How do I fix monitor detection in Windows 7?

How do I fix monitor detection in Windows 7?

I'm using Windows 7 + Windows Media Center for my HTPC. It works great except from one annoying issue. Whenever I turn off my TV while listening to music, the music stops for a second or while Windows 7 tries to figure out what monitor is attached. After that second it settles down on a default 800x640. While not a big deal, it is annoying as I don't want to have the TV on while playing music.

Asked by: Guest | Views: 254

Total answers/comments: 4

Comments display order:

bert [Entry]

"I have a solution but I don't know if it only works for me.

You have to setup in display/screen resolution your monitors(plasma whatever) to be generic non-pnp monitor

For example: I started Windows 7 with my monitor closed and plasma didnt get recognized

And I didn't clicked on detect, I leaved the greyed out display and just select the option:

multiple displays:extend these displays

I also did that before with my main display Sony CRT monitor.

So now I can start Windows with everything turn off and when Windows 7 loads up and i turn on my plasma and sony crt everything is in place

And doesnt get undetected.

If your generic non-pnp monitor doesnt give you resolutions you need you can create them (custom resolution) with Nvidia control panel."

bert [Entry]

"open regedit and find

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Video{XXXX...}\0000
( 'XXXX' means device number. There are several device number folder and u should find 'AdapterDesc' in 0000 folder which key value is 'amd radeon HD 7XXX Series'. )

At that '0000' folder, Change 'PP_SclkDeepSleepDisable REG_DWORD' value 0 to 1.
and reboot!

worked for me"
"open regedit and find

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Video{XXXX...}\0000
( 'XXXX' means device number. There are several device number folder and u should find 'AdapterDesc' in 0000 folder which key value is 'amd radeon HD 7XXX Series'. )

At that '0000' folder, Change 'PP_SclkDeepSleepDisable REG_DWORD' value 0 to 1.
and reboot!

worked for me"

bert [Entry]

Have a look at your services, the graphics card may have a service to detect this such as "AMD External Events Utility" or "ati hotkey poller". Disable it and see if that makes a difference.

bert [Entry]

"Here's a solution that worked for me. Windows 7, NVidia Quadro NVS 295. But that's largely irrelevant.

The important part is, these are HP monitors EliteDisplay 241i.

Go to the on screen menu > Input Control > DP Hot-Plug Detection > switch it from Low Power to Always Active.

Doing this on both monitors has resolved the problem for me.
I suspect other monitors will have similar settings."