I've had similar problems for a while now with a laptop with ATI Radeon Mobility 9700.
A few editions of Ubuntu ago, it worked fine. For 9.10 and 10.04, and maybe an edition or two before that, it's worked intermittently, in the following way: - After booting, it resumes correctly I guess about 20% of the time. - If the laptop resumes correctly once, it will then behave, suspending and resuming as many times as I like, until it is rebooted again. - I know it's not going to resume correctly as soon as I press the power button, because the power/sleep light, which is flashing in sleep, continues to flash for a few seconds after pressing the button (which immediately re-powers the system, starting the fan and switching on the antenna light etc). If it's going to resume correctly, the power/sleep light immediately lights steadily, rather than continuing to flash for a few seconds. For 10.10, it's never yet resumed successfully at all. That's the first edition that's displayed any message. When I get a message, it says: pm_op(): pci_pm_resume+0x0/0xa0 returns -16 PM: Device 0000:00:00.0 failed to resume async: error -16 AMIBIOS Version A1003IG7 V5.50 08/12/04 EC Version 3.3 if it's any help. -- ati radeon 9000 system hangs after resume from suspend https://bugs.launchpad.net/bugs/656807 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
