On 17 November 2014 20:06, Adam Jackson <a...@redhat.com> wrote: > Since the modular X repackaging in FC5, we have limited X server updates > such that the ABI does not change. F20 shipped with xserver 1.14.4, for > example, so we might update it to 1.14.7 but not to 1.15.0. With the > reduced driver set in F21 it's now much more reasonable to push updates > to older releases as well. > > With that in mind, I ask for feedback on how we'd actually like that to > work. The kernel rebase policy seems like a pretty reasonable model: > F21 would stay on 1.16.x until there's an upstream 1.17.1 release, and > (if F20 were to be affected by this policy) F20 would wait until 1.17.1 > had been tested in F21. > > One thing we might have to play by ear is the interaction with binary > drivers. The nvidia legacy driver, for instance, does not always have > builds available for arbitrarily new servers, which means updating the X > server might change you to an nvidia driver that no longer supports your > hardware. Depending on how severe that cutoff is, it might be cause to > pin a particular Fedora release at a given server version. I don't > think this is presently a problem, but it could be in the future. > > This would also want some coordination with the various desktop > environments; the version of KDE in F21 might have latent bugs only > exposed by switching to F22's X, for example. I have a reasonable idea > of how to test Gnome for that kind of thing, but for the others I'd need > some pointers. > > So what do we think? Good idea? Bad idea? Other things to watch for?
Looks like the policy for RHEL. Right now my RHEL 6.x systems have X 1.15 from official updates, which is even newer than the Fedora 20 X server. If it can be done for even older RHEL releases that are supposed to keep ABI stability I don't know why it could not be done for Fedora. Maybe pushing not-the-very latest X.org server in stable releases would prevent disruption with binary drivers, just like what is happening for RHEL. Just my 2c. Regards, --Simone -- You cannot discover new oceans unless you have the courage to lose sight of the shore (R. W. Emerson). http://xkcd.com/229/ http://negativo17.org/
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