Sorry for the delay...
I've an Intel graphic card
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09)
After some other investigation I will try to summarise the problem, because I've seen different behaviour with dim enabled/disabled
With dim enabled:
1)leave pc idle
2)when the monitor goes black wait a few minutes
3)move the mouse/keyboard but the screen remains black, even if you change screen brightness using the special key (Fn-F6)
With dim disabled:
1)leave pc idle
2)when the monitor goes black wait a few minutes
3)move the mouse/keyboard but the screen remains black
4)if you change increase screen brightness using the special key (Fn-F6) the back light turn on and I can use the pc
Note: if I leave the pc idle for about an hour with even with dim disabled I cannot any more restore the back light
Feel free to ask me clarification if my description is not very clear...
Sorry for the delay...
I've an Intel graphic card
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09)
After some other investigation I will try to summarise the problem, because I've seen different behaviour with dim enabled/disabled
With dim enabled:
1)leave pc idle
2)when the monitor goes black wait a few minutes
3)move the mouse/keyboard but the screen remains black, even if you change screen brightness using the special key (Fn-F6)
With dim disabled:
1)leave pc idle
2)when the monitor goes black wait a few minutes
3)move the mouse/keyboard but the screen remains black
4)if you change increase screen brightness using the special key (Fn-F6) the back light turn on and I can use the pc
Note: if I leave the pc idle for about an hour with even with dim disabled I cannot any more restore the back light
Feel free to ask me clarification if my description is not very clear...