[Bug 60011] New: Radeon HD 7690M XT black laptop screen after boot, plug+unplug external monitor workaround fix

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60011

          Priority: medium
            Bug ID: 60011
          Assignee: xorg-driver-ati at lists.x.org
           Summary: Radeon HD 7690M XT black laptop screen after boot,
                    plug+unplug external monitor workaround fix
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: benny at ammitzboell-consult.dk
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/Radeon
           Product: xorg

bla-hpenvy17 ~ # lspci -nn | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller [8086:0116] (rev 09)
01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI
Whistler XT [AMD Radeon HD 6700M Series] [1002:6740] (rev ff)

Using vgaswitcheroo to switch between intel and radeon. When radeon is selected
I get a black screen after boot (when KDE has started). Only when connecting an
external monitor the LCD display gets turned on. I can then disconnect and
connect an external monitor without any problems, but the only way to get the
LCD turned on initially is by connecting an external monitor. This workaround
is ok at home and at work, but not while travelling...

See also https://bugs.freedesktop.org/show_bug.cgi?id=58894 and 
https://bugs.freedesktop.org/show_bug.cgi?id=60009.

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