[Bug 27314] displayport link training fails on certain panels (channel equalization fails)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27314

Rafael Ávila de Espíndola <rafael.espindola at gmail.com> changed:

           What    |Removed                     |Added
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  Attachment #55359|0                           |1
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--- Comment #66 from Rafael Ávila de Espíndola <rafael.espindola at gmail.com> 2012-01-19 20:53:01 UTC ---
Created attachment 55818
  --> https://bugs.freedesktop.org/attachment.cgi?id=55818
dmesg trying kms after efi booting

EFI booting doesn't look very different from a bios boot.

There is initially a fb thanks to efifb, but the screen goes black just after

[    4.071160] fb: conflicting fb hw usage radeondrmfb vs EFI VGA - removing
generic driver

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