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<blockquote data-quote="CyberSimian" data-source="post: 1163267" data-attributes="member: 141969"><p>When I started using WMC, I had a Toshiba LCD TV dating from 2006. I initially used the VGA connection, as my graphics adapter did not have an HDMI connection. The problem with VGA is the refresh rate -- it does 60Hz and higher, but not 50Hz. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /></p><p></p><p>The problem with 60Hz is that it gives visible artefacts with TV in the UK, especially when the camera pans horizontally. The need to generate 60 frames/sec output from a video stream that is 50 frames/sec means that the graphics adapter must show a frame twice after every 5 frames, and this leads to visible discontinuities in the picture when the image is panning horizontally (e.g. sports programmes). <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite16" alt=":cry:" title="Crying :cry:" loading="lazy" data-shortname=":cry:" /></p><p></p><p>I eventually got a graphics adapter with an HDMI connection, and used that to connect to the Toshiba, and the Toshiba then used 50Hz, which eliminated the visible artefacts. I should mention (having discussed this some years ago on the GreenButton forum), that at least one user reported using 60Hz in the UK with no visible artefacts. Maybe his TV was more advanced than mine, and was able to do some sort of clever conversion of 50Hz input to 60Hz output, or maybe he did not notice the visible artefacts. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite12" alt="o_O" title="Er... what? o_O" loading="lazy" data-shortname="o_O" /></p><p></p><p>Earlier this year I purchased a 55-inch Sony Bravia from John Lewis for £770, complete with 5-years guarantee and free Sony sound bar (which I did not want). But it is only 1080p, which is enough for me. I think that it will be <strong>decades</strong> before terrestrial free-to-air 4K broadcasting starts, and streaming from the internet does not appeal. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p><p></p><p>I would be really surprised if TVs in the UK cannot do 50Hz. Surely, more of the world uses 50Hz electric mains than uses 60Hz electric mains? <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite5" alt=":confused:" title="Confused :confused:" loading="lazy" data-shortname=":confused:" /></p><p></p><p>-- from CyberSimian in the UK</p></blockquote><p></p>
[QUOTE="CyberSimian, post: 1163267, member: 141969"] When I started using WMC, I had a Toshiba LCD TV dating from 2006. I initially used the VGA connection, as my graphics adapter did not have an HDMI connection. The problem with VGA is the refresh rate -- it does 60Hz and higher, but not 50Hz. :( The problem with 60Hz is that it gives visible artefacts with TV in the UK, especially when the camera pans horizontally. The need to generate 60 frames/sec output from a video stream that is 50 frames/sec means that the graphics adapter must show a frame twice after every 5 frames, and this leads to visible discontinuities in the picture when the image is panning horizontally (e.g. sports programmes). :cry: I eventually got a graphics adapter with an HDMI connection, and used that to connect to the Toshiba, and the Toshiba then used 50Hz, which eliminated the visible artefacts. I should mention (having discussed this some years ago on the GreenButton forum), that at least one user reported using 60Hz in the UK with no visible artefacts. Maybe his TV was more advanced than mine, and was able to do some sort of clever conversion of 50Hz input to 60Hz output, or maybe he did not notice the visible artefacts. o_O Earlier this year I purchased a 55-inch Sony Bravia from John Lewis for £770, complete with 5-years guarantee and free Sony sound bar (which I did not want). But it is only 1080p, which is enough for me. I think that it will be [b]decades[/b] before terrestrial free-to-air 4K broadcasting starts, and streaming from the internet does not appeal. :D I would be really surprised if TVs in the UK cannot do 50Hz. Surely, more of the world uses 50Hz electric mains than uses 60Hz electric mains? :confused: -- from CyberSimian in the UK [/QUOTE]
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