xrandr only lists mode after a while of waiting

[Chris Wilson]

On Mon, Dec 14, 2015 at 11:58:39AM +0000, Daniel Menet wrote:
>    Thanks Chris, that gives me some sense of optimism. Still I'm running Arch
>    Linux, all up to date - and still facing the issue. Since you mentioned
>    modesettigs I assume that this was a kernel related bug (I am not really
>    into the topic, correct me if I'm all wrong).

This one is just the ddx. (Not that some people haven't stumbled into
another issue with 4.4-rc...)

> What release shipped the
>    fix? Would you mind providing a reference to a related bug report or
>    issue? I skimmed the release notes of 4.2.6 and 4.2.7 (Arch has 4.2.5) and
>    could not find a hint on a fix related to KMS.

If you add an xf86-video-intel bug on https://bugs.archlinux.org/ and
mention

commit 627ef68a8cd7a51627d5b6a98cb0a5bdb1d9b534
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sat Oct 31 09:27:35 2015 +0000

    sna: Don't extend the display mode cache for an unknown output

I am sure it will quickly get patched.  
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre