primary,

  (!!) More than one possible primary device found
  (--) PCI: (0@1:0:0) unknown vendor (0x10de) unknown chipset (0x05fd) rev 161, Mem @ 0xc6000000/16777216, 0xa0000000/268435456, 0xc4000000/33554432, I/O @ 0x00003000/128
  (--) PCI: (0@2:0:0) unknown vendor (0x10de) unknown chipset (0x06ea) rev 161, Mem @ 0xc2000000/16777216, 0xb0000000/268435456, 0xc0000000/33554432, I/O @ 0x00002000/128

and then that neither are primary,

  (II) Primary Device is:
  (EE) No devices detected.

and then fails to start:

  Fatal server error:
  no screens found

This is a problem at least as far back as server-1.5-branch.  Specifying BusIDs works around the problem except that the server decides not to POST the secondary GPU.
Comment 1 Aaron Plattner 2008-12-01 16:56:24 UTC 
Created attachment 20720 [details]
config
Comment 2 Aaron Plattner 2008-12-01 16:56:40 UTC 
Created attachment 20721 [details]
log
Comment 3 Timo Aaltonen 2008-12-30 14:52:31 UTC 

*** This bug has been marked as a duplicate of bug 18321 ***

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