Linux

10793 readers

961 users here now

A community for everything relating to the GNU/Linux operating system (except the memes!)

Also, check out:

Original icon base courtesy of lewing@isc.tamu.edu and The GIMP

founded 2 years ago

MODERATORS

Ategon@programming.dev

anzo@programming.dev

dwraf_of_ignorance@programming.dev

222

NVIDIA Drops Pascal Support On Linux, Causing Chaos On Arch Linux (hackaday.com)

submitted 15 hours ago by mesamunefire@piefed.social to c/linux@programming.dev

101 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] xthexder@l.sw0.com 2 points 8 hours ago (1 children)

A USB host providing more current than the device supports isn't an issue though. A USB device simply won't draw more than it needs. There's no danger of dumping 5A into your 20 year old mouse because it defaults to a low power 100mA device. Even if the port can supply 10A / 5V or something silly, the current is limited by the voltage and load (the mouse).

[–] balsoft@lemmy.ml 1 points 7 hours ago (1 children)

Well, the original comment was about "pushing more current through than the spec", and that's pretty much what we did...

[–] xthexder@l.sw0.com 2 points 4 hours ago

Well, regardless, the spec only cares about devices drawing more current than the host can supply, and that has always been consistent. Electricity doesn't really work in a way the host can "push" current, the only way it could do that would be with a higher voltage, which would damage anything not designed for it. But that's what the USB-PD spec is for, negotiating what voltage to supply, up to 48V now.