Hi,
On Mar 27, 2017, at 17:26, Chris Wilson <[email protected]> wrote:
> On Mon, Mar 27, 2017 at 04:47:44PM +0200, René Rebe wrote:
>> Hi all,
>>
>> connecting a Dell 4k MST display using the xorg intel driver on two
>> different machines (Surface Pro 3, Dell XPS 13 9360) results in one of the
>> two halts mirrored on the two MST halfs of the display. Using xrandr
>> --left-of / --right-of I could not yet find a combination that would
>> correctly show the whole screen.
>>
>> In contrast using the xorg modesetting driver on the same kernel and
>> xorg-server 4k MST works out of the box.
>>
>> Is this a know limitation or the intel xorg driver that is just considered
>> obsolete and dead or anything?
>
> It is not likely a ddx bug...
Meaning? MST works correcting when using the xorg mode setting driver, … so the
kernel side should be ok, no?
How to move forward? Is the xorg intel driver despite missing releases under
active development, or should I just use the lower performance mode setting
driver?
Interested in any debug output? The display is a Dell UltraSharp 24″ 4K UP2414Q.
René
--
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