can't get vista to sleep recently

[Guest]

I have this problem not long ago.
I tried to turn off the monitor in 1 minute and sleep in 2 minutes, I tried
on 3 different power plan. Only the monitor goes black after 1 minute but my
pc still awake.
I closed all the sidebar, bit defender V10, not good.
I have a Hauppage PVR150 MCE TV Card installed.

In command prompt my windows version is 6.0.6000.
I type powercfg -a and I can see: The following sleeps are available on this
system: Standby < S3> Hibernate Hybrid Sleep
The following sleeps are not available on this system: Standby <S1> <2>
The system does not suppport this standby state.

Anyone can help?

 

[Robert Firth]

Have you installed any hardware, or updated any drivers lately? Perhaps you
could try a system restore point. Also, you might want to test your memory
to make sure it isn't the fault. Windows Vista has a memory testing program.

Try the memory diagnostics tool. Type "memory" in the start search box to
find it. It will require a restart.

Robert Firth
http://www.winvistainfo.org

 

[Guest]

Just tried memory test tools and the result was ok.
Ya I am using Hauppage PVR150 MCE TV, wireless microsoft keyboard comfort
keyboard 1.0 and wireless optical mouse 2.0 from teh beginning.
Ya I update windows regulary, no more new hardware installed recently.

 

[Joseph Gruber]

Just tried memory test tools and the result was ok.
Ya I am using Hauppage PVR150 MCE TV, wireless microsoft keyboard comfort
keyboard 1.0 and wireless optical mouse 2.0 from teh beginning.
Ya I update windows regulary, no more new hardware installed recently.

This started happening to me recently as well. No problems until the
past two weeks. It goes to sleep and then just hangs there. Nothing
on the display but the machine is still running and needs a hard
shutdown.