[Bug 97941] [cht dsi] DRM i915 on surface 3 fail

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=97941

--- Comment #45 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to Bastien Nocera from comment #44)
> (In reply to Jani Nikula from comment #43)
> > We get the supported mode of the display from the VBT (video bios table),
> > because DSI has no auto-discovery to get that info out of the display itself.
> > 
> > Unfortunately the VBT does not seem to have information about the physical
> > dimensions.
> 
> Can we fill that in based on the DMI information, somewhere in the driver?
> The DPI should be detected as > 200 DPI, and kick GNOME into hi-dpi mode.

It would eventually become one giant monster of a DMI match table. I'd rather
not start on that path in the kernel.

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