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<blockquote data-quote="CyberSimian" data-source="post: 1159840" data-attributes="member: 141969">I have now discovered what causes this difference in behaviour when MP's screen saver operates, so I thought that I would describe it here for anyone else who has a similar problem.The difference in behaviour is caused by the Sony&nbsp; TV's &quot;smart&quot; processing.&nbsp; The Sony has the usual settings for controlling the backlight, contrast, brightness, colour, hue, colour temperature, sharpness, noise reduction, MPEG noise reduction, dot noise reduction, reality creation, smooth gradation, motion flow, film mode, plus (of course) the additional advanced settings. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused&nbsp; &nbsp; :confused:" loading="lazy" data-shortname=":confused:" />The Sony also supports &quot;scene modes&quot;, which are pre-sets for different combinations of the above settings.&nbsp; The scene modes are: General, Cinema, Sports, Music, Animation, Photo, Game, and Graphics.&nbsp; There is also an &quot;Auto&quot; setting that causes the Sony to examine the video stream and select the scene mode that it thinks is most appropriate.&nbsp; This is the problem.&nbsp; My HTPC is set to send 1080p video to the Sony, and this is what happens:(1) When the video is HD (live TV or recorded TV), &quot;Auto&quot; causes the Sony to select the General scene mode, which results in the LEDs switching off when the MP screen saver operates. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile&nbsp; &nbsp; :)" loading="lazy" data-shortname=":)" />(2) When the video is SD upscaled by the HTPC to 1080p, &quot;Auto&quot; causes the Sony to select the Graphics scene mode, which results in the LEDs remaining powered on when the screen saver operates. <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 also happens when playing live or recorded radio, or displaying an MP panel.&nbsp; The Sony also selects Graphics scene mode when displaying the Windows desktop.So the solution is not to use the &quot;Auto&quot; scene mode; instead select a specific scene mode.&nbsp; It is easy to experiment to identify the scene modes which result in the LEDs switching off when the screen saver operates. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite24" alt="(y)" title="Thumbs Up&nbsp; &nbsp; (y)" loading="lazy" data-shortname="(y)" />-- from CyberSimian in the UK</blockquote>

[QUOTE="CyberSimian, post: 1159840, member: 141969"] I have now discovered what causes this difference in behaviour when MP's screen saver operates, so I thought that I would describe it here for anyone else who has a similar problem. The difference in behaviour is caused by the Sony TV's "smart" processing. The Sony has the usual settings for controlling the backlight, contrast, brightness, colour, hue, colour temperature, sharpness, noise reduction, MPEG noise reduction, dot noise reduction, reality creation, smooth gradation, motion flow, film mode, plus (of course) the additional advanced settings. :confused: The Sony also supports "scene modes", which are pre-sets for different combinations of the above settings. The scene modes are: General, Cinema, Sports, Music, Animation, Photo, Game, and Graphics. There is also an "Auto" setting that causes the Sony to examine the video stream and select the scene mode that it thinks is most appropriate. This is the problem. My HTPC is set to send 1080p video to the Sony, and this is what happens: (1) When the video is HD (live TV or recorded TV), "Auto" causes the Sony to select the General scene mode, which results in the LEDs switching off when the MP screen saver operates. :) (2) When the video is SD upscaled by the HTPC to 1080p, "Auto" causes the Sony to select the Graphics scene mode, which results in the LEDs [i]remaining powered on[/i] when the screen saver operates. :( This also happens when playing live or recorded radio, or displaying an MP panel. The Sony also selects Graphics scene mode when displaying the Windows desktop. So the solution is [i]not[/i] to use the "Auto" scene mode; instead select a [i]specific[/i] scene mode. It is easy to experiment to identify the scene modes which result in the LEDs switching off when the screen saver operates. (y) -- from CyberSimian in the UK [/QUOTE]

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