TV resolution changes when switching sources (1 Viewer)

[Brewtal]

MediaPortal Version: 1.1.0 Final
MediaPortal Skin: StreamedMP
Windows Version: Windows 7 Home Premium
CPU Type: Athlon II x2 3.0Ghz
HDD: Seagate 250GB - single platter
Memory: 2GB Crucial DDR3
Motherboard: Biostar A785G
Video Card: Sapphire Radeon HD 5570
Video Card Driver: Catalyst 10.6
Sound Card: none - HDMI output
Sound Card AC3:
Sound Card Driver: ATI
1. TV Card: N/A
1. TV Card Type: N/A
1. TV Card Driver: N/A
2. TV Card: N/A
2. TV Card Type: N/A
2. TV Card Driver: N/A
3. TV Card: N/A
3. TV Card Type: N/A
3. TV Card Driver: N/A
4. TV Card: N/A
4. TV Card Type: N/A
4. TV Card Driver: N/A
MPEG2 Video Codec: SAF 5.0 suggested setup
MPEG2 Audio Codec: SAF 5.0 suggested setup
h.264 Video Codec: SAF 5.0 suggested setup
Satelite/CableTV Provider: none
HTPC Case: Apex
Cooling: stock
Power Supply: Apex
Remote: MCE
TV: Samsung PN50B560 - Plasma
TV - HTPC Connection: HTPC -> AVR -> TV --- HDMI connections

Howdy all,

Wondering if anyone has experience with this one.
When I switch the source from HTPC to TV and then back, my screen resolution looks like it changed while on TV source, then changed back. Often time MP will be crunched in the upper left corner of the screen and I have to restart MP to get it back to full screen.

Any ideas on how to avoid this phenomon?

Thanks,
Brewtal

 

[exception]

Hi brewtal,
i don't know why it happens but it's the same on my system.
For me it helps to press "alt+enter" for window mode and once again for fullscreen.

May be it helps you.

Regards,
exception

 

[Brewtal]

I'll definitely give it a shot, thanks.