Hi Hans,

On Thu, 18 Jul 2024 at 11:28, Hans de Goede <hdego...@redhat.com> wrote:

> Hi,
>
> On 7/16/24 5:59 PM, Iñaki Ucar wrote:
> >
> >
> > On Tue, 16 Jul 2024 at 12:29, Hans de Goede <hdego...@redhat.com
> <mailto:hdego...@redhat.com>> wrote:
> >
> >     Hi,
> >
> >     On 7/15/24 9:50 PM, Iñaki Ucar wrote:
> >     > It's the kernel. Going back to 6.9.6 fixes the issue...
> >
> >     Ok, that is a good first step in debugging this.
> >
> >     Can you run evtest with the working kernel and then check which
> >     event node is generating key-presses for the brightness keys,
> >     that should help narrow it down further.
> >
> >     Likely candidates are: "LG WMI hotkeys",
> >     "AT translated set 2 keyboard", "Video Bus".
> >
> >
> > In "Video Bus", there are KEY_BRIGHTNESSDOWN and KEY_BRIGHTNESSUP that
> are triggered.
>
> Ok, then this likely is not an issue with the lg-laptop driver but rather
> with
> the ACPI subsystem.
>
> Likely culprit commits which are new in 6.9.7 are:
>
>
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/acpi?h=v6.9.7&id=2b2b0ac1533d790690d6d28899f01a2924d54d4d
>
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/acpi?h=v6.9.7&id=9750135f2f326879889ed60ccd68b96572dfa6ee
>
>
> Or maybe:
>
>
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/acpi?h=v6.9.7&id=e21a4c9129c72fa54dd00f5ebf71219b41d43c04
>
> But I suspect it is one of the above 2.
>
> I have started a 6.9.9 test-build with those 2 patches reverted:
>
> https://koji.fedoraproject.org/koji/taskinfo?taskID=120674294


Good catch! I confirm that the build above does not have the issues I was
experiencing.

Iñaki


> this will take a couple of hours to finish building. Here are some generic
> instructions
> for installing a kernel from koji (the Fedora build system):
>
> https://fedorapeople.org/~jwrdegoede/kernel-test-instructions.txt
>
> Please give this kernel build a try when it is done building and then
> we will see from there.
>
> Regards,
>
> Hans
>
>
>
>
> >     But if none of those 3 reports brightness key presses, please
> >     try all available /dev/input/event# nodes and please report back
> >     here the name(e.g. "LG WMI hotkeys") of the /dev/input/event# node
> >     which is reporting the brightness key presses.
> >
> >     Also which kernel version is the first broken kernel version
> >     for you ?
> >
> >
> > 6.9.7 to 6.9.9 are broken. I also noticed issues
> with /sys/devices/platform/lg-laptop/battery_care_limit, that reports 0 and
> cannot be set with those kernels.
> >
> > There are commits in the lg-laptop.c file in the 6.10 series that I hope
> solve these issues, see
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/platform/x86/lg-laptop.c?id=v6.10&id2=v6.9
> <
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/diff/drivers/platform/x86/lg-laptop.c?id=v6.10&id2=v6.9
> >
> >
> > Iñaki
> >
> >
> >
> >
> >     Regards,
> >
> >     Hans
> >
> >
> >
> >
> >
> >     >
> >     > Iñaki
> >     >
> >     > On Mon, 15 Jul 2024 at 21:34, Iñaki Ucar <iu...@fedoraproject.org
> <mailto:iu...@fedoraproject.org> <mailto:iu...@fedoraproject.org <mailto:
> iu...@fedoraproject.org>>> wrote:
> >     >
> >     >
> >     >
> >     >     On Mon, 15 Jul 2024 at 18:53, Jonathan Wright via devel <
> devel@lists.fedoraproject.org <mailto:devel@lists.fedoraproject.org>
> <mailto:devel@lists.fedoraproject.org <mailto:
> devel@lists.fedoraproject.org>>> wrote:
> >     >
> >     >         Are you running KDE with HDR enabled by chance?  That will
> make the keys non-functional.
> >     >
> >     >
> >     >     No, I don't think so. I don't see any HDR option anyways.
> >     >
> >     >     Iñaki
> >     >
> >     >
> >     >
> >     >         On Mon, Jul 15, 2024 at 3:52 AM Samuel Sieb <
> sam...@sieb.net <mailto:sam...@sieb.net> <mailto:sam...@sieb.net <mailto:
> sam...@sieb.net>>> wrote:
> >     >
> >     >             On 7/15/24 1:47 AM, Iñaki Ucar wrote:
> >     >             > On Mon, 15 Jul 2024 at 10:34, Samuel Sieb <
> sam...@sieb.net <mailto:sam...@sieb.net> <mailto:sam...@sieb.net <mailto:
> sam...@sieb.net>>
> >     >             > <mailto:sam...@sieb.net <mailto:sam...@sieb.net>
> <mailto:sam...@sieb.net <mailto:sam...@sieb.net>>>> wrote:
> >     >             >
> >     >             >     On 7/15/24 1:23 AM, Iñaki Ucar wrote:
> >     >             >      >
> >     >             >      >
> >     >             >      > On Mon, 15 Jul 2024 at 09:56, Samuel Sieb <
> sam...@sieb.net <mailto:sam...@sieb.net> <mailto:sam...@sieb.net <mailto:
> sam...@sieb.net>>
> >     >             >     <mailto:sam...@sieb.net <mailto:sam...@sieb.net>
> <mailto:sam...@sieb.net <mailto:sam...@sieb.net>>>
> >     >             >      > <mailto:sam...@sieb.net <mailto:
> sam...@sieb.net> <mailto:sam...@sieb.net <mailto:sam...@sieb.net>>
> <mailto:sam...@sieb.net <mailto:sam...@sieb.net> <mailto:sam...@sieb.net
> <mailto:sam...@sieb.net>>>>> wrote:
> >     >             >      >     You will need to find out what the keys
> trigger.
> >     >             >      >     Do you see any messages in the journal
> when you press the keys?
> >     >             >      >
> >     >             >      >
> >     >             >      > Nothing in the journal.
> >     >             >      >
> >     >             >      >     Install "evtest" and try watching various
> sources to see if
> >     >             >     you get a
> >     >             >      >     reaction when pressing the keys.
> >     >             >      >
> >     >             >      >
> >     >             >      > Nothing either. I tried monitoring the
> keyboard as well as the
> >     >             >     event fd
> >     >             >      > called "LG WMI hotkeys", and those keys
> trigger nothing. :( Does
> >     >             >     this
> >     >             >      > mean that it's a kernel issue?
> >     >             >
> >     >             >     Probably.  Do you have the "lg-laptop" kernel
> module loaded?
> >     >             >
> >     >             > I do:
> >     >             > $ lsmod | grep lg
> >     >             > lg_laptop              32768  0
> >     >             > sparse_keymap          12288  1 lg_laptop
> >     >             > i2c_algo_bit           20480  2 xe,i915
> >     >             > wmi                    36864  3
> video,lg_laptop,wmi_bmof
> >     >
> >     >             I suggest you contact the mailing list at:
> >     >             platform-driver-...@vger.kernel.org <mailto:
> platform-driver-...@vger.kernel.org> <mailto:
> platform-driver-...@vger.kernel.org <mailto:
> platform-driver-...@vger.kernel.org>>
> >     >
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> >     >
> >     >         --
> >     >         Jonathan Wright
> >     >         AlmaLinux Foundation
> >     >         Mattermost: chat <
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> >     >
> >     >
> >     >
> >     >     --
> >     >     Iñaki Úcar
> >     >
> >     >
> >     >
> >     > --
> >     > Iñaki Úcar
> >     >
> >
> >
> >
> > --
> > Iñaki Úcar
>
>

-- 
Iñaki Úcar
-- 
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