[Bug 2004] New: Monitor DDC not read properly - i2c delay problem

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https://bugs.freedesktop.org/show_bug.cgi?id=2004        
   
           Summary: Monitor DDC not read properly - i2c delay problem
           Product: xorg
           Version: CVS_head
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Driver/Radeon
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: dark at mama.indstate.edu


I2CUDelay() in xc/programs/XServer/hw/xfree86/i2c/xf86i2c.c seems to exit too
soon on my machine (Athlon XP 1700+, Radeon 9200), causing the DDC read to fail.
 Symptom is 1600x1200 screen on my 1920x1200 LCD.  To fix (works for me), change
diff>0 to diff>=0 in loop exit condition.
Reported against CVS_head, but observed in 6.8.0+, albeit less frequently.        
   
   
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