#aarch64-laptops on 2025-03-16 — irc logs at oftc.irclog.whitequark.org

2024-07-16 04:52 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

00:03 <icecream95> It seems that reading it does do a SCMI call, so I guess the firmware is just pretending throttling isn't happening

00:09 <icecream95> Doing this seems to be more accurate: perf stat -e task-clock,cycles timeout 3 openssl speed md5

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00:10 <HdkR> icecream95: Pretty sure. It forces the scmi call so it should be updating unless the firmware actually is lying

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00:20 <HdkR> I don't have my X1E laptop in front of me to force it to throttle atm :P

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02:20 <icecream95> Oh that's fun, using perf I can see that cpu cores are running FASTER than what Linux thinks the frequency is!

02:21 <icecream95> Talk about broken firmware...

02:24 <icecream95> So the firmware can made core clusters go faster than the frequency set by Linux when thermal throttling! That sure makes a lot of sense.

02:31 <HdkR> :thonk:

02:31 <icecream95> My guess is that when throttling, frequency is completely firmware-managed, so it ignores anything set by the OS.

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11:03 <bryanodonoghue> kuruczgy[m] dmesg | grep ov02c

11:06 <macc24> so, does anyone have external display working on slim7x?

11:07 <JensGlathe[m]> anthony25: ^^

11:08 <kuruczgy[m]> macc24: me, but it's a coinflip whether the link training likes a particular adapter/monitor

11:09 <macc24> okay, thanks, is everything required on your github?

11:09 <kuruczgy[m]> [ 10.291274] ov02c10 11-0036: Error reading reg 0x300a: -6

11:09 <kuruczgy[m]> [ 10.291279] ov02c10 11-0036: failed to find sensor: -6

11:09 <kuruczgy[m]> bryanodonoghue: ^

11:10 <kuruczgy[m]> macc24: yep, this is the kernel package definition: https://github.com/kuruczgy/x1e-nixos-config/blob/main/packages/x1e80100-linux.nix

11:11 <kuruczgy[m]> Basically it's just this patch: https://github.com/kuruczgy/x1e-nixos-config/blob/main/packages/lenovo-yoga-slim7x-dp-altmode.patch

11:15 <bryanodonoghue> kuruczgy[m] could i trouble you for your latest full dmesg ?

11:15 <kuruczgy[m]> bryanodonoghue: https://gist.github.com/kuruczgy/7ee9da424fc0faef4d6eb8b7980c3110

11:16 <bryanodonoghue> and your kconfig ?

11:18 <macc24> kuruczgy: thanks i'll check it out. broke the internal display and i need some files from it before the lenovo folks can repair it :/

11:19 <kuruczgy[m]> bryanodonoghue: updated the above gist with the output of `cat /proc/config.gz | gunzip`

11:19 <kuruczgy[m]> macc24: Oh :/ Was it mechanical damage?

11:20 <macc24> yeah

11:22 <kuruczgy[m]> (Though for data recovery IMO either SSH or removing the NVMe drive would be simpler than getting dp altmode to work.)

11:43 <macc24> might as well get usb-dp working in cadmium while i'm at it

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12:46 <anthony25> macc24: it worked for me, but only one port can push 4K 60hz

12:47 <anthony25> And the right port doesn't work for display port

12:47 <anthony25> It's also the case on windows, but I haven't tested the last BIOS update

12:51 <anthony25> (for windows, I mean dp-alt also doesn't work on the port on the right)

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14:18 <bryanodonoghue> kuryczgy[m] and anthony25

14:18 <bryanodonoghue> kyruczgy[m]

14:18 <bryanodonoghue> could you guys try to confirm the sensors

14:19 <bryanodonoghue> on your windows partition

14:19 <bryanodonoghue> find . -name "*sensor*" -print | grep camera

14:19 <anthony25> I'll tell you that in a few hours

14:20 <bryanodonoghue> you can see dell ships ov02c10 and ov02e10

14:20 <bryanodonoghue> https://github.com/0xB0D/dell-inspiron14-camera/blob/main/README.md?plain=1

14:21 <bryanodonoghue> I experimented with getting the ov02c10 sensor to talk to my ov02e hardware

14:21 <bryanodonoghue> mostly to confirm the sensor driver works, powers on, gpios if correct will switch on the sensor

14:22 <bryanodonoghue> https://github.com/0xB0D/dell-inspiron14-camera/blob/main/README.md?plain=1

14:22 <bryanodonoghue> you can see with the diff

14:22 <bryanodonoghue> switch the CHIP_ID reg to 0

14:22 <bryanodonoghue> change the compat string

14:22 <bryanodonoghue> and the ov02c10 driver chokes on the returned ov02e CHIP_ID

14:22 <bryanodonoghue> which means the dtsi and sensor driver together do work

14:23 <bryanodonoghue> so I'm thinking perhaps slim7x doesn't have ov02c10

14:23 <bryanodonoghue> in my repo is v9 of ov02c10

14:23 <bryanodonoghue> v7 works with the dell xps

14:24 <bryanodonoghue> so...

14:25 <bryanodonoghue> when i run

14:25 <bryanodonoghue> find . -name "*sensor*" -print | grep cam

14:25 <bryanodonoghue> ./Windows/System32/DriverStore/FileRepository/qccamfrontsensor_extension8380.inf_arm64_6d0b43623cc44436/com.qti.sensormodule.ov02e10.bin

14:25 <bryanodonoghue> ./Windows/System32/DriverStore/FileRepository/qccamauxsensor_extension8380.inf_arm64_ed9e57b0ae5c35ca/com.qti.sensormodule.hm1092.bin

14:26 <bryanodonoghue> so the RGB and B+W sensors enabled ov02e10 and hm1092 are clear

14:26 <bryanodonoghue> need to see that output on slim7x to be sure we are trying to enable the right sensor ;)

14:56 <jhovold> steev: sounds good, thanks

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15:41 * kuruczgy[m] sent a code block: https://matrix.org/oftc/media/v1/media/download/ASX17mhiFuLtUguoKE4sMoLw-rw_qeQLTLlMjJB_5Cg3rcGQSvGKz2_C0r9G05h4vBaT0QxMaZB8jZH4yaNMtaJCeV57b8mQAG1hdHJpeC5vcmcvVFp2V1Z5b3V3RVVUeFRPQW9PZkdVYmpZ

15:41 <kuruczgy[m]> bryanodonoghue: ^

15:42 <kuruczgy[m]> I see ov02c10 and ov08x here

15:46 <kuruczgy[m]> According to the Omnivision website the ov02c10 is the one with the right res (1920 x 1080), the ov08x is bigger (3840 x 2400).

15:46 <kuruczgy[m]> slim7x datasheet claims it has a "FHD 1080p (2.0MP)" camera, so that matches up with the ov02c10

15:58 <anonymix007[m]> bryanodonoghue: doesn't seem to be working on T14s either, though the error is -110 here.... (full message at <https://matrix.org/oftc/media/v1/media/download/AeKW0J_-EDka3cTBxI_r8UgnxwBldGejt_9arCFePLmHVVGliGRwOb0L2Qherr8JkDIkYs0qHFsLn2PJGe0IWUNCeV58aQ4AAG1hdHJpeC5vcmcvVEpnalVWYVJwUVhKeXNxcHNNeE1NaGlD>)

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18:27 <steev> jhovold: at this point it is 1 day 8 hours without

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18:44 <bryanodonoghue> ok thanks let me check with the Dell XPS guy if the v9 ov02c10 still works for him

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