MP crashes upon refresh rate changer changing refresh rates (1 Viewer)

[taalas]

MediaPortal Version: 1.1.0RC3
MediaPortal Skin: Monochrome 3.3
Windows Version: Vista SP1
CPU Type: AMD 4850e
HDD: WD Caviar Green
Memory: 2GB
Motherboard: Gigabyte
Video Card: HD5450
Video Card Driver:
Sound Card: Realtek HD Audio
Sound Card AC3:
Sound Card Driver:
1. TV Card: Technisat Cablestar HD 2
1. TV Card Type:
1. TV Card Driver:
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider:
HTPC Case: Antec Fusion v2
Cooling:
Power Supply:
Remote: Philips Prestigo
TV: Sony KDL-37V5500
TV - HTPC Connection: HDMI

Hi everyone,

I recently upgraded my MP to RC3 and in the process switched from using the integrated HD3200 to a dedicated HD5450 video card. Starting then the refresh rate switcher stopped working for me...whenever a refresh rate change is initialized MP crashes to desktop. I haven't done a lot of debugging yet, just wanted to check if anybody has had similar experiences and/or ideas what might be happening...

To give more details: the built-in HD3200 is still active (I haven't disabled it inside the BIOS yet), the cards both work well - TV is connected to the HD5450 now though. While this doesn't seem to be a problem display-wise, could the fact that 2 cards exists somehow interfere with the refresh rate switchers work? I also tried the device reset options etc...no change, crashes every time...

Many thanks

Markus

 

[taalas]

just as a follow-up:

The crashes seem to have stopped after disabling the onboard graphics chip. Possibly the Dynamic Refresh Rate Changing has problems determining which card to use?