# \[RESOLVED\] Fn lock makes both Fn+F# and F# trigger the media control keys

**URL:** <https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282>\
**Category:** Linux\
**Created:** [January 12, 2023, 2:05am UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282 "2023-01-12T02:05:10Z")\
**Posts on this page:** 14\
**Page:** 2

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**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\
**Post date:** [May 30, 2023, 4:58pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/22 "2023-05-30T16:58:01Z")

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> [@Pattrick\_Hueper](#):
>
> the frequency seems to be irregular, i cannot find what triggers this behavior, only thing to resolve it seems to be to reboot… since i usually always use Suspend/Resume this is rather inconvenient. I’d be glad for any tips how to track this further, happy to help.

Is this on 11th gen by chance?

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**Author:** ![Pattrick\_Hueper](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/pattrick_hueper/32/14991_2.png) [@Pattrick\_Hueper](https://community.frame.work/u/Pattrick_Hueper)\
**Post date:** [May 30, 2023, 5:34pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/23 "2023-05-30T17:34:00Z")

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> [@Matt\_Hartley](#):
>
> Is this on 11th gen by chance?

@Matt_Hartley no, mine is a 12th Gen, sry, i forgot to mention that, also running Ubuntu 23.04

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<div class="post-metadata">

**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\
**Post date:** [May 31, 2023, 11:43pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/24 "2023-05-31T23:43:10Z")

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Please try this and reboot, see if it surfaces again.

`echo "blacklist cros_ec_lpcs" | sudo tee -a /etc/modprobe.d/no_cros_ec.conf`

Rationale here: [[TRACKING] Fn key stops working on PopOS after a while - #43 by Chris\_Guidry](http://community.frame.work/t/tracking-fn-key-stops-working-on-popos-after-a-while/21208/43)

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<div class="post-metadata">

**Author:** ![Pattrick\_Hueper](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/pattrick_hueper/32/14991_2.png) [@Pattrick\_Hueper](https://community.frame.work/u/Pattrick_Hueper)\
**Post date:** [June 7, 2023, 10:50pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/25 "2023-06-07T22:50:38Z")

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> [@Matt\_Hartley](#):
>
> Please try this and reboot, see if it surfaces again.
> 
> `echo "blacklist cros_ec_lpcs" | sudo tee -a /etc/modprobe.d/no_cros_ec.conf`

I did as suggested… until now, the problem hasn’t happened again… I’ll update here if it does happen again 👍

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<div class="post-metadata">

**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\
**Post date:** [June 8, 2023, 1:26am UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/26 "2023-06-08T01:26:39Z")

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> [@Pattrick\_Hueper](#):
>
> I did as suggested… until now, the problem hasn’t happened again… I’ll update here if it does happen again 👍

Sounds promising! Keep us posted.

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<div class="post-metadata">

**Author:** ![Pattrick\_Hueper](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/pattrick_hueper/32/14991_2.png) [@Pattrick\_Hueper](https://community.frame.work/u/Pattrick_Hueper)\
**Post date:** [June 18, 2023, 7:54am UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/27 "2023-06-18T07:54:36Z")

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@Matt_Hartley

unfortunately, it just happened again … the Fn key is “broken” … i cannot do PgUp/PgDn/Home/End anymore, i do have Fn Lock enabled, so my Function Keys work, but i cannot use the media keys.  
I checked if the cros\_ec\_lcps module wasnt loaded… and found out that it is indeed loaded:

```auto
# lsmod | grep cros_ec_lpcs
cros_ec_lpcs 16384 0
cros_ec 20480 1 cros_ec_lpcs

```

even though i do have:

```auto
# cat /etc/modprobe.d/blacklist-cros_ec_lpcs.conf 
blacklist cros_ec_lpcs

```

strange… can anything load that module and ignore the blacklist?

Anyway… i will now rmmod it and reboot to get my Fn Key back and then make sure it is not loaded.

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<div class="post-metadata">

**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\
**Post date:** [June 20, 2023, 3:34pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/28 "2023-06-20T15:34:55Z")

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In my experience, blacklisting it as a kernel parameter is sometimes has success over using blacklist-cros\_ec\_lpcs.conf. I’d consider trying that and see if that makes a difference.

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<div class="post-metadata">

**Author:** ![devkev](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/devkev/32/12293_2.png) [@devkev](https://community.frame.work/u/devkev)\
**Post date:** [June 27, 2023, 6:30am UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/29 "2023-06-27T06:30:12Z")

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> [@Pattrick\_Hueper](#):
>
> i do have Fn Lock enabled, so my Function Keys work, but i cannot use the media keys

For me, when this problem occurs the Function Keys work as function keys regardless of Fn Lock - I never have Fn Lock on, but when the problem occurs, the keys still always operate as function keys and not media keys.

> [@Pattrick\_Hueper](#):
>
> can anything load that module and ignore the blacklist

On Ubuntu after modifying anything in `/etc/modprobe.d` you also need to run `sudo update-initramfs -u` for it to take effect at next reboot. Without this, the blocked modules might still be loaded during early boot.

> [@Pattrick\_Hueper](#):
>
> i will now rmmod it and reboot to get my Fn Key back

Note that the modules are completely cleared and reloaded during a reboot, so doing `rmmod` just before a reboot is unlikely to have any effect.

Also, in my experience, a less disruptive way to clear the problem is to suspend and then resume the laptop (ie. close the lid, wait for it to sleep, then reopen the lid). Have you tried that, and does it work for you? Or do you have to reboot to fix it?

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<div class="post-metadata">

**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\
**Post date:** [July 19, 2023, 5:50pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/30 "2023-07-19T17:50:22Z")

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Echoing devkev’s suggestion, please do report back.

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<div class="post-metadata">

**Author:** ![Loell\_Framework](https://avatars.discourse-cdn.com/v4/letter/l/9f8e36/32.png) [@Loell\_Framework](https://community.frame.work/u/Loell_Framework)\
**Post date:** [July 31, 2023, 9:56pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/31 "2023-07-31T21:56:49Z")

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> [@devkev](#):
>
> a less disruptive way to clear the problem is to suspend and then resume the laptop (ie. close the lid, wait for it to sleep, then reopen the lid). Have you tried that, and does it work for you?

Just adding on @devkev suggestion, if you find closing the lid a hassle, for the purpose of short suspend the resume, you can also just invoke

```auto
sudo systemctl suspend

```

then press any key after it has suspended.

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<div class="post-metadata">

**Author:** ![Mapleleaf](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/mapleleaf/32/10505_2.png) [@Mapleleaf](https://community.frame.work/u/Mapleleaf)\
**Post date:** [August 1, 2023, 12:20am UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/32 "2023-08-01T00:20:21Z")

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Blacklisting `cros_ec_lpcs` did the trick for me too: no more Fn keys malfunction!

---

<div class="post-metadata">

**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\
**Post date:** [August 1, 2023, 12:31am UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/33 "2023-08-01T00:31:03Z")

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For those wondering why we’re disabling cros\_ec\_lsps, it relates to this: [LKML: "Dustin L. Howett": [PATCH 0/2] platform/chrome: Add support for the Framework Laptop](https://lkml.org/lkml/2022/1/4/1160)

There were some hiccups with it though, so we have folks disabling it while it is sorted out.

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<div class="post-metadata">

**Author:** ![Lamy](https://avatars.discourse-cdn.com/v4/letter/l/bbe5ce/32.png) [@Lamy](https://community.frame.work/u/Lamy)\
**Post date:** [December 26, 2023, 2:06pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/34 "2023-12-26T14:06:47Z")

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> [@Matt\_Hartley](#):
>
> There were some hiccups with it though, so we have folks disabling it while it is sorted out.

So which bios version is it expected to be solved. I am currently on Bios 3.06 on Fedora 39.

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<div class="post-metadata">

**Author:** ![Matt\_Hartley](https://sea1.discourse-cdn.com/flex001/user_avatar/community.frame.work/matt_hartley/32/13623_2.png) [@Matt\_Hartley](https://community.frame.work/u/Matt_Hartley)\
**Post date:** [January 2, 2024, 7:12pm UTC](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282/35 "2024-01-02T19:12:35Z")

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> [@Lamy](#):
>
> So which bios version is it expected to be solved. I am currently on Bios 3.06 on Fedora 39.

> [@Mapleleaf](#):
>
> Blacklisting `cros_ec_lpcs` did the trick for me too: no more Fn keys malfunction!

Blacklist as described, it’s a kernel thing.

[Previous page](https://community.frame.work/t/resolved-fn-lock-makes-both-fn-f-and-f-trigger-the-media-control-keys/26282.md?page=1)
