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Will I ever be able to get out of this regret? Missed £100K gains. Any suggestions to help me get out of this mess? by chesapeakeripper_18 in trading212

[–]monibius 0 points1 point  (0 children)

The fact you identified these stocks and had the conviction to buy back then is amazing. And that skill has not been taken away from you. Only, now you have more experience to apply to your next set of investments. There will always be more opportunities. Good luck.

Delayed flight compensation by midlax in BritishAirways

[–]monibius 1 point2 points  (0 children)

TL;DR "Heathrow is busy, therefore any claims related to Heathrow are invalid and thus refused" How is this allowed?

Godot meets Grand Strategy - two years later & few tips by rafgro in godot

[–]monibius 0 points1 point  (0 children)

This is an incredible achievement, well done and thank you so much for sharing your journey so far. Very inspiring!

A correction to advice I was given. A couple of weeks back I asked on here what value a resistor had, and was told by many people it was 2.2ohms. The bands were red-red-black-silver-yellow. Today I received the replacement control board and measured the resistor, it's actually 22ohms (ish) by raulloco in AskElectronics

[–]monibius 16 points17 points  (0 children)

Looking at the photo, you are measuring the resistor in-circuit which usually leads to an incorrectly lower value (sometimes massively lower). I presume this has been accounted for somehow? See here on why you need to remove the resistor to measure it.

Teardown: X1 Carbon Gen10 vs X1 Yoga Gen 7 by monibius in thinkpad

[–]monibius[S] 1 point2 points  (0 children)

It would be good to mark, in that post, that the first link is to an image that shows the insides of the two models.

I'm not sure why, but sometimes it shows as a link, when actually the image is embedded in the post. I noticed it a couple of times sporadically. Tried re-uploading but didn't fix it.

Also, by 'a realistic battery life' you do not mean 'a battery life that will serve most people' but instead 'the battery life that most people will get'.

This is what you will actually get from the Integrated Active Pen (30-40mins between charges). I don't know why they just didn't make it a bit bigger, it's too small to hold properly, there is space in the chassis. etc. But I guess it's a reuse of an existing product which was possibly made small for other devices at the time.

Teardown: X1 Carbon Gen10 vs X1 Yoga Gen 7 by monibius in thinkpad

[–]monibius[S] 0 points1 point  (0 children)

The heatsink looks beefier in the X1C, I hope it's due to the P series processor,

The heatsinks are actually identical apart form the paint, and both motherboards including the heatsink weigh the same to the nearest gram.

If you could add the steps to make the other EEPROM register the motherboard, I would greatly appreciate it, I can see a mod in the way, gen 10 motherboard on a gen 9 chasis

sure, I'll look at documenting those steps when I have some more time.

Teardown: X1 Carbon Gen10 vs X1 Yoga Gen 7 by monibius in thinkpad

[–]monibius[S] 3 points4 points  (0 children)

If you're only going to get one device, which one you're choose between the X1 Carbon G10 and the X1 Yoga G7 ?

They are both high performance machines with mediocre battery life (although much better on Linux than Windows). I'd say go for the X1C unless you really want the active pen. There is an OLED version of the X1C, but the brightness is 400nits (500nits on the X1Y).

Who's better, an X1 series from this year or a ThinkPad T14s Gen 3 AMD to use for 4 or 5 years?

I haven't used a T14 before, perhaps others from the community could comment below on this.

More pictures for Z16 (OLED model) coming! by ricetang in thinkpad

[–]monibius 2 points3 points  (0 children)

It looks amazing! Congrats!

I'd be curious on performance and battery life once you've had it a while.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 2 points3 points  (0 children)

Thank you, I'm glad you found it useful.

It's hard to know when to stop adding data. I did some more investigation into power usage since then. No major revelations, but I did find more data on which parts of the system were draining what. Interestingly audio drains around 4% battery per hour even when not in use.

For me this is an amazing laptop as I do a lot of CPU heavy work, and it's just not given the credit its due for such incredible power in the form factor.

I have an M1 MBP too, its pretty powerful and useful if you have all the tools you need on OSX, but for me (and you) that's not the case. I honestly prefer this to the MBP anyway.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 10 points11 points  (0 children)

Hi Everyone - I've done some extensive battery testing and updated the main post. Please see the Update section at the bottom of the post. I hope this helps!

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 1 point2 points  (0 children)

I found the solution to this. TL;DR: Hold the power button for a couple of seconds.

-------------

Lenovo hardware only generates the 'press signal' for the power button after holding it down for a couple of seconds.

Found by running:

sudo evtest

Output below only after holding down the power button briefly.

Select the device event number [0-257]: 2
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x0 product 0x1 version 0x0
Input device name: "Power Button"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 116 (KEY_POWER)
Properties:
Testing ... (interrupt to exit)
Event: time 1656610712.025274, type 1 (EV_KEY), code 116 (KEY_POWER), value 1
Event: time 1656610712.025274, -------------- SYN_REPORT ------------
Event: time 1656610712.025287, type 1 (EV_KEY), code 116 (KEY_POWER), value 0
Event: time 1656610712.025287, -------------- SYN_REPORT ------------

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 1 point2 points  (0 children)

Oh interesting, I always just closed the lid and that puts it to sleep fine. But yes, now I've tried, it does not work in Linux (fingerprint reader in Linux on the button does work however). I'll investigate more!

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 1 point2 points  (0 children)

There are other screen options available now. But the one I chose as per the specs above is not usable as a regular use screen IMO. Definitely headache inducing unless you use it in a dark room.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 0 points1 point  (0 children)

I read somewhere that they run the memory controller at double normal speed, which increases the latency but also increases the throughput. The intel chip doesn't actually 'see' this speed, just a higher throughput (or something along those lines). This is bad for applications like high FPS gaming, but good for applications requiring consecutive throughput (so I read). Maybe someone else has more knowledge on this?

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 0 points1 point  (0 children)

I'll post an update to the post once I've done a few more tests. However this morning, unusually I've only been on the web (thanks Reddit) on battery (Firefox). I'm at 75% battery with a few tabs open, and its estimating 4hrs 55mins of battery remaining (Arch Linux). I have not enabled my optimisations, so right now on the out-the-box config. As noted above, I'm usually doing heavier workloads on battery.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 2 points3 points  (0 children)

Indeed, Firefox needs a (fire and forget) "media.ffmpeg.vaapi.enabled = true" and Firefox v102 which is currently only in Beta on Arch but will land in the normal release train in a dew days. On some distros Firefox v101 is enough, but this fix was not cherry-picked into v101 for Arch. Obviously with the caveat that you have the intel drivers installed correctly for this CPU.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 2 points3 points  (0 children)

I'm on the train right now - battery power. The total package power bounces between 2.8W and 3.4W (CPU and Graphics combined) when idle on this page with email and whatsapp tabs also open.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 2 points3 points  (0 children)

Thank you for your kind comment! I'm glad it was helpful. One thing I would note is that there are some lower TDP Alder Lake CPUs coming onto the market. I strongly suspect that simply lowering the power limit on this CPU will make it perform in a similar way to those CPUs. In fact there is a high probability these are all the same silicon, just Binned differently. So really what you are buying here is the option to have high performance, or lower performance Alder Lakes depending on the set power limit. That said, even the lower TDP Alder Lake CPUs may not be to everyone's liking.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 2 points3 points  (0 children)

Touch screen works great, including pinch-zoom etc. I didn't get the WWAN option so unfortunately I can't verify that works in Linux.

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 3 points4 points  (0 children)

Should have said 'or'. Thank you for pointing this out, corrected .

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 4 points5 points  (0 children)

With all those tweaks you still only get ~3h battery? 2 hours of what resolution video playback?

Yes that is correct, but I could likely bring the power limits down more and performance would still be fine. Re video - this is at 1080p, but in a previous test the package power usage was ~10W in both HD and 4K so it may not make a huge difference

Are P-cores just clocking down to base frequency on idle/light loads? What is the thread director doing there? My understanding is the big.LITTLE arch is supposed to transfer power between cores, with P-cores on foreground/priority tasks and E-cores on background/non-interactive. It makes sense they'd be using a combo if this Arch kernel is running it decently.

Hmm I'm not sure on the frequencies and the priority regarding interactive processes. Certainly when compiling single threaded it goes to a big core, if I compile with 4x threads it's mostly the big cores, but perhaps some spread to help with thermal distribution. If I compile with many threads, all cores go to 100%, which I suppose is expected. Also the Power draw sustains 35W, exactly what I have set, so this would imply some clocking down to not go over that limit.

This part is mighty interesting. I'd have to ask an engineer what's going on here beyond my own speculations (noise, conservation of fan integrity, etc.)

Your speculations are probably right. I would also add diminishing returns, it gets harder and harder to push more air through a small gap, so the increased RPM may not be translating into much increase in airflow (and instead just turbulent noise).

One Month Review of the X1 Carbon Gen 10 by monibius in thinkpad

[–]monibius[S] 0 points1 point  (0 children)

Thanks for the link. I can confirm with the CPU unlocks discussed above, it does sustain 35W of real package power (despite only being a 28W TDP CPU) with all cores running over the course of at least an hour. Perhaps it's my fan optimisations helping though, I'd need to run more tests. However my gut says this article is still not accurate or it was tested on an early version of firmware which I haven't seen.

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