ChanServ changed the topic of #aarch64-laptops to: Linux support for AArch64 Laptops (Chrome OS Trogdor Devices - Asus NovaGo TP370QL - HP Envy x2 - Lenovo Mixx 630 - Lenovo Yoga C630 - Lenovo ThinkPad X13s - and various other snapdragon laptops) - https://oftc.irclog.whitequark.org/aarch64-laptops
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<macc24>
is that speaker protection module running on arm cpu or adsp?
<macc24>
i got my slim7x back from rma and forgot about my x86 laptop so hard it died when it was suspended
<deathmist>
on X1E OmniBook it seems the battery charger driver simply doesn't do anything faster than 30 W/h no matter what. if I reproduce the all-core build workload (LLVM for example) I did natively on Linux vs WSL it's not even budging when running on windows as one would expect
<deathmist>
or maybe running the build makes it even drop below 30 W/h, haven't confirmed that either
<JensGlathe[m]>
hmm if you do an all-core build it will draw more than the 65W the PSU can provide, as we both noticed. If the thing is hot, plugging in the PSU will take a while to have it resume loading. Like some battery thermal limit perhaps
<deathmist>
but it's not a hardware limit clearly, if I reproduce the same builds under WSL on top of Windows the battery stays firmly at 100% charge
<JensGlathe[m]>
Things that make you go hmm 🤔
<konradybcio>
my sl7 seems to idle around 5 watts so far..
<konradybcio>
(screen on)
* travmurav[m]
wonders whether it's bad PM or just that fully integrated solutions don't waste as much power as he looks at his laptop idle (display on) at <2W, 2/3 of which is display
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<deathmist>
JensGlathe[m]: after further testing it seems on windows it limits the CPU clockspeed (while at 100% battery) under prolonger all-core load to generally ~2.2 GHz and that's seemingly keeping the battery from discharging.. build times are obviously also affected with it taking ~33% longer
<deathmist>
well this is dissappointing
<deathmist>
any X1E devices where this kind of behavior isn't observed while plugged in? seems this device is useless for my purposes since I mainly got it as a build machine and having to limit cpu performance this much is a no-go
<deathmist>
I just tried building qt6-qtdeclarative for example which took ~14 minutes on Linux with it using all cores along with ~10% battery all while plugged in, and on wsl in windows it took nearly 19 minutes
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<deathmist>
I did actually see the performance in reviews looked a bit strange for this device but now I know why... this device is literally designed in a defective way which either drains all your battery when you use the full performance while plugged in or you lose a third of it by limiting the clockspeed
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<JensGlathe[m]>
"Defective" is a strong word. "Interesting feature you don't want to have" is quite long, though. I'm on the fence with this.
<deathmist>
cmon, it advertises a base clock of 3.4 GHz, I expect it to stay there especially when plugged in without draining the whole battery eventually
<JensGlathe[m]>
Choice would be cool.
<JensGlathe[m]>
It does deliver performance, though
<deathmist>
not nearly as impressive when my phones are practically on par especially if I have to lose 33% just to not drain battery
<deathmist>
phones were never made to do compile tasks, this on the other hand is much more likely to be used for that
<JensGlathe[m]>
Okay within the Windows world, it doesn't drain the battery. So its behaviour you can code. In the end we're at thermal envelope / power envelope for a mobile device.
<macc24>
konradybcio: yeah they just replaced it lol
<macc24>
speaker replacement didn't work so they had to take it for a motherboard replacement
<macc24>
had to clean up the uart pads and a bunch of other stuff so they don't notice lol
<robclark>
deathmist: idk if it would help, but if you have a higher rated charger, you might try that? It's possible that HP just cheaped out on the charger?
<konradybcio>
fwiw i think i recall the sl7 charging at *at least* 45ish watts
<konradybcio>
Maybe it was more, can't tell
<deathmist>
funnily enough that's exactly how much I basically saw the battery drain be under the all-core compile workload in btop when I unplugged the carger
<deathmist>
robclark: I don't have anything USB-C over 65W
<deathmist>
either way seems I'll be returning it and maybe later getting another one which I'll confirm won't have the same problem. I don't really have a plan what to do now but AArch32 didn't really work out anyway on X1E so I can't do armv7 native compiles and when testing Tango binary translation too many things just crashed, bleh
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<JensGlathe[m]>
deathmist robclark I tried a 90W Dell charger and the Lenovo 65W one, same behaviour.
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<robclark>
hmm, ok
<kuruczgy[m]>
Can any of the X1E laptops charge faster than 65W btw? I am kinda spoiled by being able to charge my phone at 45W, compared to that 65W on a laptop feels quite slow... (Though my yoga does get quite hot while charging, so maybe this is a thermal limitation?)
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<SpieringsAE>
my asus has a 90 watt charger
<SpieringsAE>
also a pretty big battery at 70Wh
<SpieringsAE>
but yeah, its a 15.6 inch, the usb-c power circuitry near the ports does get pretty toasty while charging lol
<SpieringsAE>
huh even the lenovo thinkbook with its massive 84 Wh battery only has 65W charging
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<macc24>
my slimi7x shipped with a 65w charger, tho in linux i've seen net charge rate top out at less than 45 watts
<macc24>
the problem with more than 20v3a is that there's 1. not much chargers out there 2. requiring e-marked cables
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<HdkR>
The yoga 7x I've seen hit 80w pulling from the charger, that was some good times
<HdkR>
Only with my 100w USB-C charger of course
<HdkR>
Not sure if that was the case that it was charging the battery plus a bunch of CPU load. Hard to tell when I didn't have any battery stats in Linux yet
<macc24>
i stand corrected
<kuruczgy[m]>
In the User Guide it says that a single connector can do a maximum of 20V @ 3.25A, aka 65W
<kuruczgy[m]>
I unfortunately only have 65W chargers so I can't test if it can do more.
<kuruczgy[m]>
(Though I wonder what happens if you plug multiple chargers into the laptop :D )
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<HdkR>
Huh, interesting. So I wonder if I hit a bug in the EC then :D
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<Ruen>
The website for the Slim 7x lists PD3.1 support which I found weird because I think you only need that if you want to use USB EPR for up to 240W
<Ruen>
Also has anyone had any success with getting Fedora to install on these