xf86-video-geode 2.11.18

Yesterday, I pushed out version 2.11.18 of the Geode X.Org driver. This is the driver used by the OLPC XO-1 and by a plethora of low-power desktops, micro notebooks and thin clients. This release mostly includes maintenance fixes of all sorts. Of noticeable interest is a fix for the long-standing issue that switching between X and a VT would result in a blank screen (this should probably be cherry-picked for distributions running earlier releases of this driver). Many thanks to Connor Behan for the fix!

Unfortunately, this driver still doesn't work with GNOME. On my testing host, launching GDM produces a blank screen. 'ps' and other tools show that GDM is running but there's no screen content; the screen remains pitch black. This issue doesn't happen with other display managers e.g. LightDM. Bug reports have been filed, additional information was provided, but the issue still hasn't been resolved.

Additionally, X server flat out crashes on Geode hosts running Linux kernels 4.2 or newer. 'xkbcomp' repeatedly fails to launch and X exits with a fatal error. Bug reports have been filed, but not reacted to. However, interestingly enough, X launches fine if my testing host is booted with earliers kernels, which might suggest what the actual cause of this particular bug might be:

Since kernel 4.2 entered Debian, the base level i386 kernel on Debian is now compiled for i686 (without PAE). Until now, the base level was i586. This essentially makes it pointless to build the Geode driver with GX2 support. It also means that older GX1 hardware won't be able to run Debian either, starting with the next stable release.

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