[Bug 91202] Output to DVI-I (or DVI-D) is blank on Tonga (R9 285 and 380X) with multiple monitors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91202

Vedran Miletić <rivanvx at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|output to DVI-I is blank    |Output to DVI-I (or DVI-D)
                   |                            |is blank on Tonga (R9 285
                   |                            |and 380X) with multiple
                   |                            |monitors

--- Comment #8 from Vedran Miletić <rivanvx at gmail.com> ---
I am using XFX R9 380X: 01:00.0 VGA compatible controller [0300]: Advanced
Micro Devices, Inc. [AMD/ATI] Amethyst XT [Radeon R9 M295X Mac Edition / R9
380X] [1002:6938] (rev f1)

This bug affects me as well. Interesting part is this: when I plug in just
DVI-I on boot, monitor works fine, and plugging DVI-D makes the monitor
connected to DVI-D blank. However, if I change monitor setup using e.g. GNOME
Displays, the DVI-I will turn blank and DVI-D will work. Disconnecting DVI-D
afterwards does not help, DVI-I remains blank.

I have three HDMI monitors, two of them are connected via DVI->HDMI adapters,
and I can do further testing if it could be helpful.

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