[relnotes] fedora_requires_release_note granted: [Bug 458864] RANDR 1.2 drivers should allocate enough memory that resizing works sensibly

[bugzilla at redhat.com]

Product: Fedora
Version: rawhide
Component: xorg-x11-server

Adam Jackson <ajax at redhat.com> has granted  fedora_requires_release_note:
Bug 458864: RANDR 1.2 drivers should allocate enough memory that resizing works
sensibly
https://bugzilla.redhat.com/show_bug.cgi?id=458864

------- Additional Comments from Adam Jackson <ajax at redhat.com>
Right, committed for Radeon, nVidia G80, and Intel drivers.

The behaviour here is subtle and should be documented in the release notes. 
Something like the following:

---

The radeon, nv, and intel drivers will now attempt to allocate sufficient
memory to enable display hotplugging to just work in more situations.  If your
graphics card has more than 64M of video memory, the driver will preallocate
enough space for two 1920x1200 displays set side by side.  It is not possible
to do this automatically for 64M and smaller cards without impacting 3D
functionality.	Also note that this does not apply to nVidia cards older than
the GeForce 7 series due to software limitations, or to Intel chips older than
the 965 series due to hardware limitations.

---

This may still be subject to change before release, as a working memory manager
makes this moot.