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<blockquote data-quote="CyberSimian" data-source="post: 1141536" data-attributes="member: 141969">I have used a variation of this method for several years now.&nbsp; But recently I purchased a new TV, and unexpectedly this method no longer works. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown&nbsp; &nbsp; :(" loading="lazy" data-shortname=":(" />&nbsp; This is the reason:(1) My normal practice is to leave the TV set to the HDMI input for the HTPC.(2) When the TV is switched on, the HTPC is off, and hence there is no signal into the HDMI input on the TV.(3) My new TV (a Sony) has some sort of advanced power management such that if it detects no signal on the current input, it switches off most of the LEDs (or something like that), so that the power consumed is not enough to trigger the master/slave mains switch.&nbsp; So the HTPC never switches on. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek!&nbsp; &nbsp; :eek:" loading="lazy" data-shortname=":eek:" />&nbsp; My master/slave mains switch has adjustable sensitivity, but even on maximum sensitivity, the power consumed by the Sony when there is no image on the screen is insufficient to trigger the master/slave switch.&nbsp; This was not a problem with my previous TV (a Toshiba).(4) Once the TV is displaying an image, the power consumed is enough to trigger the master/slave switch.I had thought that the Sony's power management meant that the master/slave solution was no longer usable, but in writing this post it has just occurred to me that the TV might support automatic input switching, whereby it switches to the most-recent input that has a signal.&nbsp; If so, the TV could be left set to the aerial input, but would automatically switch to the HTPC input when the HTPC powered up.&nbsp; (Thinks: I must check the settings on my Sony!)-- from CyberSimian in the UK</blockquote>

[QUOTE="CyberSimian, post: 1141536, member: 141969"] I have used a variation of this method for several years now. But recently I purchased a new TV, and unexpectedly this method no longer works. :( This is the reason: (1) My normal practice is to leave the TV set to the HDMI input for the HTPC. (2) When the TV is switched on, the HTPC is off, and hence there is no signal into the HDMI input on the TV. (3) My new TV (a Sony) has some sort of advanced power management such that if it detects no signal on the current input, it switches off most of the LEDs (or something like that), so that the power consumed is not enough to trigger the master/slave mains switch. So the HTPC never switches on. :eek: My master/slave mains switch has adjustable sensitivity, but even on maximum sensitivity, the power consumed by the Sony when there is no image on the screen is insufficient to trigger the master/slave switch. This was not a problem with my previous TV (a Toshiba). (4) Once the TV is displaying an image, the power consumed is enough to trigger the master/slave switch. I had thought that the Sony's power management meant that the master/slave solution was no longer usable, but in writing this post it has just occurred to me that the TV might support automatic input switching, whereby it switches to the most-recent input that has a signal. If so, the TV could be left set to the aerial input, but would automatically switch to the HTPC input when the HTPC powered up. (Thinks: I must check the settings on my Sony!) -- from CyberSimian in the UK [/QUOTE]

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