[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #75 from Ralph Martin (ra...@cs.cf.ac.uk) --- Excellent news! Thanks again, Diogo! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Artem S. Tashkinov (a...@gmx.com) changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |PATCH_ALREADY_AVAILABLE -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #74 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Good news, the fix has been merged and will make it into Linux 6.10, one version sooner than expected! You can find the commit here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9e3caa9dd51b23e232f095a98336a84f42e4a7f2 Since we are in 6.10-rc6 I expected that the final kernel version will be released in about two weeks time, meaning that if you are running a rolling release distro you should get it around this time as well. For other distros I don't know when they will package 6.10 (or later) kernels, but keep an eye out for it. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #73 from Ralph Martin (ra...@cs.cf.ac.uk) --- Excellent! Thank you again, Diogo for your assistance with this quirk of the LG Gram series. I can confirm that I have built a new version of your module using your patch, with your debugging code stripped out, and have been using it a while now with Debian testing kernel 6.7.12, to great effect and no side effects as far as I can see. It is also working well with kernel 6.8.12, since this morning. Ralph -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #72 from Víctor (victor.ballester.r...@gmail.com) --- The question is who among us would not build a monument for Diogo... Thanks a lot! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #71 from RobinLabadie (linuxker...@lrob.fr) --- (In reply to Diogo Ivo from comment #70) > Hello, > > I have submitted the patch here: > > https://lore.kernel.org/linux-usb/20240612-gram_quirk-v1-1- > 52b0ff0e1...@tecnico.ulisboa.pt/ > > and it already has the Reviewed-by from the UCSI driver maintainer, > so if all goes well we could see this in Linux 6.11. > If there are any updates I'll be sure to post them here! > > Thanks, > Diogo Hi Diogo, I cannot thank you enough for your involvement in resolving this issue. The how and whys of the fix go beyond my understanding, but I'm really glad to see this on the way to be resolved! Thank you so much! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #70 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hello, I have submitted the patch here: https://lore.kernel.org/linux-usb/20240612-gram_quirk-v1-1-52b0ff0e1...@tecnico.ulisboa.pt/ and it already has the Reviewed-by from the UCSI driver maintainer, so if all goes well we could see this in Linux 6.11. If there are any updates I'll be sure to post them here! Thanks, Diogo -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #69 from Ralph Martin (ra...@cs.cf.ac.uk) --- Hi Diogo, any idea when your fix will become official? Thanks Ralph -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #68 from Lyn (905002146...@gmail.com) --- Hi Diogo, Logs collected and emailed to you, thanks! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 tomasz@gmail.com changed: What|Removed |Added CC||tomasz@gmail.com --- Comment #67 from tomasz@gmail.com --- I am currently using a ThinkPad X1 Carbon Gen 8 with an Intel(R) Core(TM) i7-10510U CPU. My kernel version is 6.9.3-arch1-1. I am encountering an issue with kacpi_notify threads running at 100% usage. When I set the governor through cpupower to "performance," the sensors quickly show temperatures of up to 90+ degrees Celsius. This issue persists even when no devices are connected to the USB-C port, and even when the laptop is completely unplugged. The problem is temporarily resolved by utilizing the suspend/wake functionality, but it reoccurs after the next reboot. I am eagerly anticipating a permanent solution to this problem. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #66 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hi Lyn, To see if the problem is the same as the 1xZ90Q models can you follow the procedure I described in comment 48? Just the part that refers to ucsi_acpi_old.ko as this is enough for me to see if the problem is the same. Let me know if you encounter any problems. Thanks! Diogo -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Lyn (905002146...@gmail.com) changed: What|Removed |Added CC||905002146...@gmail.com --- Comment #65 from Lyn (905002146...@gmail.com) --- Hi Diogo, Thank you so much for the patch! I have a 2023 LG Gram 17Z90R model (17Z90R-G.CD7BC to be exact) and I'm experiencing the same problem that can't be fixed by `rmmod int3403_thermal`. I'm using Arch with kernel 6.9.3-arch1-1. Given that the vast majority of contributors here are using models ending with 90Q, I was wondering if the kernel patch above would work for me as well. I'd be more than happy to share my logs with you if you need additional information to determine the compatibility. Thanks! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #64 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hi Víctor, If you are seeing the problem then it should work :) Can you send me an e-mail with the distro you are using and current kernel version? Thanks! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #63 from Víctor (victor.ballester.r...@gmail.com) --- Thank you very much Diogo. My model is 17ZD90Q, with the D in the middle, which right now I don't remember exactly what was its meaning (maybe without OS by default?). Let me know if it should work, thanks in advance. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #62 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hi Ralph, That's great, thank you for your time! So this is confirmed working on the 16Z90Q by both me and you. It would be great if people with the other affected models chimed in as well so we can fix this everywhere. If anyone has a model other than the 16Z90Q you can write to me here or via e-mail and I'll be happy to help you get this tested. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #59 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hi Ralph, Thank you for trying the instructions. You can safely ignore the BTF related stuff, don't worry about it :). Do you have any newer kernels pre-built that you can try running on your system? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #58 from Ralph Martin (ra...@cs.cf.ac.uk) --- Hi Diogo When I try to compile the modules following your instructions, I got Skipping BTF generation for /home/ralph/Downloads/linux-6.9.1/drivers/usb/typec/ucsi/ucsi_acpi.ko due to unavailability of vmlinux It was not clear if that was essential or not. I tried to fix this up, but after copying `/sys/kernel/btf/vmlinux` to corresponding position and with `dwarves` installed, building the kernel module throws an error: `/bin/sh: 1: ./tools/bpf/resolve_btfids/resolve_btfids: not found`. I see Bug#1027306: mentions this issue. I am getting further from trying out your fix it seems, rather than closer... -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #57 from Ralph Martin (ra...@cs.cf.ac.uk) --- Hi Diogo I followed your instructions (I am using the current testing kernel 6.7.12), building the module with the 6.9.1 sources, disabling safe boot, and got insmod: ERROR: could not insert module drivers/usb/typec/ucsi/typec_ucsi.ko: Unknown symbol in module insmod: ERROR: could not insert module drivers/usb/typec/ucsi/ucsi_acpi.ko: Unknown symbol in module when trying to insert the compiled modules. (ucsi_acpi is blacklisted at boot, but that does not sound like it is the problem so it was not unexpected that I got the following when trying to unload the existing modules rmmod: ERROR: Module ucsi_acpi is not currently loaded rmmod: ERROR: Module typec_ucsi is not currently loaded Happy to try again if there is something else I can do. Perhaps I really need to build a new kernel - time I learnt how to do that? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #56 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Created attachment 306315 --> https://bugzilla.kernel.org/attachment.cgi?id=306315=edit Fix patch -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #55 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Created attachment 306314 --> https://bugzilla.kernel.org/attachment.cgi?id=306314=edit Debug patch -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #54 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hello, The updated instructions are: - Get the kernel source from kernel.org (v6.9.1) and extract it to a folder. Download both debug.patch and fix.patch as well. - Extract the kernel tarball: tar xf linux-6.9.1.tar.xz - cd into the folder where the kernel was extracted and apply only debug.patch: git apply /path/to/debug.patch - Compile the modules with: make -C /lib/modules/`uname -r`/build M=$PWD/drivers/usb/typec/ucsi/ - Remove both ucsi_acpi and typec_ucsi: sudo rmmod ucsi_acpi sudo rmmod typec_ucsi - Insert the compiled versions of the modules (with all USB-C cables unplugged): sudo insmod drivers/usb/typec/ucsi/typec_ucsi.ko sudo insmod drivers/usb/typec/ucsi/ucsi_acpi.ko Then follow the procedure I described in the previous instruction post to obtain the log file. When this is done - Apply fix.patch on top: git apply /path/to/fix.patch - Compile the modules with: make -C /lib/modules/`uname -r`/build M=$PWD/drivers/usb/typec/ucsi/ - Remove ucsi_acpi: sudo rmmod ucsi_acpi - Insert the updated version of the module (with all USB-C cables unplugged): sudo insmod drivers/usb/typec/ucsi/ucsi_acpi.ko And again follow the procedure described above to get the log file. Hopefully these instructions are clear. If you need further clarification I'll be happy to help! Thanks, Diogo -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #53 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hi Ralph, I guess the only option is to compile the kernel module from source. I'll place the patches and instructions here soon. Thanks, Diogo -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #52 from Ralph Martin (ra...@cs.cf.ac.uk) --- Hi Diogo, any suggestion how I can proceed beyond the error message I reported when trying to install your patched module? Thanks Ralph -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #51 from Ralph Martin (ra...@cs.cf.ac.uk) --- I also tried 6.5 and 6.6 series kernels, with the same outcome. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #50 from Ralph Martin (ra...@cs.cf.ac.uk) --- OK, I used mokutil to turn off secure boot, but when I tried to insert the old version of your module I got insmod: ERROR: could not insert module ucsi_acpi_old.ko: Invalid module format and in the log module ucsi_acpi: .gnu.linkonce.this_module section size must match the kernel's built struct module size at run time uname -a reports I am running the following kernel on debian testing Linux gram 6.7.12-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.7.12-1 (2024-04-24) x86_64 GNU/Linux -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #49 from Ralph Martin (ra...@cs.cf.ac.uk) --- Model 16Z90Q-K.AD78A1 Unfortunately, I get the below trying to unload then insert your (old) module: rmmod: ERROR: Module ucsi_acpi is not currently loaded insmod: ERROR: could not insert module ucsi_acpi_old.ko: Key was rejected by service The first message is presumably because I had originally blacklisted the module. The second also resulted in the following in the dmesg window: Loading of unsigned module is rejected I guess this is because I am using secure boot. Is there anything else I can do (can I disable secure boot on a temporary basis?) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #48 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Ok, I have submitted two versions of the kernel module: ucsi_acpi_old.ko and ucsi_acpi_fix.ko. Both of them print debug messages to dmesg. Important: These should only fix the problem for laptops with a model like xxZ90Qxx (example: 16Z90Q-); if your model does not contain the exact string Z90Q then you can skip the following for now and please let me know what your exact model number is so that I can add support for those models as well. In order to use them you need to: Download modules, place them somewhere and cd to that folder, then open a terminal on that folder and, with everything unplugged from USB-C ports, do: sudo dmesg -w // Do this in another terminal window sudo rmmod ucsi_acpi sudo insmod -f ucsi_acpi_old.ko // Insert the stock module with debug info Let it finish outputting things to dmesg and then connect something to a USB-C port, wait a few seconds and then disconnect. Collect the logs from that to a file Then: sudo rmmod ucsi_acpi sudo insmod -f ucsi_acpi_fix.ko // Insert the (hopefully) fixed module with debug info Again, let it finish outputting things to dmesg and then connect something to a USB-C port, wait a few seconds and then disconnect. Collect the logs from that to a file. Finally, sudo rmmod ucsi_acpi When all of this is done please send the files to this thread so that I can see if this is working. Thank you for testing this, it is really helpful :) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #47 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Created attachment 306278 --> https://bugzilla.kernel.org/attachment.cgi?id=306278=edit Fixed ucsi_acpi kernel module with debug prints -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #46 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Created attachment 306277 --> https://bugzilla.kernel.org/attachment.cgi?id=306277=edit Stock ucsi_acpi kernel module with debug prints -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #45 from Ralph Martin (ra...@cs.cf.ac.uk) --- Hi Diogo, it would probably be easier for many of us if you could provide the module and instructions on how to use it... Thanks. Ralph -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #44 from Víctor (victor.ballester.r...@gmail.com) --- Same for me, but I don't know how I can compile the kernel by myself. I usually use zen kernel. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #43 from PinkFromTheFuture (eduardoxfurt...@gmail.com) --- Great news! But could you also provide instructions on how to easily do what you are asking us to do? I would be happy to help, but I don't have time to tinker with it too much right now. I imagine we should also disable the workarounds that we put into place? On Thu, May 9, 2024 at 8:42 AM wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=217076 > > --- Comment #42 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- > Hello, > > I think I have a fix for this problem and would like your help in > confirming > that the fix does indeed work and to collect all of the affected models. > For > that I would really appreciate that everyone that is able to compile and > run > their own kernel tries out the patch in the link below [1] and to report > their > findings here, namely if it worked or not and the specific model of the > laptop. > I can also provide a compiled kernel module with the patch applied if that > is > more convenient. > > Thanks! > > [1]: > > > https://lore.kernel.org/linux-usb/5qc55gruhn4pmutiukohauki5dehba6n2k22jgvpt7i3hafkon@v2ng2a33o7vv/T/#u > > -- > You may reply to this email to add a comment. > > You are receiving this mail because: > You are on the CC list for the bug. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #42 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Hello, I think I have a fix for this problem and would like your help in confirming that the fix does indeed work and to collect all of the affected models. For that I would really appreciate that everyone that is able to compile and run their own kernel tries out the patch in the link below [1] and to report their findings here, namely if it worked or not and the specific model of the laptop. I can also provide a compiled kernel module with the patch applied if that is more convenient. Thanks! [1]: https://lore.kernel.org/linux-usb/5qc55gruhn4pmutiukohauki5dehba6n2k22jgvpt7i3hafkon@v2ng2a33o7vv/T/#u -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #41 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Yeah, the fix should come from LG but as you said they are not providing BIOS updates. What happens in these situations is that we accept that the thing is buggy and add quirks for these devices to the drivers (the UCSI driver already has quirks for Dell and Asus laptops). -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #40 from kte...@ktecho.com --- (In reply to Diogo Ivo from comment #39) > I have been investigating this problem and I have found out that the UCSI > implementation in these laptops does not conform to the UCSI specification > in multiple locations. > I am trying to figure out the best way to approach this to mainline a fix > but for the moment being my recommendation is to just 'rmmod ucsi_acpi'. > Since the goal of this functionality is only to report the current state of > the USB-C connectors to the OS there will be no change in how the system > operates, as this control will still be done by the EC regardless. I was just going to ask if this was an Intel problem, or an LG one, but I guess it's LG's fault, right? And I guess that should be fixed in the BIOS, and they won't do it, because afaik, LG doesn't release BIOS fixes... -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #39 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- I have been investigating this problem and I have found out that the UCSI implementation in these laptops does not conform to the UCSI specification in multiple locations. I am trying to figure out the best way to approach this to mainline a fix but for the moment being my recommendation is to just 'rmmod ucsi_acpi'. Since the goal of this functionality is only to report the current state of the USB-C connectors to the OS there will be no change in how the system operates, as this control will still be done by the EC regardless. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #38 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- This makes sense, when you mask GPE 0x6E during boot the initialization of the UCSI driver fails with this timeout and then it is safe for us to unmask the GPE again since the driver will not care for the EC UCSI notifications. Thank you for checking! -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #37 from kte...@ktecho.com --- I forgot to say that it's an Intel i7-1360p and I'm booting with this: GRUB_CMDLINE_LINUX_DEFAULT="acpi_mask_gpe=0x6E" -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 kte...@ktecho.com changed: What|Removed |Added CC||kte...@ktecho.com --- Comment #36 from kte...@ktecho.com --- (In reply to Diogo Ivo from comment #35) > Yes, sudo dmesg and then check if there is anything regarding ucsi by > grepping; if you can it would be nice to send the full log to this thread. I have an LG gram 15ZD90R. This is what I get $ sudo dmesg | grep ucsi [9.430616] ucsi_acpi USBC000:00: error -ETIMEDOUT: PPM init failed -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #35 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Yes, sudo dmesg and then check if there is anything regarding ucsi by grepping; if you can it would be nice to send the full log to this thread. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #34 from PinkFromTheFuture (eduardoxfurt...@gmail.com) --- (In reply to Cristian Cocos from comment #33) > (In reply to PinkFromTheFuture from comment #31) > > Please keep in mind that our solution consists of first masking it with the > > grub options, but after the system has booted, we unmask it - it does not > > stay masked. > > Masking at boot-time and unmasking some time afterward does not always work > (see, e.g., comment #14 above). To make sure the issue has been fixed, the > mask needs to stay on all the time. This is my experience. Same experience with me, unless I add to my service: ``` ExecStartPre=/bin/sleep 120 ``` Before unmasking it. (In reply to Diogo Ivo from comment #32) > Ok, so when you do that masking and unmasking can you check if something > regarding an UCSI timeout appears in the dmesg? Yes. How? Just do the following? ``` sudo dmesg ``` Or maybe I can grep the output? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #33 from Cristian Cocos (cri...@ieee.org) --- (In reply to PinkFromTheFuture from comment #31) > Please keep in mind that our solution consists of first masking it with the > grub options, but after the system has booted, we unmask it - it does not > stay masked. Masking at boot-time and unmasking some time afterward does not always work (see, e.g., comment #14 above). To make sure the issue has been fixed, the mask needs to stay on all the time. This is my experience. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #32 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Ok, so when you do that masking and unmasking can you check if something regarding an UCSI timeout appears in the dmesg? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #31 from PinkFromTheFuture (eduardoxfurt...@gmail.com) --- I am also going to test the solution with rmmod ucsi_acpi, without the masking of gpe6E. Please keep in mind that our solution consists of first masking it with the grub options, but after the system has booted, we unmask it - it does not stay masked. I believe the solution using rmmod ucsi_acpi could have cosnequences when it coems to battery management, or interfacing with usb devices, so I'm curious to learn more about it. (In reply to Cristian Cocos from comment #29) > If I remember correctly, the ACPI flood only happens if you hook up your > computer to a Thunderbolt docking station (and(?) run an external monitor on > the docking station). Do you have any of those lying around? False, it happens when anything is connected on the USB-C port, including the charging cable. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #30 from Cristian Cocos (cri...@ieee.org) --- I can confirm: prima facie, rmmod ucsi_acpi works fine as a substitute for masking gpe0x6E. If it is proven over time to have less of an impact on the system as a whole, I think we have a winner! (NB: rmmod int3403_thermal is still needed to stem the ACPI flood.) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #29 from Cristian Cocos (cri...@ieee.org) --- (In reply to Diogo Ivo from comment #28) > This fix does not deal with the ACPI flood (in fact on my system I don't see > that) and only addresses the high CPU usage. If I remember correctly, the ACPI flood only happens if you hook up your computer to a Thunderbolt docking station (and(?) run an external monitor on the docking station). Do you have any of those lying around? As for issue #2, if it works, your fix would, indeed, be better than masking gpe0x6E. I'll give it a try, and report back. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #28 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- This fix does not deal with the ACPI flood (in fact on my system I don't see that) and only addresses the high CPU usage. What is happening, at least on my system and I suspect on the remaining ones as well, is that there is some bug regarding UCSI and the EC keeps reporting events to the CPU via a interrupt when there is something connected to a USB-C port, leading to high CPU usage. Since the CPU gets notified through GPE0x6E masking it does also fix the issue, at the expense of all the other functionality also covered by the EC, so this is not the best approach IMHO. rmmod int3403_thermal does nothing on my system. I will try to dig deeper into the ucsi driver and see if there is anything we can do there or if this is just a firmware bug in the EC and in that case I am unsure of what the best approach is. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #27 from Cristian Cocos (cri...@ieee.org) --- (In reply to Diogo Ivo from comment #26) > Not really, UCSI is used to communicate the state of the USB-C port to the > OS and also allows for the user to set the state manually, so nothing > critical. What happens is that when something is plugged to the USB-C port > the EC starts spamming notifications for some reason, and I am still trying > to understand why. > If anyone has any suggestions I can try them out :) Have you tried masking gpe0x6E + rmmod int3403_thermal? Does that do it for you? Note that there are two distinct problems here, and I am not sure how related they are: 1. ACPI error flood; 2. High CPU usage. Which one of these is rmmod ucsi_acpi a fix for? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #26 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Not really, UCSI is used to communicate the state of the USB-C port to the OS and also allows for the user to set the state manually, so nothing critical. What happens is that when something is plugged to the USB-C port the EC starts spamming notifications for some reason, and I am still trying to understand why. If anyone has any suggestions I can try them out :) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #25 from Ralph Martin (ra...@cs.cf.ac.uk) --- Hi Diogo thanks for that suggestion. rmmod ucsi_acpi does indeed seem to fix the problem. Are there likely to be any unwanted side effects of doing this? Ralph -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Diogo Ivo (diogo@tecnico.ulisboa.pt) changed: What|Removed |Added CC||diogo.ivo@tecnico.ulisboa.p ||t --- Comment #24 from Diogo Ivo (diogo@tecnico.ulisboa.pt) --- Can you try running "rmmod ucsi_acpi" and see if that solves the issue? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #23 from Ralph Martin (ra...@cs.cf.ac.uk) --- Not for me. I have blacklisted int3403_thermal, and get various threads running as above, causing the fans to start spinning, with or without masking 6E. Seems worse when not masking, Still happens on kernel 6.6.13. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Crypt0Keeper (grandspo...@protonmail.com) changed: What|Removed |Added CC||grandspo...@protonmail.com --- Comment #22 from Crypt0Keeper (grandspo...@protonmail.com) --- Running PopOs 22.04 LTS on 6.6.10 kernel LG Gram 17Z90Q-K Only have to blacklist int3403_thermal, reboot and done deal. System is snappy, brightness works as expected, no ACPI error flood. Willing to pop around my system to help solve this problem for others if someone with more Linux experience (which is probably most of you) can direct me. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #21 from Ralph Martin (ra...@cs.cf.ac.uk) --- The above showing ACPI masking is not working around the problem is on Debian testing, with kernel 6.5.13-1 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #20 from Ralph Martin (ra...@cs.cf.ac.uk) --- Even when masking with acpi_mask_gpe=0x6E, I am still getting around 5% cpu usage from each of several kworker tasks. 122 root 20 0 0 0 0 D 6.6 0.0 0:12.72 kworker/u32:12+USBC000:00-con2 168 root 20 0 0 0 0 R 5.6 0.0 0:08.44 kworker/0:2+events 9 root 20 0 0 0 0 D 4.3 0.0 0:07.28 kworker/0:1+kacpi_notify 1744 root 20 0 0 0 0 I 2.3 0.0 0:00.74 kworker/8:3-kec_query 143 root 20 0 0 0 0 I 1.7 0.0 0:00.21 kworker/8:1-events 1506 root 20 0 1200444 128252 89052 S 1.7 0.4 0:06.29 Xorg 298 root 20 0 0 0 0 I 1.0 0.0 0:01.01 kworker/8:2-events 136 root 20 0 0 0 0 I 0.7 0.0 0:02.11 kworker/1:1-kec_query 296 root -51 0 0 0 0 S 0.7 0.0 0:01.21 irq/79-ELAN0E03:00 708 root 20 0 0 0 0 I 0.7 0.0 0:00.63 kworker/10:2-mm_percpu_wq (Other unrelated tasks removed) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #19 from PinkFromTheFuture (eduardoxfurt...@gmail.com) --- The brightness keys are the only easy to spot issue. Lots of other issues happen because of the workaround. My computer definitely behaves weirdly and seems crippled. To the point that I am even considering just using Windows on it :'( Anyone with more luck on this? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #18 from Víctor (victor.ballester.r...@gmail.com) --- (In reply to Ralph Martin from comment #16) > As noted in an earlier messge: > an observed drawback from [masking these interrupts]] is that it breaks the > functionality of the screen brightness buttons Yeah, exactly. For the moment I have it like that because I prefere to scrifice the brightness keys (and change it manually from a widget bar or something) than hearing all the time the fan at 100%. On the other hand, I was thinking if whether is possible or not to migrate (in some sense) the lecture of the brightness keys to some other acpi events with the other keyboard keys, which are 'instantaneously' read. For example the volume keys that should have a 'similar' behaviour but instead they work perfectly. Maybe this is not possible, I'm not expert in that, just suggesting something to you if you know something... -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #17 from Cristian Cocos (cri...@ieee.org) --- (In reply to Ralph Martin from comment #16) > As noted in an earlier messge: > an observed drawback from [masking these interrupts]] is that it breaks the > functionality of the screen brightness buttons Could be. I use my LG Grams mostly through docking stations, where this does not apply. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #16 from Ralph Martin (ra...@cs.cf.ac.uk) --- As noted in an earlier messge: an observed drawback from [masking these interrupts]] is that it breaks the functionality of the screen brightness buttons -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #15 from Cristian Cocos (cri...@ieee.org) --- (In reply to Ralph Martin from comment #14) > Reneabling the interrupts after boot, even with one minute delay, causes the > problem to come back for me, on Debian testing, with any recent kernel, on > an 2022 LG Gram 16. Yeah, just keep the interrupt masked and you're golden. I have not noticed any downside so far, and I have been using LG Grams for a couple of years now. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Ralph Martin (ra...@cs.cf.ac.uk) changed: What|Removed |Added CC||ra...@cs.cf.ac.uk --- Comment #14 from Ralph Martin (ra...@cs.cf.ac.uk) --- Reneabling the interrupts after boot, even with one minute delay, causes the problem to come back for me, on Debian testing, with any recent kernel, on an 2022 LG Gram 16. As a separate comment, the 'workaround' changes many other things that are unconnected to the problem, that the user may wish to set up differently. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #13 from Cherrot (cherrot...@gmail.com) --- (In reply to PinkFromTheFuture from comment #9) > Here is my elegant workaround to the problem: > ``` > [Unit] > Description=... > # more documentation: > # > https://www.reddit.com/r/LGgram/comments/150p3rg/critical_bug_affecting_the_2022_lineup_on_linux/ > > [Service] > Type=oneshot > Restart=on-failure > > # To resolve the issue with GPE interrupts, causing high temperatures and fan > noise even on idle when the laptop is charging through USB-C/TB, > # add to the kernel parameters `acpi_mask_gpe=0x6E` > # However, this will cause issues with the keyboard screen brightness > shortcuts which can be resolved by adding the Unmask GPE interrupts during > boot: > ExecStart=/bin/bash -c "echo 'unmask' > /sys/firmware/acpi/interrupts/gpe6E" > > ... Thanks for your workaround and explanation! However in my case, I found that unmask ACPI interrupt immediately after boot will bring the CPU throttle issue back. I've fixed it by adding a 1 minute sleep: ``` [Service] Type=oneshot Restart=on-failure ExecStartPre=/bin/sleep 60 ExecStart=/bin/bash -c "echo 'unmask' > /sys/firmware/acpi/interrupts/gpe6E" ``` -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #12 from Cristian Cocos (cri...@ieee.org) --- (In reply to PinkFromTheFuture from comment #11) > Could unloading int3403_thermal cause other issues?? I haven't heard of any issues from anybody about that. > I didn't quite understand this point and it feels important to me to > understand it. Could you be more precise as to what you're doing? > I thought the solution was to unmask... But you're masking it instead? gpe0x6E needs to be MASKED: acpi_mask_gpe=0x6E (note the "mask" in there). *That* is what stops the ACPI storm. Some people have reported that UNmasking that ACPI interrupt some time AFTER masking it at boot-time gives you the best of both worlds, but that is not my experience. It may work in Ubuntu, but that is not what I am running. I, for one, prefer to keep it masked. See also this: https://www.reddit.com/r/linuxhardware/comments/x97m6l/comment/izdwsxn/?utm_source=reddit_medium=web2x=3 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #11 from PinkFromTheFuture (eduardoxfurt...@gmail.com) --- (In reply to Cristian Cocos from comment #10) > Same workarounds: upon reboot (1) mask gpe0x6E, and (2) unload the > int3403_thermal module. That does it for both my LGGrams 2022 and 2023. This > can be elegantly done via a systemd service. Thanks! I just posted the results of my saga above. Could unloading int3403_thermal cause other issues?? I see you said it didn't cause any issues for you, but I heard it could, so I'm not using it as part of my solution (but I added it to the service file I shared, to help others) > Note that, in my experience, unmasking gpe0x6E some time after reboot (as > some have suggested) triggers the ACPI storm back on, so I prefer to leave > it masked. I have not noticed any issues from any of these two workarounds. I didn't quite understand this point and it feels important to me to understand it. Could you be more precise as to what you're doing? I thought the solution was to unmask... But you're masking it instead? > Alternatively, you could go back to Windows! :-) NO WAY! Argh! lol XD I rather spend hours trying to patch this issue! ;) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #10 from Cristian Cocos (cri...@ieee.org) --- (In reply to PinkFromTheFuture from comment #8) > Doesn't happen on my LG gram from 2021. I can confirm that on my LGGram 2021. > 1. I didn't find any reports of this issue for the 2023 models. Did anyone? I got a new LGGram *2023*, and yes, it DOES happen there too. (And yes, I have a 2022 LGGram as well.) > I believe that we need either a Linux Kernel patch or a BIOS update, but > there doesn't seem to be any updates to the BIOS of the 2022 lined up of LG > Gram. Fat chance! I spent a lot of time w/LG support on the phone, and their canned reply is always: "this computer is for WINDOWS ONLY. Linux need not apply!" > 2. How can we get this fixed? Who can save us!? Same workarounds: upon reboot (1) mask gpe0x6E, and (2) unload the int3403_thermal module. That does it for both my LGGrams 2022 and 2023. This can be elegantly done via a systemd service. Note that, in my experience, unmasking gpe0x6E some time after reboot (as some have suggested) triggers the ACPI storm back on, so I prefer to leave it masked. I have not noticed any issues from any of these two workarounds. Alternatively, you could go back to Windows! :-) > > 3. Are there any workarounds that can be programmatically applied? See above. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #9 from PinkFromTheFuture (eduardoxfurt...@gmail.com) --- Here is my elegant workaround to the problem: ``` [Unit] Description=Fixes many issues with the 2022 LG Grams running linux and sets charging limit to 80 # save this script to /etc/systemd/system/lg-gram.service # then run: # sudo systemctl daemon-reload # sudo systemctl enable lg-gram.service # sudo systemctl start lg-gram.service # more documentation: https://www.reddit.com/r/LGgram/comments/150p3rg/critical_bug_affecting_the_2022_lineup_on_linux/ [Service] Type=oneshot # Unmask GPE interrupts to resolve the issue of high temperatures and fan noise even on idle when the laptop is charging through USB-C/TB: ExecStart=/bin/bash -c "echo 'unmask' > /sys/firmware/acpi/interrupts/gpe6E" # sets charging limit to 80 to increase battery longevity: ExecStart=/bin/bash -c "echo 80 > /sys/class/power_supply/CMB0/charge_control_end_threshold" # Disable "Silent mode": ExecStart=/bin/bash -c "echo 1 > /sys/devices/platform/lg-laptop/fan_mode" # Unload the int3403 temp sensor library from the kernel to fix ACPI flood issue: # ExecStart=/bin/sh -c "rmmod int3403_thermal" # Disable turbo boost (trade single threaded performance for lower heat output and maybe battery life) # ExecStart=/bin/sh -c 'echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo' # ExecStop=/bin/sh -c 'echo 0 > /sys/devices/system/cpu/intel_pstate/no_turbo' # Fix for thermal throttle issue that on some distros can put the CPU running on low wattages: # ExecStart=/bin/bash -c "systemctl disable --now thermald" RemainAfterExit=yes [Install] WantedBy=multi-user.target ``` -- The issue seems to be caused by: some miscommunication between Linux thinking it can probe for thermal info on a device which did not register a handler to do so Source - https://www.reddit.com/r/linuxhardware/comments/x97m6l/fedora_lg_gram_16_2022_12th_gen_alder_lake/ (added to the original post) I'm happy to confirm that the kernel parameter acpi_mask_gpe=0x6E seems to fix the issue of fans blasting and high temperatures even on idle! An observed drawback from this solution is that is breaks the functionality of the screen brighness buttons: it still works, but you can hold it, and it also has a big delay in applying each setting - This doesn't bother me as I already use some scripts with a custom keyboard shortcut to set the brighness of all my displays at once. Another solution is unmasking the GPE interrupts not through a kernel parameter, but after boot with: echo unmask > /sys/firmware/acpi/interrupts/gpe6E - This way the brightness button issues don't manifest. Furthermore, setting the kernel parameter acpi_mask_gpe=0x6E, it could be affecting idle power draws if the values returned by GPE are used to put cpus into idle states. Thankfully the issue only happens when the laptops are charging, so it wouldn't kill battery life. >From the kernel documentation I could find: acpi_mask_gpe= [HW,ACPI]Due to the existence of _Lxx/_Exx, some GPEs triggeredby unsupported hardware/firmware features can result inGPE floodings that cannot be automatically disabled bythe GPE dispatcher.This facility can be used to prevent such uncontrolledGPE floodings.Format: or So the documentation is aligned with the observations of the fix/workaround. -- Furthermore, there is another possible fix: journalctl seems to output many ACPI errors, probably due to the miscommunication between Linux thinking it can probe for thermal info on a device which did not register a handler to do so. The ACPI issue is a flood caused by the int3403 temp sensor library, which can be unloaded from the kernel without any other visible system effect sudo rmmod int3403_thermal is how it's unloaded A permanent fix seems to be patching the int3403 library to add something like if (sensorNotPresent) then skip or unregister until next launch -- There seems to be yet another issue related to this: power usage goes way up to around 10W at idle (instead of like 3W) and there's a kernel thread with high load (visible in powertop) related to the i915 graphics driver The solution seems to be: echo 1 > /sys/kernel/debug/dri/1/i915_hpd_short_storm_ctl That should be run on every boot to stop another interrupt flooding from happening, but this solution: it might break multi-stream transport on DisplayPort - the short storm detection is enabled by default unless multi-stream transport is supported -- Another finding: The laptop is by default running on "Silent mode" which can be disabled by: echo 1 > /sys/devices/platform/lg-laptop/fan_mode -- The laptop indeed seems to have no BIOS updates. -- Another issue seems to be that on some distros the laptop might thermal throttle to very low wattages, and the fix is: systemctl disable --now thermald -- I'm also adding to my original post a script that seems to be an elegant workaround to solve the issues observed. -- You may reply to this email to
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 PinkFromTheFuture (eduardoxfurt...@gmail.com) changed: What|Removed |Added CC||eduardoxfurt...@gmail.com --- Comment #8 from PinkFromTheFuture (eduardoxfurt...@gmail.com) --- Can confirm the issue on my LG Gram 17Z90Q-K (2022 model) running Manjaro (Arch) with Kernels: 6.4.2-3 (latest version I have available on my system) 6.1.38-1 (LTS) Happens both connected to my Thunderbolt 3 dock that also charges the computer, or to the power supply. Doesn't happen when running on battery power. Doesn't happen on my LG gram from 2021. 1. I didn't find any reports of this issue for the 2023 models. Did anyone? I believe that we need either a Linux Kernel patch or a BIOS update, but there doesn't seem to be any updates to the BIOS of the 2022 lined up of LG Gram. 2. How can we get this fixed? Who can save us!? 3. Are there any workarounds that can be programmatically applied? (In reply to eric from comment #7) > Workarounds for now: > - Blacklisting module int3403_thermal prevents the ACPI and thermal errors > messages. > - Booting with kernel parameter "acpi_mask_gpe=0x6E" prevents the high CPU > usage. I'm resistant to try it because: ``` When you specify a kernel boot parameter like acpi_mask_gpe=0x6E, you're telling the kernel to ignore or mask a specific ACPI GPE, in this case, the GPE with the address 0x6E. This can be useful in certain scenarios where a specific GPE is causing issues, like system instability or high CPU usage. By masking the GPE, you prevent the system from processing that event, which can work around the issue. However, you should only use this parameter if you are sure that the specific GPE is causing issues and you understand the implications of masking it. In some cases, it can lead to other problems, like certain hardware events not being correctly detected by the OS. ``` - Chat GPT 4 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 e...@stlo.name changed: What|Removed |Added CC||e...@stlo.name --- Comment #7 from e...@stlo.name --- Same issues with LG Gram 17Z90R-A.ADB9U1 tested with debian 6.1.0-9 and torvalds/linux.git 6.4.0-rc4. When charging via USB-C I'm getting ACPI errors messages in dmesg and noticably high CPU usage with kworker processes like others above. ACPI Error: Aborting method \_SB.PC00.LPCB.LGEC.SEN1._TMP due to previous error (AE_NOT_EXIST) (20220331/psparse-529) ACPI Error: Aborting method \_SB.PC00.LPCB.LGEC.SEN2._TMP due to previous error (AE_NOT_EXIST) (20220331/psparse-529) ACPI Error: No handler for Region [XIN1] (4f00cfe9) [UserDefinedRegion] (20220331/evregion-130) ACPI Error: Region UserDefinedRegion (ID=143) has no handler (20220331/exfldio-261) thermal thermal_zone7: failed to read out thermal zone (-5) thermal thermal_zone7: failed to read out thermal zone (-61) with thermal_zone 2,3,4,6,7 ... Workarounds for now: - Blacklisting module int3403_thermal prevents the ACPI and thermal errors messages. - Booting with kernel parameter "acpi_mask_gpe=0x6E" prevents the high CPU usage. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #6 from Víctor (victor.ballester.r...@gmail.com) --- I found a similar but different workaround. 1- Boot into your linux as always (plugged-in or not, I think it doesn't matter). 2- Immediately after logging into your desktop, suspend the laptop (I did it by closing the lid). 3- Wait for a few seconds (1 or 2) and wake it again from sleep. 4- The kworkers shouldn't appear now. It seems that this workaround prevents the kworkers from initiating during startup. Once the laptop is suspended, they are unable to appear again, for some unknown reason. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #5 from Cherrot (cherrot...@gmail.com) --- ... I have a LG Gram 16Z90Q-G.CD78C, which runs Arch Linux with kernel 6.3.3-arch1-1 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 --- Comment #4 from Cherrot (cherrot...@gmail.com) --- (In reply to Pixel from comment #2) > Rather, I have noticed the following pattern: > > 1. Plug In USB-C cable (charging/HDMI) > 2. Run "top" to verify that 3 kworker threads appear with high CPU usage. > The fan will eventually kick in > 3. Suspend the laptop (close the lid, press power button, press Fn+s, or > manually suspend) and wait for the fan to completely turn off. Optionally > unplug and plug in USB-C cable (sometimes helps). > 4. Wake device from sleep. > 5. Run "top" again, kworkers will be gone > > Now this does not work 100% of the time, as sometimes after waking from > sleep the device still keeps the kworker threads up and running, but > eventually after doing this they disappear until the next reboot. This > workaround gets the job done for me, as long as I don't have to reboot often. Thanks for sharing! This works for me too. I have In my experience the key point here seems to wait for several minutes and unplug the cable after suspending. Otherwise the 3 kworker threads will remain in `top`. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Denis (rokiden3...@gmail.com) changed: What|Removed |Added CC||rokiden3...@gmail.com -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Víctor (victor.ballester.r...@gmail.com) changed: What|Removed |Added CC||victor.ballester.ribo@gmail ||.com --- Comment #3 from Víctor (victor.ballester.r...@gmail.com) --- Hello, I am experiencing similar issues. I have the LG Gram 17-ZD90Q. I am on Archlinux-KDE and I dual-booted with windows in order to check if the problem was related to the kernel or if it was in the BIOS. Windows apparently goes well, so it is something related to linux. I tried several linux kernels but any of them worked. Right now I'm on linux-zen. One day I did something (probably update the whole packages) and the fans started to slow down as did the cpu's... That was surprising but on the next boot the problem reappeared. :( Also I cannot sleep my laptop because when I try to do it, the laptop freezes... And I think it is a problem related to the cpu's utilization too, because that time when the error disappeared magically I could sleep my laptop without any problems. I thought the error could come from the inappropriate handling of Intel gen12 in the linux kernels (6.xxx) but they are supposed to handle well the intel gen13, so that makes me doubt... As this problem is also related with the large number of acpi interrupts, some people say that you should mask (at the boot-up) the gpeXX with a high number of interrupts that you get with the command grep -r enabled /sys/firmware/acpi/interrupts But that's not a solution!!! Because, it may reduce the high cpu usage, but on the other hand, other important interrupts that should be resolved 'instantaneously' (for example, key presses) also get masked... As a result keys such as the ones for increasing the brightness or the Captial letters one did not work properly. Any kind of help is welcome!! Thank you. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Pixel (madebypixe...@proton.me) changed: What|Removed |Added CC||madebypixe...@proton.me --- Comment #2 from Pixel (madebypixe...@proton.me) --- Hello, Here is my experience. I am using an LG Gram 14Z90Q-G.AA76B and have faced high CPU usage from kworker threads on every distro I have tried (Fedora, ArchLinux, VanillaOS, Ubuntu). From my experience, there is a somewhat reliable way to temporarily stop the high CPU usage. I don't dualboot windows, so I cannot test the suggestion of booting from windows to linux. Rather, I have noticed the following pattern: 1. Plug In USB-C cable (charging/HDMI) 2. Run "top" to verify that 3 kworker threads appear with high CPU usage. The fan will eventually kick in 3. Suspend the laptop (close the lid, press power button, press Fn+s, or manually suspend) and wait for the fan to completely turn off. Optionally unplug and plug in USB-C cable (sometimes helps). 4. Wake device from sleep. 5. Run "top" again, kworkers will be gone Now this does not work 100% of the time, as sometimes after waking from sleep the device still keeps the kworker threads up and running, but eventually after doing this they disappear until the next reboot. This workaround gets the job done for me, as long as I don't have to reboot often. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Cherrot (cherrot...@gmail.com) changed: What|Removed |Added CC||cherrot...@gmail.com -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 217076] Charging causes high CPU usage on LG Gram laptops series Z90Q
https://bugzilla.kernel.org/show_bug.cgi?id=217076 Cristian Cocos (cri...@ieee.org) changed: What|Removed |Added CC||cri...@ieee.org --- Comment #1 from Cristian Cocos (cri...@ieee.org) --- My experience with Clear Linux and Ubuntu: - Setup: external monitors connected via TB4 docking station (make and model does not matter, it happens with all TB4 docks I got) to an LGGram laptop (I have two recent different models (2021 and 2022), happens on both); - Symptoms: pretty much all symptoms mentioned in the link posted above (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1987829). The most glaring symptoms are: (a) overheating--CPU temperature hovers around 90C--and (b) syslog spamming; - Palliative "cure": 1. run the `sudo rmmod int3403_thermal` command sometime after boot (~1min) either manually or automatically: this stops the kernel spamming, though it does not deal w/the overheating; 2. blacklist the int3403_thermal module fixes both issues, at the expense of very high CPU utilization(!), that renders the whole system pretty much unusable. More details: - https://community.clearlinux.org/t/execute-command-upon-reboot-systemd-timer/8484/10 - https://www.reddit.com/r/linuxhardware/comments/x97m6l/comment/j2r7irr/?utm_source=reddit_medium=web2x=3 -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
