I'm using an HDMI switch to select among three sources, one of which is my PC. If I am viewing the internet and switch away from the PC to a different source and then switch back, I will have lost the picture. This doesn't happen when switching between media player and cable box. I have to reboot to return to the computer signal. The power options are all set to "Never".
This is troublesome because I am testing the amount of audio delay needed to synchronize with the video on the Metropolitan Opera's subscription service. The AVP's menu for this won't show up with HDMI, so I switch to component to change the setting. Thus far I haven't been able to tell of the required delay is the same for every opera in the archives, but a bit of mis-synhchronization is really distracting.