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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 16 Sep 2020
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      Dropping by briefly for an update on HDMI to USB things. First, properly fixed MS2109 audio was merged to the kernel earlier, both fixing the regression I introduced with the prior patch, and putting the channels in the right order (turns out the problem was more subtle).

      1 reply 2 retweets 39 likes
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    2. Hector Martin‏ @marcan42 16 Sep 2020
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      Also I dropped in the quirk to make audio work on the Pioneer DDJ-RB DJ controller (that story from a year ago...) while I was submitting patches to the ALSA maintainers.

      1 reply 0 retweets 9 likes
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    3. Hector Martin‏ @marcan42 16 Sep 2020
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      And now, this thing, which I bought a while ago but hadn't looked at yet: TL;DR it's crap. Fake USB3.0 (connector & cable, but not internals). MJPEG only. And it *craps out* if the frame is too complex (gives up, refuses to stream), probably fixed qp MJPEG exceeding bandwidth?pic.twitter.com/JjfJKuUykh

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    4. Hector Martin‏ @marcan42 16 Sep 2020
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      It does seem to stream 1080p unblurred unlike the MS2109, when it works (plenty of MJPEG artifacts though), but you're much better off getting a real USB3.0 unit. Internal topology is HDMI splitter -> Sil9293 -> FIC7618 (blacktopped as TC1860, but I was able to scrape it off)

      3 replies 0 retweets 17 likes
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    5. Hector Martin‏ @marcan42 16 Sep 2020
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      FWIW here is the real USB3.0 unit that I paid *less* for than the fake one:https://www.aliexpress.com/item/4001044872081.html …

      7 replies 2 retweets 28 likes
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    6. Hector Martin‏ @marcan42 16 Sep 2020
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      (As always, this is China, real things may become fake the next day, no guarantees)

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    7. DJ ( ✘╹˵˵ ◡ ˵˵╹)‏ @djwaido 16 Sep 2020
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      Replying to @marcan42

      You probably already know this but there is already a unit that looks just like it that is MS2109 based: https://aliexpress.com/item/4001172230768.html … Basically, if the price is too good to be true, it probably is

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      Hector Martin‏ @marcan42 21 Sep 2020
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      Replying to @djwaido

      That one says USB2.0 based in the description, so they aren't lying.

      6:01 AM - 21 Sep 2020
      0 replies 0 retweets 0 likes

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