Here is my output, I get exactly the same behaviour. I too have nvidia hardware here, but I also get this problem on another machine with ATI hardware, but I don't currently have access to that machine.
01:00.0 VGA compatible controller: nVidia Corporation G86M [GeForce 8400M GT] (rev a1) Subsystem: Sony Corporation Device 9005 Flags: bus master, fast devsel, latency 0, IRQ 16 Memory at ce000000 (32-bit, non-prefetchable) [size=16M] Memory at d0000000 (64-bit, prefetchable) [size=256M] Memory at cc000000 (64-bit, non-prefetchable) [size=32M] I/O ports at 2000 [size=128] Capabilities: [60] Power Management version 2 Capabilities: [68] Message Signalled Interrupts: Mask- 64bit+ Queue=0/0 Enable- Capabilities: [78] Express Endpoint, MSI 00 Capabilities: [100] Virtual Channel <?> Capabilities: [128] Power Budgeting <?> Capabilities: [600] Vendor Specific Information <?> Kernel driver in use: nvidia Kernel modules: nvidiafb, nvidia Is it likely that the DPMS fixes mentioned above will make it into 9.04? -- Powerdevil is incredibly slow switching power modes https://bugs.launchpad.net/bugs/312549 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs