Experiencing the same black screen problem on resume from suspend.
Hopefully the info below helps debugging.
Computer info:
Desktop pc Acer L310 with Kubuntu 10.4 Lucid Lynx (fully patched)
Problem did not occur when using Kubuntu 9.x and 8.x
Kubuntu info:
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS"
Kernel info:
$ uname -a
Linux dbpsrv 2.6.32-24-generic #41-Ubuntu SMP Thu Aug 19 01:12:52 UTC 2010 i686
GNU/Linux
Graphics info:
$ sudo lshw -C video
*-display
description: VGA compatible controller
product: 82946GZ/GL Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: p...@0000:00:02.0
version: 02
width: 64 bits
clock: 33MHz
capabilities: msi pm bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:28 memory:fd800000-fd8fffff
memory:d0000000-dfffffff(prefetchable) ioport:ff00(size=8)
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Resume from suspend does not work
https://bugs.launchpad.net/bugs/568711
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