PayPal Problem - Some payments not going through (now resolved, but read if you had problems earlier) 20 May 2017Over the weekend and at the start of the week, PayPal had an issue that resulted in people being billed but the transaction showing as failed on our end. If you have signed up for a new subscription, and the transaction is showing as pending on the forum, so you haven't gained floatplane access yet, and you have waited more than 10 minutes after purchasing it in PayPal, please go to https://linustechtips.com/main/failed_transaction_fix.php and follow the instructions. If you have any issues, please send me a PM (hover over my picture or username and click "message"), including the transaction ID, and I will try and sort it out for you. If you try to subscribe again now, it should work.
The only way to increase bandwidth for the same number of pins is to increase the frequency the signal operates at. HDMI 1.0 to 1.2 operates at 165 MHz. 1.3 and 1.4 operates at 340MHz. 2.0 operates at 600MHz. Since the protocol is basically the same, all you have to do to retain backwards compatibility with an older version is downclock the signal and don't use any messages newer than that version.
However, I would imagine at some point increasing the frequency will no longer be an option. At that point I believe they'll start using the HDMI B plug (yes there is a thing), or use a more data efficient protocol.
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