Red Hat Bugzilla – Bug 230027
High battery power consumption in suspend mode
Last modified: 2012-03-09 17:30:58 EST
Description of problem: Suspend mode does not turn off ATI Radeon 9000 video
circuitry. This is a known problem, particularly with IBM (Lenovo) Thinkpads.
Version-Release number of selected component (if applicable): N/A
How reproducible: 100% failure rate
Steps to Reproduce:
1. Press Fn-F4 (suspend key)
Actual results: System suspends. Power consumption drops to ~12w/hr
Expected results: System suspends. Power consumption drops to ~0.6w/hr
Problem resolved in FC6 by loading radeonfb module. Radeonfb also significantly
improves video performance, measured by glxgears frame rate.
1. Provide radeonfb module as supplemental module.
2. Provide kernel-devel rpm to allow users to generate proprietary (fglrx) ATI
Fixed in RHEL6, not going to be fixed in RHEL5.