[xorg-bugzilla-noise] [Bug 1303] New: Dual head breaks on ATI M 7500 6.7.0 -> 6.7.99

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https://freedesktop.org/bugzilla/show_bug.cgi?id=1303        
   
           Summary: Dual head breaks on ATI M 7500 6.7.0 -> 6.7.99
           Product: xorg
           Version: 6.7.0
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: Driver/Radeon
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: erik+xorg at oldconomy.com


I upgraded from FC2 to FC3-test (xorg x 6.7.0 -> 6.7.99) and now dual headed
operation is broken.

If I use the config file from 6.7.0 plain, the laptop panel isn't recognised
anymore, only the externally attached lcd is recognised.

If I add this line to the config:
    Option "MonitorLayout" "LVDS,CRT"
or
    Option "MonitorLayout" "LVDS,TMDS"

the laptop's panel is recognised but the external lcd screen isn't.

So I can get both working, but not at the same time.

Whether the bug is in the MonitorLayout option or not, it's wrong anyway,
because if I specify monitors for both heads, it shouldn't try to autodetect
monitors, which it actually does and then rejects either one.

This piece of log file seems to be related, I believe it did not appear in the
6.7.0 version:

(II) RADEON(0): Primary:
 Monitor   -- LVDS
 Connector -- VGA
 DAC Type  -- Primary
 TMDS Type -- NONE
 DDC Type  -- VGA_DDC
(II) RADEON(0): Secondary:
 Monitor   -- NONE
 Connector -- None
 DAC Type  -- Unknown
 TMDS Type -- NONE
 DDC Type  -- NONE

This makes no sense at all.

Also interesting:

(II) RADEON(0): Connector1: DDCType-3, DACType-0, TMDSType--1, ConnectorType-2
(**) RADEON(0): MonitorLayout Option:
    Monitor1--Type LVDS, Monitor2--Type CRT

There is no Connector2: line.

(WW) RADEON(1): Only one monitor detected, Second screen will NOT be created        
   
   
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