+++ This bug was initially created as a clone of Bug #473195 +++ Description of problem: The resume after suspend or hibernate of a Thinkpad T60 with Radeon Mobility X1400 fails fails. The light of the display is turned on, but it remains black. In /var/log/messages I have the following lines: kernel: [drm:radeon_resume] *ERROR* kernel: [drm] Loading R500 Microcode kernel: [drm] Num pipes: 1 kernel: [drm] writeback test failed kernel: [drm:drm_ttm_bind] *ERROR* Couldn't bind backend. kernel: executing set pll kernel: executing set crtc timing kernel: [drm] LVDS-8: set mode 1400x1050 11 kernel: executing set LVDS encoder When booting with nomodeset suspend/resume works just fine, but without the nice new eye candy... The machine has been upgraded from F-9 to F-10 via a yum upgrade. Version-Release number of selected component (if applicable): kernel-2.6.27.5-117.fc10.x86_64 How reproducible: Always Steps to Reproduce: 1. Boot laptop (without nomodeset) 2. Suspend 3. Resume, see black screen Actual results: The machine cannot be used. A hard power down and power up is required. Expected results: The screensaver password prompt should appear. Additional info: The smolt profile of the machine can be found at http://www.smolts.org/client/show/pub_d3521300-de3d-40ee-be30-5c99bb593c3b --- Additional comment from