Wikipedia:Reference desk/Archives/Computing/2020 July 23

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July 23

USB Quick Charge

I was looking at this product:

Is there a standard for what green and orange USB connectors stand for? Is there a webpage where the two different symbols on the green/orange connectors are explained? --Guy Macon (talk) 08:52, 23 July 2020 (UTC)

USB hardware#Colors lists common conventions and says there is no actual standard. 85.76.65.52 (talk) 11:21, 23 July 2020 (UTC)

Interesting! Did you notice that the definition for orange in the table contradicts the image right next to it? Another subtlety: Quick Charge, and VOOC use USB connectors but are not USB (power-only, no data) while USB Power Delivery is USB (data and power), but I have seen hardware that combines Quick Charge or VOOC with USB data, and I assume that you can make an AC power brick that delivers power like USB Power Delivery but has no data.

I still suspect that if I find the source of the two little lightning-bolt-in-a-rectangle logos on the product I linked to above it will lead me to a specification. Maybe from Qualcomm? See and from Belkin. --Guy Macon (talk) 12:56, 23 July 2020 (UTC)

I did notice the product you linked to had an orange port which does not really jive with "industrial hardware". A quick google for "orange USB port" suggests that maybe it is convention for an always-on charging port (powered even when the PC is off). You seem to be taking an impressively deep dive into this; please do write it up for any reliable sources! 85.76.65.52 (talk) 16:19, 23 July 2020 (UTC)

That was my plan. I am still researching this, but it looks like the color for always on (they call it "sleep and charge") is red or yellow. To confuse things even more, on some motherboards whether the USP supplies power when the unit is powered down can be turned on and off in the BIOS. More on this when I find a reliable source.

This source says that orange port "charging-capable".]

USB.ORG has some "USB Logo Usage Guidelines" at (PDF) None of them match the lighting bolt on the image I posted earlier. :( --Guy Macon (talk) 22:01, 23 July 2020 (UTC)

I ended up purchasing the product I described above. The included paperwork says:

• Green USB port with QC 3.0 fast charging 3 ... 6V-12V ... 6V-9V @ 2A, 9V-12V @ 4A

There is no mention of why there are green and orange fast charging ports(see ) or why they have different graphics under them.

The Amazon Q&A page (not even close to being a reliable source) says that the green and orange both have the same QC specs, but that the green is power-only while the orange also has USB data.

--Guy Macon (talk) 12:37, 29 July 2020 (UTC)

mediawiki source code

Could you get me the source code of mediawiki, please ?90.45.227.38 (talk) 11:22, 23 July 2020 (UTC)

See www.mediawiki.org/wiki/Download.  --Lambiam 13:22, 23 July 2020 (UTC)

In fact, I’m searching the Source code, please ? — Preceding unsigned comment added by 2A01:CB0C:38C:9F00:DC85:81B8:B8DB:E9EB (talk) 09:36, 24 July 2020 (UTC)

Follow the instructions to download it from git. That is the source code. There is no binary distribution of MediaWiki. Elizium23 (talk) 12:56, 24 July 2020 (UTC)

To clarify, MediaWiki is primarily a PHP product. The source code is a vast set of PHP scripts. It is executed using a PHP scripting engine which loads and parses the scripts on demand. 97.82.165.112 (talk) 13:38, 26 July 2020 (UTC)

Excuse me

Sometimes pictures in the pages I see with Chrome show up as blurred images that are mostly white and cyan but sometimes include green or blue. Restarting my computer is the only way I can get this fixed. Any reason this happens?? (Does Wikipedia have an article about this problem anywhere??) Georgia guy (talk) 21:39, 23 July 2020 (UTC)

Do all images look blurred? Or only certain types like .png? Ruslik_Zero 05:16, 24 July 2020 (UTC)

I don't keep track of the type; I just noticed that there were many when I made this post. Georgia guy (talk) 10:59, 24 July 2020 (UTC)

Have you tried another browser? 93.136.103.194 (talk) 16:58, 26 July 2020 (UTC)