Undefined symbol "shadowUpdatePacked"

[Jan Beich]

Henk van Oers <henk at signature.nl> writes:

> [   707.153] (EE) Failed to load /usr/local/lib/xorg/modules/drivers/modesetting_drv.so: /usr/local/lib/xorg/modules/drivers/modesetting_drv.so: Undefined symbol "shadowUpdatePacked"

See bug 218153 for workarounds. Something in your xorg.conf(5) prevents
dependent modules from being loaded.

Either remove xorg.conf or limit it to "Device" section that specifies
the desired Driver and maybe BusID.