Tuesday, May 30, 2017

Re: Blank screen after boot with Radeon HD 5450

On Tue, May 30, 2017 at 2:55 PM, Mihai Popescu <mihscu@gmail.com> wrote:
> Did you disable the onboard card from BIOS? What options do you have for this?

In the BIOS, "Primary Graphics Adapter" is set to "PCI Express". When
switching it to "Onboard" and plugging the cable into the onboard DP,
the boot message and the BIOS setup are shown and the display
functions at 2560x1440@60Hz.

When the setting is "PCI Express" the OpenBSD boot messages are
displayed through the PCI adapter (only). A brief moment after the
"scsibus4 at softraid0: 256 targets" there is no signal anymore,
neither on the PCI adapter nor the on-board one. (This happens no
matter whether xenodm is on or off.)

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