Comment 5 for bug 1366165

Whilst attempting to debug bug #781977 $dmesg was found to contain...
"init: Failed to spawn hybrid-gfx main process: unable to execute: No such file or directory" ie bug #1366165
HP Compaq nx6325 running Ubuntu 14.04.1 LTS (trusty), Kernel is 3.13.0-44-generic
From $sudo lshw...

           *-display
                description: VGA compatible controller
                product: RS482M [Mobility Radeon Xpress 200]
                vendor: Advanced Micro Devices, Inc. [AMD/ATI]
                physical id: 5
                bus info: pci@0000:01:05.0
                version: 00
                width: 32 bits
                clock: 66MHz
                capabilities: pm vga_controller bus_master cap_list rom
                configuration: driver=radeon latency=64 mingnt=8
                resources: irq:17 memory:c0000000-c7ffffff ioport:6000(size=256) memory:d4300000-d430ffff memory:d4320000-d433ffff

from line: configuration: driver=radeon...

$ modinfo radeon (output reduced to save space)
filename: /lib/modules/3.13.0-44-generic/kernel/drivers/gpu/drm/radeon/radeon.ko
license: GPL and additional rights
description: ATI Radeon
author: Gareth Hughes, Keith Whitwell, others.
depends: drm,drm_kms_helper,ttm,i2c-algo-bit
intree: Y
vermagic: 3.13.0-44-generic SMP mod_unload modversions 686

Is it looking for a file or a directory and what is the name of the missing item? What are ramifications when not found?
Otherwise Xubuntu/Peppermint/Trusty on this laptop runs nicely apart from bug #781977 when a suspend works only once.