Red Hat Bugzilla – Bug 203222
radeon backlight patch update
Last modified: 2015-01-04 17:28:20 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.4 (like Gecko)
Description of problem:
I have tried to add my IBM ThinkPad 2373-75G to radeon_pm_whitelist.h and the
power consumption while suspended decreased rapidly. This solution worked with
all 2.6 kernels i have tried (at least all of FC5 stable kernels)
the line, which should be added to radeon_pm_whitelist.h looks like this:
E("IBM", "237375G", "IBM ThinkPad T40", "Tomas Lastovicka
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. change of radeon_pm_whitelist.h
2. recompile kernel
3. when using radeonfb, power consumption in S3 decreases from some 4Watts to
A new kernel update has been released (Version: 2.6.18-1.2200.fc5)
based upon a new upstream kernel release.
Please retest against this new kernel, as a large number of patches
go into each upstream release, possibly including changes that
may address this problem.
This bug has been placed in NEEDINFO state.
Due to the large volume of inactive bugs in bugzilla, if this bug is
still in this state in two weeks time, it will be closed.
Should this bug still be relevant after this period, the reporter
can reopen the bug at any time. Any other users on the Cc: list
of this bug can request that the bug be reopened by adding a
comment to the bug.
In the last few updates, some users upgrading from FC4->FC5
have reported that installing a kernel update has left their
systems unbootable. If you have been affected by this problem
please check you only have one version of device-mapper & lvm2
installed. See bug 207474 for further details.
If this bug is a problem preventing you from installing the
release this version is filed against, please see bug 169613.
If this bug has been fixed, but you are now experiencing a different
problem, please file a separate bug for the new problem.
I have tested the new kernel and the problem seems to be solved. Additionaly
some graphics related problems when resuming from S3 while using radeonfb (i
had to switch to text console and back) were also solved.