[Bug 19370] New: Blank laptop screen if DVI display plugged in on Xorg startup after " Fix connector table mapping for lvtma/kaleidoscope/uniphy" commit (d744dc01 ...)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=19370

           Summary: Blank laptop screen if DVI display plugged in on Xorg
                    startup after "Fix connector table mapping for
                    lvtma/kaleidoscope/uniphy" commit (d744dc01...)
           Product: xorg
           Version: 7.4
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: twhitehead at gmail.com
         QAContact: xorg-team at lists.x.org


I noticed my laptop's panel goes black/blank on Xorg startup if an external DVI
display is plugged into the HDMI connect on the side of the laptop (via a HDMI
to DVI cable) during Xorg startup.  Plugging it in after startup does not cause
this problem.

Using git bisect shows the first commit this started happening at was "Fix
connector table mapping for lvtma/kaleidoscope/uniphy"
(d744dc013cf5ca3141c0fdf55e36d713fe9f53ba).  I'll attach a log file from Xorg
starting up with the with the the external DVI display plugged in for this
commit and the previous working one.  The difference between them is

tyson at whitehead2:~$ diff -u gooddvi.log baddvi.log 
--- gooddvi.log 2009-01-02 10:56:35.000000000 -0500
+++ baddvi.log  2009-01-02 10:53:02.000000000 -0500
@@ -11,7 +11,7 @@                                  
 Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,   
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
-(++) Log file: "gooddvi.log", Time: Fri Jan  2 10:56:17 2009
+(++) Log file: "baddvi.log", Time: Fri Jan  2 10:52:44 2009
 (==) Using config file: "/etc/X11/xorg.conf"
 (==) ServerLayout "Default Layout"
 (**) |-->Screen "Default Screen" (0)
@@ -424,7 +424,7 @@
  Monitor   -- AUTO
  Connector -- LVDS
  DAC Type  -- None
- TMDS Type -- LVTMA
+ TMDS Type -- None
  DDC Type  -- 0xac0
 (II) RADEON(0): Port2:
  Monitor   -- AUTO
@@ -799,6 +799,9 @@
 Output 68 disable success
 (II) RADEON(0): ParseTable said: CD_SUCCESS
 (II) RADEON(0): Call to AtomBIOS Exec succeeded
+Output 23 disable success
+(II) RADEON(0): ParseTable said: CD_SUCCESS
+(II) RADEON(0): Call to AtomBIOS Exec succeeded
 Output 66 disable success
 (II) RADEON(0): ParseTable said: CD_SUCCESS
 (II) RADEON(0): Call to AtomBIOS Exec succeeded
@@ -943,6 +946,9 @@
 (II) RADEON(0): ParseTable said: CD_SUCCESS
 (II) RADEON(0): Call to AtomBIOS Exec succeeded
 Output 68 disable success
+(II) RADEON(0): ParseTable said: CD_SUCCESS
+(II) RADEON(0): Call to AtomBIOS Exec succeeded
+Output 23 disable success
 (II) RADEON(0): RandR 1.2 enabled, ignore the following RandR disabled
message.
 (II) RADEON(0): ParseTable said: CD_SUCCESS
 (II) RADEON(0): Call to AtomBIOS Exec succeeded

I'll also attach logs for both driver versions starting up without the DVI
display plugged in.


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