Rui Matos authored Oct 27, 2015 and Alberts Muktupāvels committed Nov 29, 2015

Outputs with no crtcs shouldn't happen, but if it does we should
ignore them, instead of possibly crashing later.

https://bugzilla.gnome.org/show_bug.cgi?id=756796

Rui Matos authored Oct 27, 2015 and Alberts Muktupāvels committed Nov 29, 2015

If we can't find any valid modes for an output we need to unwind and
skip the output because trying to use a modeless output later will
crash us.

https://bugzilla.gnome.org/show_bug.cgi?id=756796

These are useful for child classes to unwind cleanly when constructing
their structures.

Based on mutter commit:
https://git.gnome.org/browse/mutter/commit/?id=bff75b64be3da88385173520c4f517693f02971c

https://bugzilla.gnome.org/show_bug.cgi?id=756796

Rui Matos authored Oct 15, 2015 and Alberts Muktupāvels committed Nov 29, 2015

We might get modes in XRROutputInfos that aren't in the
XRRScreenResources we get earlier. This always seems to be transient,
i.e. when it happens, the X server will usually send us a follow up
RRScreenChangeNotify where we then get a "stable" view of the world
again.

In any case, when these glitches happen, we end up with NULL pointers
in the MetaOutput->modes array which makes us crash later on. This
patch ensures that doesn't happen.

https://bugzilla.gnome.org/show_bug.cgi?id=756660

This reverts commit c375d0f0.

Rui Matos authored Jul 03, 2015 and Alberts Muktupāvels committed Nov 29, 2015

The max potential number of logical monitors (i.e. MetaMonitorInfos)
is the number of CRTCs, not the number of outputs.

In cases where we have more enabled CRTCs than connected outputs we
would end up appending more MetaMonitorInfos to the GArray than the
size it was initialized with which means the array would get
re-allocated rendering invalid some MetaCRTC->logical_monitor pointers
assigned previously and thus ending in crashes later on.

https://bugzilla.gnome.org/show_bug.cgi?id=751638

Rafael Fontenelle authored Oct 18, 2015 and Administrator committed Oct 18, 2015

(cherry picked from commit 3868f1e4)

Tom Tryfonidis authored Oct 18, 2015 and Administrator committed Oct 18, 2015

(cherry picked from commit 921afa8f)