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<blockquote data-quote="CyberSimian" data-source="post: 1295075" data-attributes="member: 141969">Hmm. The next thing to consider would be a device on your system that does not support sleep. I think that the INF file for each device defines what low-power states that device can support. If there is a device that does not support sleep, Windows will refuse to sleep.Your case is somewhat different, in that sometimes the system does sleep, but this may be due to the device driver not responding correctly to Windows queries. I believe that you use a Pulse-8 device for CEC control? Does this plug into a USB socket on the HTPC, or does it emit IR signals to control the HTPC?If your Pulse-8 is USB connected, it may be that device that is causing the problem. So the next test would be to disconnect the Pulse-8 device and see if that makes a difference. You should also uninstall or disable the MP CEC plugin, as it may be the plugin that is causing the problem.-- from CyberSimian in the UK</blockquote>

[QUOTE="CyberSimian, post: 1295075, member: 141969"] Hmm. The next thing to consider would be a device on your system that does not support sleep. I think that the INF file for each device defines what low-power states that device can support. If there is a device that does not support sleep, Windows will refuse to sleep. Your case is somewhat different, in that sometimes the system does sleep, but this may be due to the device driver not responding correctly to Windows queries. I believe that you use a Pulse-8 device for CEC control? Does this plug into a USB socket on the HTPC, or does it emit IR signals to control the HTPC? If your Pulse-8 is USB connected, it may be that device that is causing the problem. So the next test would be to disconnect the Pulse-8 device and see if that makes a difference. You should also uninstall or disable the MP CEC plugin, as it may be the plugin that is causing the problem. -- from CyberSimian in the UK [/QUOTE]

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