Intel G31 DVI -> HDMI Issue

[herrmannj]

Hi,

I am recently facing a problem after setting up my new htpc:

My new htpc have a board with intel 3100 Grafik (G31 chipset) and my flat tv is connected via DVI->HDMI. Everything fine so far. I managed the resultion and refresh rate (which was not easy by the way)

but:
If I switch of the TV while the pc is running, maybe recording, the grafikdriver will close the dvi port. I can hear the windows signal of hardware removed (in this case the tv). But if I switch then the tv on there are another windows ping (pnp: tv is there) but the grafikdriver will not open the dvi again and therefore I get no picture. I have to shutdown or hibernate the pc and the picture will be restored after the next start.

After reading a lot of other boards I'v learned that it is a common problem with dvi hdmi connections and ati has solved this with its latest 8.3 drivern, nvidia seems too. But Intel ? I'm using the latest Intel drivers.

Anybody out there knows any solution? Maybe some older Intel driver versions ? Or any hidden betadriver anywhere ?

Or any programming guru here wich knows how to tell the Intel driver to do a "re-initialse" ? I could catch th windows "hardware has changend" message. Maybe filtering if it was the montior (tv) that was connected and then send a "reset" to the drivers" ?

Any experience here ?

thnx
Joerg

[herrmannj]

some guy at another forum gave me the final hint, and in case of other people have the same trouble:

disable Persistence=C:\Windows\system32\igfxpers.exe from windows start with either msconfig or within startup from the registry.