[gentoo-user] GDM kbd/mouse lockup after emerge --update on a stable amd64 platform - need hints to cure

[G.Wolfe Woodbury]

I did:
    emerge -va --update --deep --newuse @world
on a stable gentoo amd64 (multilib) system after switching the profile
from "desktop/gnome" to "desktop" and adding
qt4 and kde flags to make.conf.  [I wan to add a few kde apps to the
mix, but not everything.]

Since then, I get a keyboard and mouse lockup when gdm starts. and can't
login graphically or switch to a text console.

I'd rather not do a complete re-install on that instance, so some clue
as to where to look for problems beyond the obvious dmesg
and boot info.

I do get a "dmeventd" failure to start, so lvm-monitoring fails to start
(even after a re-emerge of lvm2) but don't think that as anything to do
with the X lockup.  Startx from single user mode also causes a kbd/mouse
lockup.

I've verified that the kernel has the proper event configuration.
Perusing the Xorg.0.log reveals evdev failing to load:

> [   410.507] (II) LoadModule: "evdev"
> [   410.507] (II) Loading /usr/lib64/xorg/modules/input/evdev_drv.so
> [   410.513] (II) Module evdev: vendor="X.Org Foundation"
> [   410.513]    compiled for 1.10.4, module version = 2.6.0
> [   410.513]    Module class: X.Org XInput Driver
> [   410.513]    ABI class: X.Org XInput driver, version 12.2
> [   410.513] (EE) module ABI major version (12) doesn't match the
> server's version (13)
> [   410.513] (II) UnloadModule: "evdev"
> [   410.513] (II) Unloading evdev
> [   410.513] (EE) Failed to load module "evdev" (module requirement
> mismatch, 0)
> [   410.513] (EE) No input driver matching `evdev'
> [   410.513] (II) config/udev: Adding input device Power Button
> (/dev/input/event1)
> [   410.513] (**) Power Button: Applying InputClass "evdev keyboard
> catchall"
> [   410.513] (II) LoadModule: "evdev"
> [   410.513] (II) Loading /usr/lib64/xorg/modules/input/evdev_drv.so
> [   410.513] (II) Module evdev: vendor="X.Org Foundation"
> [   410.513]    compiled for 1.10.4, module version = 2.6.0
> [   410.513]    Module class: X.Org XInput Driver
> [   410.513]    ABI class: X.Org XInput driver, version 12.2
> [   410.513] (EE) module ABI major version (12) doesn't match the
> server's version (13)
> [   410.513] (II) UnloadModule: "evdev"
> [   410.513] (II) Unloading evdev
> [   410.513] (EE) Failed to load module "evdev" (module requirement
> mismatch, 0)
> [   410.513] (EE) No input driver matching `evdev'
> [   410.514] (II) config/udev: Adding input device Sleep Button
> (/dev/input/event0)
which tell me something went wrong in the re-emerge of xorg something,
but I'd like to get a clue as to just what to do to fix it.

Thanks in advance for any help.

-- 
G.Wolfe Woodbury
aka redwolfe@×××××.com