61–70 of 71 posts
My Macbook Air + LG Ultrafine combo works flawlessly.
A brand new Ryzen 9 system + recent model AOC monitor, on Windows, using DisplayPort, refuses to come back from sleep every single time.
These smart peripheral protocols suck balls. The VGA->DVI->HDMI chain retained the following simplicity of: 1. Send color of pixel 2. At the end of the line + blank send a pulse on HSYNC pin 3. At the end of the screen send a signal on the VSYNC pic. That's it (almost, there's EDID). If you can implement this, chances are you can display what's sent down the cable accurately. Likewise with audio, you just send a volt…
The thing is, the old protocols all have their limitations.
Analog audio - unless it's balanced - is highly vulnerable to all sorts of external interference. S/PDIF is normally two channels of PCM audio (that's decently easy), but it can carry up to 8 channels of variously compressed audio and not every sink or source supports all possible codecs (thanks to software patent licensing BS). In either case, 48 kHz sample rate and 20 bits precision are the fundamental limits.
For video... analog maps well to CRT displays but reconstructing signals from analog inputs in a TFT/LED screen is inherently a lossy process, and running anything more than 1080p is a gamble and requires good, short cables. And digital video at higher data rates becomes a nasty mess and practically devolves into RF black wizardry at the kind of stuff you can pull off with modern digital video signalling - 4K @ 240 Hz refresh rate, this is utter insanity if you just think how much data is being shovelled around.
Please take this gently, but I did not really walk away from this post having gained anything. I don't have any problems with the post in isolation but I just don't feel it really offers enough weight to be here if that makes sense. I read a few of your other posts and your writing style is direct and pleasant in a way I appreciate. Thank you for actually writing things.
The author does not call it out, but I think the point is that it's not only the dock. I've been struggling with MBP wakeup issues for a while. We have a whole zoo of various apple devices attached to a number of docks. All of the monitors are Odyssey Neo G9. TL:DR an issue with MBP port, MBP to Dock link, Dock, Dock to Monitor link, or the monitor itself could cause the unplugging dance. In addition, it takes some t…
Turns out it was that.
On a similar note, I still do not understand why I have to plug a USB Flash Drive into my Mac twice for it to mount. I take modern USB-C Flash Drive, plug it into my Mac. Nothing. Take it out, plug it in again, and it mounts just fine. Same with SD Cards. I have no idea why this is, and I'm not sure if it's always been this way, but I can't remember a time when I didn't have to do this.
I have a Dell usb C dock that I got from a company that was going to trow it away. My issue is with charging. It used to work with the Dell laptops they were using, but it has a weird behavior with my HP laptop. If I connect the laptop to the dock when the laptop is off, charging works. If I instead plug in the laptop while it's running, most of the times it doesn't start charging it. I have either to disconnect and…
Get a charger that displays the voltage & current being output on a port and you will quickly see what devices adhere to standards.
The USC-C port doesn't guarantee compatibility. Manufacturers are being evil and pushing proprietary protocols over open standards.
sudo pmset disablesleep 1
These smart peripheral protocols suck balls. The VGA->DVI->HDMI chain retained the following simplicity of: 1. Send color of pixel 2. At the end of the line + blank send a pulse on HSYNC pin 3. At the end of the screen send a signal on the VSYNC pic. That's it (almost, there's EDID). If you can implement this, chances are you can display what's sent down the cable accurately. Likewise with audio, you just send a volt…
> That's it, no handshake, no negotiation. The thing is, the old protocols all have their limitations. Analog audio - unless it's balanced - is highly vulnerable to all sorts of external interference. S/PDIF is normally two channels of PCM audio (that's decently easy), but it can carry up to 8 channels of variously compressed audio and not every sink or source supports all possible codecs (thanks to software patent l…
On a similar note, I still do not understand why I have to plug a USB Flash Drive into my Mac twice for it to mount. I take modern USB-C Flash Drive, plug it into my Mac. Nothing. Take it out, plug it in again, and it mounts just fine. Same with SD Cards. I have no idea why this is, and I'm not sure if it's always been this way, but I can't remember a time when I didn't have to do this.
Earlier quoted context omitted.
> That's it, no handshake, no negotiation. The thing is, the old protocols all have their limitations. Analog audio - unless it's balanced - is highly vulnerable to all sorts of external interference. S/PDIF is normally two channels of PCM audio (that's decently easy), but it can carry up to 8 channels of variously compressed audio and not every sink or source supports all possible codecs (thanks to software patent l…
I an not suggesting analog.. HDMI and DVI are fully digital, yet they retain the same dead simple signaling of VGA... at least for sending images, all the added features on HDMI, such as content protection and embedding other signals into the blank period are just as sucky and error prone as other digital protocols.
Not any more, that was my point. HDMI has adopted Display Stream Compression as well.