#aarch64-laptops on 2025-05-03 — irc logs at oftc.catirclogs.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

00:08 <steev> looks like 6.12.19, so yeah you should have it

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00:41 <erebion> Also, I have libcamera installed

00:42 <erebion> Still GNOME Camera says "no camera found"

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01:37 <steev> are you sure you're using the debian kernel's dtb?

01:38 <steev> if you install libcamera-tools what does cam -l say?

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04:00 <mynery[m]> i just updated my nix on x13s and my new generation only boots to a tty instead of a gui. were there any issues regarding this with the mainline kernel? i assume not, but who knows

04:00 <mynery[m]> also, is there a maintained fork of the nixos-x13s flake that supports mainline or should i just ditch the flake at this point?

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09:33 <hogliux> Will there ever be any chance of getting USB4 PCIe tunneling working on linux for slim 7x? It definitely works on Windows.

09:33 <hogliux> Here is a screenshot of all the PCI devices when I don't have a thunderbolt device plugged in: https://pasteboard.co/BgR4n6J58PTr.png

09:34 <hogliux> and here is a screenshot with a thunderbolt network device plugged in Windows (obviously there are no arm64 drivers for windows for this device): https://pasteboard.co/NDB0EdySTvPe.png

09:35 <hogliux> I can see in device manager that the thunderbolt root bridge is attached to the PCI root bus at ACPI\PNP0A08\0. So I could look at the ACPI tables to figure out which PCI bus that is and enable it in the slim 7x dts

09:37 <hogliux> But I think I'd probably also need patches to the ps883x driver to actually pass-through the PCI signals. Are there any datasheets for the ps883x anywhere (I couldn't find any). Any ideas from anybody else on how I could go about to try to add linux support for PCIe passthrough?

09:38 <HdkR> Would be nice.

09:38 <hogliux> (It surprised me btw that for the USB4 PCIe tunneling, Qualcomm seems to be relying on Intel chips, i.e. Alpine Ridge. See second screenshot above)

09:43 <travmurav[m]> perhaps that's in the adapter?

09:45 <hogliux> Hmmm maybe. Multiple thunderbolt devices list the same chip though. But possible.

09:45 <hogliux> Is the ps883x connected via i2c or similar? If there is some kind of way to record i2c messages in Windows then I could record what happens when a thunderbolt device is plugged in and experiment with replaying that on Linux

09:50 <JensGlathe[m]> i2c

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13:12 <erebion> Wifi often stops working on the X13s, forcing me to reboot:

13:12 <erebion> [24099.709021] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 416, expected 1480

13:12 <erebion> [24100.326269] ath11k_pci 0006:01:00.0: invalid pdev_id 1 in mgmt_rx_event

13:12 <erebion> [24100.326379] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1480, expected 1484

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13:12 <erebion> [24100.326391] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1472, expected 1480

13:12 <erebion> [24100.326643] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1476, expected 1492

13:12 <erebion> [24100.326652] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1472, expected 1476

13:12 <erebion> [24100.327828] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1468, expected 1472

13:13 <erebion> [24100.327930] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1488, expected 1492

13:13 <erebion> [24100.329315] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1480, expected 1488

13:13 <erebion> [24100.329466] ath11k_pci 0006:01:00.0: HTC Rx: insufficient length, got 1452, expected 1480

13:13 <erebion> [24100.403809] ath11k_pci 0006:01:00.0: failed to enable PMF QOS: (-11

13:13 <erebion> [24104.828190] ath11k_warn: 6 callbacks suppressed

13:13 <erebion> Any workaround so that I at least do not have to reboot?

13:13 <erebion> Or maybe even something I can do to avoid the issue?

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13:15 <erebion> modprobe -r ath11k_pci && modprobe ath11k_pci <- this helps, but of course not a permanent solution

13:15 <erebion> steev: cam -l says this:

13:15 <erebion> [6:53:09.794056224] [64765] INFO Camera camera_manager.cpp:327 libcamera v0.4.0

13:15 <erebion> Available cameras:

13:56 <spawacz> erebion: I'm also on 6.12.12 from Debian and "qcam" works for me

13:57 <erebion> Then what is the difference?

13:57 <erebion> What camera related packages have you got installed? Maybe I'm missing a dependency?

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14:45 <spawacz> cam -l reports "1: Internal front camera (/base/soc@0/cci@ac4c000/i2c-bus@1/camera@10)"

14:46 <spawacz> the same version of libcamera as you

14:47 <spawacz> I'm using dtb from a patched kernel, though

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15:00 <erebion> In what way does it differ from the current weekly installer DTB provided by Debian, to which I updated yersterday?

15:06 <erebion> ( https://d-i.debian.org/daily-images/arm64/daily/device-tree/qcom/sc8280xp-lenovo-thinkpad-x13s.dtb )

15:07 <erebion> Could you point me to the source of your DTB so I can find the one from Debian and compare whether that might be different for anything camera related?

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15:22 <tstachecki> managed to get audio working on SL7 with pulse by adding load-module module-alsa-sink device=hw:X1E80100Romulus,1. not sure why it doesn't auto detect.... Will look more later

15:31 <tstachecki> retracing steps... Seems I also had to run alsaucm -c hw:0 set verb HiFi, probably something related to auto detection also

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19:18 <steev> erebion: unfortunately, the htc rx insufficient thing needs a patch - in kali, i had sophie (she does our kernel bumps) apply jhovold's patch https://github.com/jhovold/linux/commit/7ea7822ac5c32e8c092da43a7ae74dd809efc976 - unfortunately, i'm not sure the status of it, so i don't know if debian would accept it into their kernel sources

19:18 <steev> they typically won't pull something in until its in at least linux-next

19:42 <steev> erebion: is that daily built against trixie or against sid?

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20:21 <erebion> steev: Not sure

20:22 <steev> just grabbing the dtb from the daily-image, you should have it as part of linux-image-6.12.xx... in /usr/lib/linux-image-$(uname -r)

20:23 <steev> dpkg -S sc8280xp-lenovo-thinkpad-x13s.dtb

20:24 <steev> linux-image-6.12.25-arm64: /usr/lib/linux-image-6.12.25-arm64/qcom/sc8280xp-lenovo-thinkpad-x13s.dtb

20:24 <steev> that's for me, but we're on the 6.12 from unstable

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20:57 <erebion> [6:53:09.794056224] [64765] INFO Camera camera_manager.cpp:327 libcamera v0.4.0

20:57 <erebion> Available cameras:

20:57 <erebion> steev: cam -l says this:

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20:58 <steev> is that after switching to the 6.12 dtb?

20:59 <steev> assuming they aren't the same

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21:04 <erebion> I didn't notice I could simply take it from that package, I downloaded the DTB from the Debian FTP archives linked to on the X13s page in the wiki, maybe my DTB did not match my kernel, now rebooting and testing again...

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21:06 <erebion> Nope, cam -l still does not list a camera

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21:18 <steev> do you still have that udev rule in place because i don't have any

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21:37 <KieranBingham[m]> erebion: to get anything useful for debugging, at the debug log levels.

21:37 <KieranBingham[m]> LIBCAMERA_LOG_LEVELS=*:0 cam -l

21:38 <KieranBingham[m]> That should be more descriptive over what's happening. Also try running with sudo after to check if it's a permissions thing

21:38 <KieranBingham[m]> Really got to make a script for all of this.

21:38 <KieranBingham[m]> After that, check the dmesg for any failed drivers, and media-ctl -p

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