AMD Ryzen 5000 Temperature Monitoring Support Sent In For Linux 5.12

[Guest]

Amd just posted a lot of Linux engineer jobs so hopefully this doesn't happen in the future

I was holding on to that hope for more than a decade like a foolish and naive person. Not going to do that anymore. It's going to take drastic changes at AMD for me to have any sort of faith in them.

All of the AMD fans here, enjoy drinking the koolaid.

[Guest]

I have had a temp readout from the get go.

Voltages and clocks are more what I am after for zenpower and zenmonitor.

Clock speed should already be reported....... don't tell me even THAT'S missing.

[Guest]

weird news, I have temperature reporting in my 5600X with kernel 5.10 (and I think with 5.9 as well)

Probably backported by someone. Or, some of the temperatures are read from the same MSRs.

[creative]

I am enjoying AMD right now, that does not mean I wont enjoy intel in the future. I have fond memories using my 65watt i7 7700. It's just that I was running out of threads for my use cases and my Z270 board did not support a 6 core upgrade. Plus,the fact that lots vulnerabilities were being discovered only making a sore wound worse.

In comes Zen 2, being intriguided by the positive responses by reviews of the Ryzen 3000 series, I decided to give it a go. AMD, at least in my case, has been not only for the R5 3600 and the R7 5800X—been without issue so far. In fact I would go as far to say my experience has been non bothersome in operation and been without segmentation faults.

That was not the case with my FX 8320 in the past, however, even then I will admit my own falt with that due to the VRM setup on that board not being up to snuff.

[Guest]

That is just because the news (as unfortunately often here) is very imprecise and incomplete.

k10temp right now (with kernel 5.10 and before) will give you basic temperature reporting, which is Tctl and Tdie.
For Zen 2, they've added TccdX temperatures that allow for monitoring each CCD and that's what was missing here (and is added for Zen 3 with the aforementioned patch).
In addition, k10temp also showed voltages and currents for the CPUs and that would be shown as well, but it was removed from k10temp.

So basically with the patch applied you get Tccd1 and – if applicable – Tccd2.

Yes, but following the discussion there and on the hwmon list, it seems that the values are not necessarily reliable, which is why it was removed from k10temp.
zenpower does show them, but you possibly shouldn't take them for granted.

According to the comments over there it even seems the case that some Mainboards feed wrong readouts to the CPU to achieve higher clock rates (you might remember the whole burst frequency discussion with Zen 2 …).

Bottom line is: unless AMD provides proper docs or programmers to adapt the code correctly, you can't get reliable voltage/current/power readouts for Zen CPUs.
btw, the same seems to apply to hwinfo and the like as well, but nobody seems to care there, that's the difference.

AMD is acting really weird here …

If you can't effectively see temperatures, current, voltage, power consumption, you can't find out if your CPU is defective. Are any of the cores achieving turbo? Are all of them achieving base frequency atleast? What's holding it back? Only the above stats can tell you if there's something holding back the CPU. And since you can't see them........

[kripteks]

Probably backported by someone. Or, some of the temperatures are read from the same MSRs.

I remember voltage was show with sensors with 5.10 after they removed from 5.10, i cant remember if it was on 5.10-rcX or 5.10.X versions.

[Guest]

I remember voltage was show with sensors with 5.10 after they removed from 5.10, i cant remember if it was on 5.10-rcX or 5.10.X versions.

Yeah, they removed voltage monitoring in both 5.11 and stable 5.10.x releases.

[fafreeman]

all i can say about this is that i'm glad i went with my 10850k from intel this time around. intel might of had those mitigations but at least the cpu's work and intel patched them via firmware and hardware fixes.

[creative]

all i can say about this is that i'm glad i went with my 10850k from intel this time around. intel might of had those mitigations but at least the cpu's work and intel patched them via firmware and hardware fixes.

Intel right now is a go to if you need to do a full system upgrade. An i7 10700k along with a motherboard and ram is a pretty good deal at the moment for what you pay.

A reason I went to a 5800x is cause I was already on the x570 platform, and it was the next best option to the 5900x which is outrageously out of my price range at the moment due to supply and extremely high demand.

[SilverFox]

Nuvoton sensors are better supported in general than ITE. Read the motherboard manual/spec sheet online, then check if the sensor chip used is mentioned anywhere (or ask somewhere). And then check if the kernel actually supports that particular chip.

For the latest gen motherboards, looks like NCT6797 and NCT6687 are popular. I believe both are supported by the latest stable kernel version.

Thanks for the reply, I have heard most asus x570 boards tend to be using the ITE, which according to reddit users hasn't been updated on the kernel side for yonks.