19:15 <wizzard> Hi, has anyone noticed, that since 6.12-18 the external monitor (usb c to hdmi) support has goten worse? TTY works fine for me, but sway is the only DE which does not crash. When logging in there is some static, before the image is correct. After suspend I need to toggle the screen of and on to make it output anything. This is accompanied by a low pitch and then high pitch whining in my screen.

19:15 <wizzard> Also I lost the abillity to change the brightness of the t14s screen since I upgraded to the 6.12 kernel

19:17 <wizzard> Is anyone going to 38C3 and interested in talking about our endeavors 🙂

19:19 <Jasper[m]> Yep

19:20 <JensGlathe[m]> Uh...just compiling 6.12.0-18. Did a few tests with 6.12.0-16 and it generally worked fine. Or lets say "behaves well enough". To reliably enable external display you need to boot it with adapter plugged in (yigh), hot-plug is a gamble with diminishing chances.

19:22 <JensGlathe[m]> stacked up on other adapters: type-c to HDMI/VGA/DVI/USB combo, and a type-c to dp 8k cable.

19:23 <wizzard> Shall we organise a banner or a table or something? Is there anything planned? I would like to have a sign or something better. Lets not spam the chat here: We can brainstorm in this pad: https://t1p.de/aarch64at38C3

19:24 <JensGlathe[m]> and I added the newest variand of [LTTPR support from lore](https://lore.kernel.org/all/20241031-drm-dp-msm-add-lttpr-transparent-mode-set-v1-0-cafbb9855f40@linaro.org/)

19:27 <wizzard> jensGlathe[m]: I should try that. Using 6.12-20 my process of booting is the following. Remove all external devices. Insert the one usb stick, which makes grub not crash. Boot. There will be a kernel panic and a rescue shell. Force Reboot. Now Grub shows up. Boot the first entry. Wait for GDM to show up. Unplug the USB Stick. Connect the USB-C to HDMI hub. Login.

19:28 <JensGlathe[m]> Oh this sounds hacky

19:28 <JensGlathe[m]> T14s 64GB I assume

19:28 <wizzard> The kernel crash has only started to occur since 6.20. No I am using the 32GB Version.

19:29 <tobhe> wizzard: I'll be at 38c3

19:30 <tobhe> and I reverted the brightness control because it broke the oled model

19:30 <tobhe> we probably need separate dts for those...

19:35 <wizzard> I would be really grateful if I could help and contribute a bit at 38C3. I am using the T14s as my daily driver 🙂 If you are also interested, I could check if we can have a table at the cluster I am part of. I would hope that some publicity will bring us more hackers. If you have any ideas you can write them into the pad I linked above.

19:54 <derzahl> anyone know of a newish bootable img for getting linux on a c630? Just ran the lenovo windows restore since something got boned way back when

19:55 <derzahl> also is there any reason to bothing updating windows to get latest firmware etc? I have a dump of firmware extracted from the windows install from a couple years ago

19:57 <spawacz> is there some builtin loudness equalization in x13s? the audio through the headphone jack sounds so odd, the volume is going up and down like on stairs. It doesn't happen when headphones are plugged to a dock and dock to the laptop

20:10 <steev> derzahl: i don't... i would *guess* that a new enough debian installer iso should work at this point?

20:10 <steev> as lonng as the dtb is available

20:14 <derzahl> steev: from 2021? yeh thats all i could find

20:14 <derzahl> ok, its a starts

20:14 <steev> i meant the actual debian installer

20:14 <steev> not bookworm though, a trixie/testing/sid one

20:15 <steev> i should try that here soon, i want to redo my system now that i've got a much firmer grasp of things than when i first got my c630

20:21 <derzahl> https://github.com/aarch64-laptops/debian-cdimage right?

20:22 <derzahl> steev: did you ever figure our what all those other little disks and partitions are for? In windows its actually showing that I have a "disk" with 13GB unallocated space

20:22 <steev> no, i meant from debian.org - trixie and newer should have a 6.11+ kernel which should have all the support (iirc)

20:22 <derzahl> oddly when i right click on the windows partition and select shrink nothing happens at all...no popup dialog

20:22 <derzahl> ohh ok

20:23 <steev> they're... various TZ related stuffs

20:23 <derzahl> so pretty much anything with a 6.11+ kernel and the dtb should work then?

20:23 <steev> the only thing i can think of is that they don't have enough room on the boot/efi partition for the dtb file, so you might have to do some weirdness with the partition to expand it to put the dtb on there. i keep meaning to ask about that in debian-arm

20:24 <steev> the support has been in since ~6.7? but 6.11 got the audio fixes (or maybe it was 6.12 and backported to 6.11 stables)

20:41 <Jasper[m]> @spawacz it gets fucky over some volume amount.

20:41 <Jasper[m]> Calibration for audio hasn't been done yet so these are semi-safe defaults

21:04 <HdkR> The headphone jack is trying to be safe? Does it have some sort of impedance measurement circuit so it doesn't just assume crappy low-end headphones or something?

21:05 <Jasper[m]> There's some amp before it aswell

21:05 <Jasper[m]> And iirc it just hasn't been calibrated yet either

21:07 <HdkR> I haven't tried it, but that sounds like if I plug in my 800ohm headphones, then I'll basically get zero sound :D

21:07 <derzahl> hm aarch64 install iso with no dtbs? thanks debian https://cdimage.debian.org/cdimage/weekly-builds/arm64/iso-dvd/debian-testing-arm64-DVD-1.iso

21:08 <derzahl> is there another one i should be using?

21:24 <spawacz> Jasper[m]: what component of the system is reponsible for that behavior? Is the the audio player, pulseaudio, the driver, or firmware?

21:25 <Jasper[m]> <HdkR> "I haven't tried it, but that..." <- I have plugged in my hard to drive headphones aswell and it still messes up above 30% vol

21:26 <Jasper[m]> spawacz: I've had behaviour change between pw and pa, but it's janky regardless

21:27 <HdkR> Huh, interesting

21:28 <spawacz> Hm, I don't mean glitches and screeching sound - that happens under pipewire. With pulseaudio the sound is perfectly smooth and continuous, but the volume jumps abruptly

21:28 <spawacz> so when a sound fades and gets quieter, I actually hear it jump in volume up and up 5 times before it ends

21:47 <gwolf> steev: I recall your modified d-i image copied over some firmware from Windows. I guess that will still be required if installing from a regular d-i

21:48 <steev> ah, yeah we still don't have c630 firmware in linux-firmware huh

21:48 <gwolf> And... Well, I have kept hand-copying dtbs per kernel...

21:49 <gwolf> So d-i should do a good portion of the work... But we should ™ document what is needed to actually get a working system...

21:59 <derzahl> i dont think the c630 firmware is required for install right? just wifi

22:01 <JensGlathe[m]> yay... (full message at <https://matrix.org/oftc/media/v1/media/download/Aaab4rC0lMNRRWHtPf3z-4Eqn6CIwumyXmwz-Brd-wkMfNkzEZcpAejJhUo2EPS9ZI4hY1qlk0tJa_xM1v56HGhCeUGZZUGgAG1hdHJpeC5vcmcvUHJlcWtWUFJGS1Jtd3NETllySXZhbG1k>)

22:01 <derzahl> anyway, i extracted the sdm845-lenovVsfjlnvd.dtd for the aarch64 debian iso kernel package, put it on a usb drive with ventoy and the debian iso and then loaded linux,initrd, and devicetree from grub cmdline. it didnt like that any better

22:02 <derzahl> so im back to using the old shawnguo image

22:02 <JensGlathe[m]> I added the RTC patches, but it didn't want to initialize. On 6.12.0-18 it works

22:27 <TheBITLINK[m]> aren't some kernel modules and command line arguments required for it to actually boot?

22:29 <TheBITLINK[m]> I installed Debian the other day, but I started from the Ubuntu Concept live USB, installed debootstrap and set everything up manually, couldn't bother trying to get the Debian installer to boot

22:35 <JensGlathe[m]> Ubuntu concept gets by without the cl arguments. No idea how, didn‘t look into the qcom-settings package. But apparently there’s a way

22:49 <tobhe> JensGlathe[m]: https://git.launchpad.net/~ubuntu-cdimage/debian-cd/+git/ubuntu/tree/tools/boot/oracular/boot-arm64#n70

22:51 <tobhe> that is the regular ubuntu one actually. concept is a bigger mess

23:31 <_merk> hello ladies

23:31 <_merk> top of the moaning to you

23:35 <_merk> jive