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by noggin
Wed Jul 17, 2019 9:28 am
Forum: Media centres
Topic: Pi4 - HDMI Audio support?
Replies: 2
Views: 403

Re: Pi4 - HDMI Audio support?

The Pi Zero->3B+ range all support 5.1 and 7.1 PCM output up to 96kHz and 4.0 PCM output up to 192kHz. Dolby True HD and DTS HD MA can be losslessly decoded to these formats (apart from 5.1 PCM 192kHz which will need to be downsampled) - effectively you decode in the Pi, rather than your AVR. This i...
by noggin
Mon Jul 15, 2019 9:38 am
Forum: General discussion
Topic: I didn't think the usb c power thing was a big deal...
Replies: 92
Views: 4107

Re: I didn't think the usb c power thing was a big deal...

...screen apparently will only do 4k@30hz through the HDMI cable... Why the hell should one want to get more than 30Hz on an LCD screen? LCDs don't flicker by design. We are here in a RasPi, not on a gaming freaks forum. Err - to watch 2160p50 and 2160p60 video ? (The Pi has been a popular video pl...
by noggin
Mon Jul 15, 2019 9:36 am
Forum: General discussion
Topic: New rpi4 issues with 4k
Replies: 12
Views: 846

Re: New rpi4 issues with 4k

Ok, I have it sorted for now, it works fine with XRDP from a windows machine, and Remote Desktop...But not sure how I can run from my Linux laptop... If it works OK with 4K on some VNC clients and not others, then it suggests that not all of your clients handle 4K? (Or do those clients work OK in 4...
by noggin
Sat Jul 13, 2019 4:55 pm
Forum: HATs and other add-ons
Topic: Pi4 - more SPI - more TV Hats?
Replies: 2
Views: 222

Re: Pi4 - more SPI - more TV Hats?

Thanks - presumably the drivers would need to be updated too and some manual configuration somehow to point to the right SPI buses in the absence of a HAT EEPROM for the 'second' TV Hat?
by noggin
Fri Jul 12, 2019 1:54 pm
Forum: HATs and other add-ons
Topic: Pi4 - more SPI - more TV Hats?
Replies: 2
Views: 222

Pi4 - more SPI - more TV Hats?

Theoretically - would it be possible to fit more than one TV Hat to a Pi 4B (as it has more SPI buses) with a suitable adaptor - to allow for dual tuner working?
by noggin
Thu Jul 11, 2019 5:11 pm
Forum: General discussion
Topic: No output from RCA video
Replies: 6
Views: 291

Re: No output from RCA video

Interesting - the Pi4B is outputting 31kHz "PAL" with burst in some situations (a totally non-existent analogue standard!) This is twice the normal line rate of 15.625kHz (as if the Pi is outputting progressive 576p50 rather than interlaced 576i25?) https://twitter.com/IsItBroke/status/1149290970913...
by noggin
Fri Jul 05, 2019 10:33 pm
Forum: General discussion
Topic: No output from RCA video
Replies: 6
Views: 291

Re: No output from RCA video

Have you tried switching back to the legacy video driver - I think you can do that in raspi-config advanced settings? Someone else may be able to advise better.

I think the Pi4B defaults to the new Open Source V3D drivers?
by noggin
Sat Jun 29, 2019 10:33 am
Forum: General discussion
Topic: (pi4) so how fast is 'entry level pc performance'
Replies: 37
Views: 2338

Re: (pi4) so how fast is 'entry level pc performance'

Hellos, I have seen a couple of people throwing around the pi4 is "entry level pc performance" personally I would say (and google said too) the current sub $100 intel i3 and ryzen 3 are 'entry level' but slower things like quad core atom cpus exist so wondering what exactly is entry level pc perfor...
by noggin
Sat Jun 29, 2019 10:27 am
Forum: General discussion
Topic: (pi4) so how fast is 'entry level pc performance'
Replies: 37
Views: 2338

Re: (pi4) so how fast is 'entry level pc performance'

don't know if Windows 32 bit is even around anymore Yes, a touch tablet with 32 bit Windows 10 ( Processor: Intel Bay Trail-T Quad Core Z3735F 1.83GHz processor. Operating System: Windows 10-1903. Memory: 1GB LPDDR3. Display: 8-inch 16:10 IPS HD (1280 x 800) with 5 point multi-touchscreen. Graphics...
by noggin
Sat Jun 29, 2019 10:13 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

Can anyone tell me if the Pi 4 supports DTS-MA & Dolby True HD? Not yet - but the issue that stopped it being possible on previous Pis has been removed. The Pi 3B+ and below all maxed out at 4.0 192kHz PCM over HDMI, with 5.1/7.1 PCM only supported at lower sampling rates. To carry DTS HD MA or Dol...
by noggin
Fri Jun 28, 2019 11:58 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

The HDMI hardware does not support YCbCr420. So for 4Kp60 deep colour YCbCr422 is the only option Just reading through all these posts earlier about HDMI and YCbCr420. Does all this mean my SDR 4K TV won't work with the Pi 4 at 4K60? This is what NVIDIA Control Panel shows for it. https://i.imgur.c...
by noggin
Fri Jun 28, 2019 11:55 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

The HDMI hardware does not support YCbCr420. So for 4Kp60 deep colour YCbCr422 is the only option Yes - so currently RGB 8-bit 2160p60 is output, but for 10-bit or higher bit depth (really required for HDR) your only option is YCbCr 4:2:2 (which is 12-bit only according to HDMI 2.0 specs - though 1...
by noggin
Fri Jun 28, 2019 11:46 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

The big question I would think with such monitors is whether the monitor supports it's full resoloution over HDMI or not. IIRC HDMI was only recently upgraded to support high-res (> 1600x1200) monitors, so older monitors may only support their full resoloution on displayport or dual-link DVI. Worry...
by noggin
Thu Jun 27, 2019 10:43 am
Forum: General discussion
Topic: Reasoning behind dual Micro HDMI, and potential future alternatives?
Replies: 76
Views: 5828

Re: Reasoning behind dual Micro HDMI, and potential future alternatives?

There's no facility in the SoC for display over USB, so that is a non-starter. With regards to dual height connectors, they would apply too much torque to the attachment point The micro-HDMI are the right size, are robust (I've been plugging in and out for months with no problems), cheap, and we no...
by noggin
Wed Jun 26, 2019 5:11 pm
Forum: General discussion
Topic: Reasoning behind dual Micro HDMI, and potential future alternatives?
Replies: 76
Views: 5828

Re: Reasoning behind dual Micro HDMI, and potential future alternatives?

I'm not getting the hate for Micro HDMI. I have 4 devices that use it : 2 x Cheap Windows Atom tablets - both have Micro HDMI for external displays. 1 x ODroid C1 which has a Micro HDMI 1 x Motorola Lapdock that uses Micro HDMI for video input (they are used with a LOT of Raspberry Pis) Converters a...
by noggin
Wed Jun 26, 2019 8:42 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

Yes, the firmware wasn't parsing the "YCbCr420_only" extended block of the EDID, so was seeing 3840x2160@60 in the detailed timings but then not filtering it out due to being YCbCr420 (which currently isn't supported). I understand - HDMI 2.0 can be a minefield... So currently what 4K60 (aka 2160p6...
by noggin
Wed Jun 26, 2019 8:26 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

Yes, the firmware wasn't parsing the "YCbCr420_only" extended block of the EDID, so was seeing 3840x2160@60 in the detailed timings but then not filtering it out due to being YCbCr420 (which currently isn't supported). I understand - HDMI 2.0 can be a minefield, particularly as 4:2:0 is only suppor...
by noggin
Tue Jun 25, 2019 11:46 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

I was using and adapter then used a cable from Sony 4K camcorder in both cases it does 4K 30 at most, I know is not the cable or the adapter, in any case I went with 1080p 60 and the experience was not good at all What kind of TV are you using? I ran into a similar issue when testing LibreELEC on m...
by noggin
Mon Jun 24, 2019 1:33 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

The H264 block is the same, so still supports MVC. I have got a little bit of plumbing left to get the relevant signalling through DRM when using that, but it shouldn't be huge. Yes, the HVS/HDMI should still support the same stereoscopic signalling. 3D support with HEVC may be slightly further dow...
by noggin
Mon Jun 24, 2019 12:30 pm
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 753
Views: 65319

Re: Raspberry Pi 4 Thread - general discussion

3D MVC? What is that? 3D MVC = 3D Multi View Coding. It's the extension to h.264 that is used in 3D Blu-rays, and which previous models of Raspberry Pis have supported decoding ofwithin Kodi. Also - allied to this - is a question as to whether the HDMI outputs still support HDMI 1080p24 Frame Packe...
by noggin
Tue Mar 05, 2019 10:47 pm
Forum: Media centres
Topic: HD TV looks terrible
Replies: 3
Views: 748

Re: HD TV looks terrible

OpenElec is ancient and hardly updated at all now. LibreElec is the way forward.
by noggin
Mon Feb 18, 2019 11:10 pm
Forum: HATs and other add-ons
Topic: Does TV HAT support BBC Red Button using MHEG-5?
Replies: 5
Views: 1168

Re: Does TV HAT support BBC Red Button using MHEG-5?

I'm not sure there is a Linux MHEG5 open source implementation. I've not seen Red Button Digital Text support on a Linux DVB open source platform, only Windows. (Windows Media Centre supported it, and there is a DVB Viewer Windows plug-in. The latter also supports the newer HbbTV stuff too) (MHEG5 i...
by noggin
Mon Feb 18, 2019 9:06 am
Forum: Graphics, sound and multimedia
Topic: SDI camera input
Replies: 3
Views: 1166

Re: SDI camera input

You essentially have two choices with HDMI/HD-SDI capture on a Pi - capture uncompressed (and the only bus fast enough for that on a Pi is the CSI I think) or compress to h.264/MPEG2 externally and connect your external compression solution via a USB 2.0 port. However Linux driver support for the la...
by noggin
Sun Feb 10, 2019 10:04 am
Forum: Media centres
Topic: RPI as home cinema receiver/amp
Replies: 2
Views: 1469

Re: RPI as home cinema receiver/amp

https://www.hifiberry.com/shop/boards/hifiberry-digi-io/ The Hifi Berry Digi I/O provides both COAX and TOSLINK SP/DIF Input and Outputs for the Raspberry Pi. However I don't know if simultaneous input and output is supported by the I2S connectivity used. If you want a DAC + AMP as well you only rea...
by noggin
Tue Jan 15, 2019 11:14 am
Forum: Media centres
Topic: Advice on using Pi as TVHeadend headless backend.
Replies: 3
Views: 1109

Re: Advice on using Pi as TVHeadend headless backend.

Hello. I have just been looking into the possibility of using the latest raspberry Pi for recording, with TVHeadend. I am curious as to how TVHeadend affects the SD card, used for the Operating System. Does TVHeadend constantly write to the card (with EPG updates, schedule updates etc.) or does it ...

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