*** This bug is a duplicate of bug 949288 ***
https://bugs.launchpad.net/bugs/949288
It is exactly the same issue. Bug 949288 requests that radeon FB be
built into the kernel.
The presence of FB_radeon will stop KMS from working (see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/59651 ) so you will
still have suspend.
Without KMS you won't have 3d hardware acceleration though (see
https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/946677 ). Some
applications also now require KMS so the option to easily enable KMS is
beneficial.
The current setup of 11.04, 11.10 and 12.04 neither benefits radeon UMS
or KMS. Bug 949288 tries to find a setup that works for UMS and KMS,
and it does. You can alter your graphics setup from the kernel command
line (yaboot prompt) unlike at present which requires altering several
files.
BTW, compiling a kernel is an extreme solution to your suspend problem.
See
https://wiki.ubuntu.com/PowerPCFAQ#Power_preferences.2BAC8-suspend.2BAC8-multimedia_keys
.
** This bug has been marked a duplicate of bug 949288
Build in ATI/radeon framebuffers on PowerPC
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https://bugs.launchpad.net/bugs/779110
Title:
suspend fails on powerpc > 2.6.38-1 in IOCTL PMU_IOC_SLEEP
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