Quoting Jani Nikula (2018-02-02 19:13:53)
> On Fri, 02 Feb 2018, dom.const...@free.fr wrote:
> > For my HTPC setup, I'm using the option "CustomEDID".
> > With this option, output attaching and destroying events leads to crashes.
> >
> > The following sequence leads to a crash:
> > - In xorg.conf: Option "CustomEDID" "HDMI2:/etc/my_edid.bin"
> I know nothing about xorg customedid stuff.
> But there's drm.edid_firmware=HDMI-2:/etc/my_edid.bin (or
> drm_kms_helper.edid_firmware on older kernels) module parameter for the
> kernel that does this transparently across the stack.

There's also the difference in that Xorg only uses the custom EDID to
conveniently load a set of modelines, but the kernel EDID override
describes the sink completely (e.g. audio modes, link protocols, pixel
formats etc).
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