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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Down clock USB 3.1 to 5 Gbit/s (self.linux)

submitted 11 months ago by infinitevalence to c/linux@lemmy.ml

9 comments fedilink hide all child comments

Hey there fellow neck-beards and grey-beards!

I have a motherboard with USB3.1 and I need to down clock it so its always 5 Gbit/s and never faster.

Is there any way to do this, my DuckDuckGo Fu is not finding the right combination of words.

I use Arch BTW...

Just kidding im still running Manjaro.

Thanks.

all 10 comments

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[–] pizza_the_hutt@sh.itjust.works 13 points 11 months ago (1 children)

Why?

[–] infinitevalence 10 points 10 months ago (2 children)

I have a USB extender that wont run at any other speed, but its much faster than 2.0 so I would really like to get it working consistently.

[–] possiblylinux127@lemmy.zip 6 points 10 months ago

The hub is malfunctioning then. USB devices register themselves and there capabilities on the bus.

[–] cmnybo@discuss.tchncs.de 4 points 10 months ago (1 children)

Have you tried using it with a hub that only supports 5gbps?

[–] infinitevalence 2 points 10 months ago (1 children)

Not sure what you are suggesting... The issue im trying to fix is that this extender only passes 5Gbit/s so if I plug in something that can negotiate up to 10 or lower it will try to configure the lanes that way and the extender will fail.

The only device I have managed to get working is a USB WD Elements HD. Everything else I have tried that should support 3.0 never connects.

So I wanted to test to see if I could lock the port at 5Gbit/s to eliminate auto negotiation from my trouble shooting.

[–] cmnybo@discuss.tchncs.de 8 points 10 months ago (1 children)

Connect a 5gbps USB hub to your computer. Now you have a USB port that is limited to 5gbps to connect your extender to.

[–] infinitevalence 2 points 10 months ago

ahh makes sense, I will see if I can find one!

[–] possiblylinux127@lemmy.zip 2 points 10 months ago

Sounds like chicken and the egg problem. Speeds are based on what the device supports.

[–] giacomo@lemm.ee 1 points 10 months ago

Maybe with udev rules? ATTRS{speed} maybe? Lol idk, I've never tried to downclock USB speeds.