Subject: Installed Debian 13.4.0 KDE Plasma on Edxis Chromebook LI9 but no audio
Good day from Singapore,
I had bought refurbished/second hand/used Edxis Chromebook model LI9 with Intel Celeron N3450 processor, 4 GB RAM, 32 GB eMMC, Windows 11 Pro and Microsoft Office Professional Plus 2013 for SGD$85 at Siglap MRT station exit 2
TEL line on 24 Mar 2026 Tuesday at about 7.15 pm in the evening.
The Edxis Chromebook has MrChromebox-2512.2 01/25/2026 UEFI firmware, which allows users to install operating systems other than ChromeOS, like Linux and Windows. At the top of the BIOS screen, it says "CTL Chromebook NL7/NL7T
(Blacktip)".
Initially I had wanted to reinstall Windows 11 Pro at 10.39 PM, but Windows 11 Pro installer says:
"This PC doesn't currently meet Windows 11 system requirements
Here's why:
The PC must support TPM 2.0."
I had no clue how the seller managed to install Windows 11 Pro on this Edxis Chromebook originally. I had wanted to reinstall Windows 11 Pro but couldn't proceed. I guess there is probably a workaround but I was lazy to find
out how.
At 11.28 PM on 24 Mar 2026 Tuesday, I had started installing Debian 13.4.0 KDE Plasma on Edxis Chromebook.
By 12.31 AM on 25 Mar 2026 Wednesday, I had finished installing Debian 13.4.0 KDE Plasma on Edxis Chromebook.
It took me about 1 hour to install Debian 13.4.0 KDE Plasma.
The reason why I buy this Edxis Chromebook is because the laptop battery could last more than 15 hours of usage without looking for an electrical power outlet to charge the laptop battery. Very very good laptop for travelling
around the world.
After installing Debian 13.4.0 KDE Plasma, I still have 18 GB of available disk space on the 32 GB eMMC. The / mount point has a total capacity of 27 GB and 6.9 GB was used by the Debian installation.
The reason why I chose Debian is because ChatGPT says Debian is the most stable Linux distro in the world (but don't have bleeding edge Linux kernel like rolling distros).
The reason why I chose KDE Plasma is because this desktop environment resembles Windows 10/11 most closely other than Cinnamon.
I had also installed Google Chrome and VLC media player. LibreOffice was installed by default.
But now I have no audio. Task bar says "No output or input devices found".
During Debian installation, under Detect network hardware stage, it says:
"Some of your hardware needs non-free firmware files to operate. The firmware can be loaded from removable media, such as a USB stick or floppy.
The missing firmware files are: intel/avs/hda-8086280a-tplg.bin
If you have such media available now, insert it, and continue.
Load missing firmware from removable media?"
I chose "No" during Debian installation.
Now I have no audio on my Edxis Chromebook LI9 with Debian 13.4.0 KDE Plasma.
Where can I find non-free firmware file intel/avs/hda-8086280a-tplg.bin?? Please advise. I also want to watch YouTube videos on my Edxis Chromebook with Debian 13.4.0 KDE Plasma.
Thank you very much.
Regards,
Mr. Turritopsis Dohrnii Teo En Ming
Extremely Democratic People's Republic of Singapore
25 Mar 2026 Wednesday 4.42 pm Singapore Time
Edxis Chromebook LI9 serial number:
LI9TFQ*****68439
Where can I find non-free firmware file
intel/avs/hda-8086280a-tplg.bin??
wrote:
Hello Turritopsis,
congratulations on choosing Debian!
You might try to install "firmware-intel-sound", it does not contain
exactly this file, but it't maybe worth a try.
See also
https://packages.debian.org/trixie/all/firmware-intel-sound/filelist
Cheers,
Christian
Am 25.03.26 um 09:42 schrieb Turritopsis Dohrnii Teo En Ming:no audio
Subject: Installed Debian 13.4.0 KDE Plasma on Edxis Chromebook LI9 but
th Intel Celeron N3450 processor, 4 GB RAM, 32 GB eMMC, Windows 11 Pro and Microsoft Office Professional Plus 2013 for SGD$85 at Siglap MRT station exGood day from Singapore,
I had bought refurbished/second hand/used Edxis Chromebook model LI9 wi
hich allows users to install operating systems other than ChromeOS, like LiTEL line on 24 Mar 2026 Tuesday at about 7.15 pm in the evening.
The Edxis Chromebook has MrChromebox-2512.2 01/25/2026 UEFI firmware, w
dows 11 Pro installer says:(Blacktip)".
Initially I had wanted to reinstall Windows 11 Pro at 10.39 PM, but Win
Edxis Chromebook originally. I had wanted to reinstall Windows 11 Pro but c ouldn't proceed. I guess there is probably a workaround but I was lazy to f"This PC doesn't currently meet Windows 11 system requirements
Here's why:
The PC must support TPM 2.0."
I had no clue how the seller managed to install Windows 11 Pro on this
4.0 KDE Plasma on Edxis Chromebook.out how.
At 11.28 PM on 24 Mar 2026 Tuesday, I had started installing Debian 13.
13.4.0 KDE Plasma on Edxis Chromebook.By 12.31 AM on 25 Mar 2026 Wednesday, I had finished installing Debian
y could last more than 15 hours of usage without looking for an electrical power outlet to charge the laptop battery. Very very good laptop for travel lingIt took me about 1 hour to install Debian 13.4.0 KDE Plasma.
The reason why I buy this Edxis Chromebook is because the laptop batter
ble disk space on the 32 GB eMMC. The / mount point has a total capacity ofaround the world.
After installing Debian 13.4.0 KDE Plasma, I still have 18 GB of availa
t stable Linux distro in the world (but don't have bleeding edge Linux kernThe reason why I chose Debian is because ChatGPT says Debian is the mos
esembles Windows 10/11 most closely other than Cinnamon.The reason why I chose KDE Plasma is because this desktop environment r
s installed by default.I had also installed Google Chrome and VLC media player. LibreOffice wa
d".But now I have no audio. Task bar says "No output or input devices foun
s:During Debian installation, under Detect network hardware stage, it say
rmware can be loaded from removable media, such as a USB stick or floppy."Some of your hardware needs non-free firmware files to operate. The fi
lasma.The missing firmware files are: intel/avs/hda-8086280a-tplg.bin
If you have such media available now, insert it, and continue.
Load missing firmware from removable media?"
I chose "No" during Debian installation.
Now I have no audio on my Edxis Chromebook LI9 with Debian 13.4.0 KDE P
?? Please advise. I also want to watch YouTube videos on my Edxis ChromebooWhere can I find non-free firmware file intel/avs/hda-8086280a-tplg.bin
Thank you very much.
Regards,
Mr. Turritopsis Dohrnii Teo En Ming
Extremely Democratic People's Republic of Singapore
25 Mar 2026 Wednesday 4.42 pm Singapore Time
Edxis Chromebook LI9 serial number:
LI9TFQ*****68439
On Wed, 25 Mar 2026 08:42:35 +0000
Turritopsis Dohrnii Teo En Ming <teo.en.ming@protonmail.com> wrote:
Hello Turritopsis,
Where can I find non-free firmware file
intel/avs/hda-8086280a-tplg.bin?? Please advise. I also want to watch >YouTube videos on my Edxis Chromebook with Debian 13.4.0 KDE Plasma.
Couldn't find 8086280 anywhere, but 80862xx exists. Thus, I think the package you need is 'firmware-intel-sound'
IDK how you manage your packages (apt, aptitude, synaptic), but you
need to enable non-free-firmware in your sources.list (if not already enabled), update your package list (if not already up to date), then
install the package 'firmware-intel-sound'.
Not sure whether that change will be picked up immediately, or logging
out and back in will be enough. A reboot may be required.
--
Regards _ "Valid sig separator is {dash}{dash}{space}"
/ ) "The blindingly obvious is never immediately apparent"
/ _)rad "Is it only me that has a working delete key?"
Loaded like a freight train flyin' like an aeroplane
Nightrain - Guns 'N' Roses
On Wed, 25 Mar 2026 08:42:35 +0000in
Turritopsis Dohrnii Teo En Ming <teo.en.ming@protonmail.com> wrote:
Where can I find non-free firmware file
intel/avs/hda-8086280a-tplg.bin??
Possibly in package firmware-intel-sound.
I say "possibly" because I did not find exactly that file name. Instead
I found:
charles@hawk:~$ apt-file search intel/avs/h
firmware-intel-sound: /usr/lib/firmware/intel/avs/hda-8086-generic-tplg.b
firmware-intel-sound: /usr/lib/firmware/intel/avs/hda-808628xx-3ep-tplg.bin
firmware-intel-sound: /usr/lib/firmware/intel/avs/hda-generic-1ep-tplg.bin
firmware-intel-sound: /usr/lib/firmware/intel/avs/hda-generic-tplg.bin charles@hawk:~$
--
Does anybody read signatures any more?
https://charlescurley.com
https://charlescurley.com/blog/
Hi,
I have tried everything suggested by ChatGPT and Google AI but
everything I have tried fails. There is still no audio on my Edxis
Chromebook model LI9 with Debian 13.4.0 KDE Plasma after trying for
more than 2 hours.
On 3/25/26 3:42 AM, Turritopsis Dohrnii Teo En Ming wrote:th Intel Celeron N3450 processor, 4 GB RAM, 32 GB eMMC, Windows 11 Pro and Microsoft Office Professional Plus 2013 for SGD$85 at Siglap MRT station ex
I had bought refurbished/second hand/used Edxis Chromebook model LI9 wi
hich allows users to install operating systems other than ChromeOS, like LiTEL line on 24 Mar 2026 Tuesday at about 7.15 pm in the evening.
The Edxis Chromebook has MrChromebox-2512.2 01/25/2026 UEFI firmware, w
e.(Blacktip)".
Looking through the MrChromebox organization on Github, it seems that
sound issues are a recurrent problem:
https://github.com/MrChromebox/firmware/issues/334
this isn't a system firmware issue, it's a complex mix of kernel/driver/alsa/dsp firmware. I'm not aware of any way to get audio working on SKL/KBL devices under Linux when using a recent kernel
This indicates that at least some permutations of device and software
are not compatible with MrChromebox. The first thing I would do is
figure out if MrChromebox is actually supported for your particular devic
https://docs.mrchromebox.tech/docs/supported-devices.html
In particular, there is this notice:
Your device's board name is what determines if it's supported or not-- not the make, model, CPU, or anything else. The only thing that
matters is the name, so use that when determining support in the table
below (or for anything else really).
You can find the board name by looking at the HWID:
The board name is listed at the bottom of both the Recovery Mode and Developer Mode screens -- it's the first part of the hardware ID (HWID),
before any spaces or hyphens.
You mention that the device you bought has a N3450 processor. That
processor is part of the Apollolake family of Intel processors. There
are some Edxis products listed as supported under the Apollolake family.
However, given the disclaimer, that alone doesn't mean that the device
you have is supported.
However, supposing it is supported, then there *might* be some helpful guidance found in the Linux Mint forums:
https://forums.linuxmint.com/viewtopic.php?p=2282933#chromebooks
If you have an Apollo Lake Chromebook (such as product name Babytiger
/ ASUS CX1500CN Chromebook), the instructions in the following Redditlolake_devices_under_linux/
post by MrChromebox has worked for a number of people HOWTO: Audio on Apollolake devices under Linux.
The reddit post:
https://www.reddit.com/r/chrultrabook/comments/uc0b6i/howto_audio_on_apol
has details, presumably from the developer of MrChromebox, that mightg-audio
get sound working, assuming that your particular board is in fact
otherwise supported by MrChromebox. There is a list of instructions in
that Reddit thread.
There is also mention in that thread of more recent tricks for getting
sound working with something called Chrultrabook. Apparently a
chrultrabook is "a modified Chromebook designed to run Windows, Linux,
or even macOS by utilizing MrChromebox coreboot firmware and custom
CoolStar drivers."
Given that you mentioned CoolStar drivers in a later reply, this area
might also be fruitful for searching for answers. There is a "fixing
audio" section of its install guide:
https://docs.chrultrabook.com/docs/installing/installing-linux.html#fixin
Which mentions a script for fixing or setting up audio.
Finally, from your more recent reply,
I have tried everything suggested by ChatGPT and Google AI buteverything I have tried fails.
This is going to complicate things considerably. Running random commands
that a stochastic parrot generated is a surefire way to mess up your
system. I strongly recommend starting from scratch if possible by first
re-installing Debian and then
1. Trying to follow the instructions about fixing audio in the aforementioned chrultrabook.com URL. If that works, great. If not,
2. Try following the instructions in the reddit thread (a cursory glance
at the python script from chrultrabook *appears* to show that it automatically tries what these instructions do during the course of its
execution, so... might not be all that helpful if the chrultrabook
script fails).
Best of luck.
--
In Solidarity,
Preston Maness
512-955-1048
https://keyoxide.org/79895B2E0F87503F1DDE80B649765D7F0DDD9BD5
On 2026-03-26, Turritopsis Dohrnii Teo En Ming <teo.en.ming@protonmail.co
wrote:
Hi,
I have tried everything suggested by ChatGPT and Google AI but
everything I have tried fails. There is still no audio on my Edxis Chromebook model LI9 with Debian 13.4.0 KDE Plasma after trying for
more than 2 hours.
inxi -A
aplay -l
lsmod | grep snd
dmesg | grep -i audio
That will let us identify:
your chipset (APL / GLK / etc.)
whether you need SOF vs AVS vs legacy
On 3/25/26 3:42 AM, Turritopsis Dohrnii Teo En Ming wrote:th Intel Celeron N3450 processor, 4 GB RAM, 32 GB eMMC, Windows 11 Pro and Microsoft Office Professional Plus 2013 for SGD$85 at Siglap MRT station ex
I had bought refurbished/second hand/used Edxis Chromebook model LI9 wi
hich allows users to install operating systems other than ChromeOS, like LiTEL line on 24 Mar 2026 Tuesday at about 7.15 pm in the evening.
The Edxis Chromebook has MrChromebox-2512.2 01/25/2026 UEFI firmware, w
e.(Blacktip)".
Looking through the MrChromebox organization on Github, it seems that
sound issues are a recurrent problem:
https://github.com/MrChromebox/firmware/issues/334
this isn't a system firmware issue, it's a complex mix of kernel/driver/alsa/dsp firmware. I'm not aware of any way to get audio working on SKL/KBL devices under Linux when using a recent kernel
This indicates that at least some permutations of device and software
are not compatible with MrChromebox. The first thing I would do is
figure out if MrChromebox is actually supported for your particular devic
https://docs.mrchromebox.tech/docs/supported-devices.html
In particular, there is this notice:
Your device's board name is what determines if it's supported or not-- not the make, model, CPU, or anything else. The only thing that
matters is the name, so use that when determining support in the table
below (or for anything else really).
You can find the board name by looking at the HWID:
The board name is listed at the bottom of both the Recovery Mode and Developer Mode screens -- it's the first part of the hardware ID (HWID),
before any spaces or hyphens.
You mention that the device you bought has a N3450 processor. That
processor is part of the Apollolake family of Intel processors. There
are some Edxis products listed as supported under the Apollolake family.
However, given the disclaimer, that alone doesn't mean that the device
you have is supported.
However, supposing it is supported, then there *might* be some helpful guidance found in the Linux Mint forums:
https://forums.linuxmint.com/viewtopic.php?p=2282933#chromebooks
If you have an Apollo Lake Chromebook (such as product name Babytiger
/ ASUS CX1500CN Chromebook), the instructions in the following Redditlolake_devices_under_linux/
post by MrChromebox has worked for a number of people HOWTO: Audio on Apollolake devices under Linux.
The reddit post:
https://www.reddit.com/r/chrultrabook/comments/uc0b6i/howto_audio_on_apol
has details, presumably from the developer of MrChromebox, that mightg-audio
get sound working, assuming that your particular board is in fact
otherwise supported by MrChromebox. There is a list of instructions in
that Reddit thread.
There is also mention in that thread of more recent tricks for getting
sound working with something called Chrultrabook. Apparently a
chrultrabook is "a modified Chromebook designed to run Windows, Linux,
or even macOS by utilizing MrChromebox coreboot firmware and custom
CoolStar drivers."
Given that you mentioned CoolStar drivers in a later reply, this area
might also be fruitful for searching for answers. There is a "fixing
audio" section of its install guide:
https://docs.chrultrabook.com/docs/installing/installing-linux.html#fixin
Which mentions a script for fixing or setting up audio.
Finally, from your more recent reply,
I have tried everything suggested by ChatGPT and Google AI buteverything I have tried fails.
This is going to complicate things considerably. Running random commands
that a stochastic parrot generated is a surefire way to mess up your
system. I strongly recommend starting from scratch if possible by first
re-installing Debian and then
1. Trying to follow the instructions about fixing audio in the aforementioned chrultrabook.com URL. If that works, great. If not,
2. Try following the instructions in the reddit thread (a cursory glance
at the python script from chrultrabook *appears* to show that it automatically tries what these instructions do during the course of its
execution, so... might not be all that helpful if the chrultrabook
script fails).
Best of luck.
--
In Solidarity,
Preston Maness
512-955-1048
https://keyoxide.org/79895B2E0F87503F1DDE80B649765D7F0DDD9BD5
Right now I am thinking of buying a super cheap USB Audio (Digital) speakers without any 3.5 mm audio jack (USB Type A). I will also probably buy a cheap USB Type A to USB Type C converter for SGD$3.
Turritopsis Dohrnii Teo En Ming wrote:akers without any 3.5 mm audio jack (USB Type A). I will also probably buy
Right now I am thinking of buying a super cheap USB Audio (Digital) spe
Apple's USB C to 3.5mm DAC costs $9 in the US. It's very high
quality sound, and can accomodate headphones, a headset with
wires, or speakers that take 3.5mm stereo connectors.
Debian supports it very well through the standard USB Audio
driver.
Physically, the short cable is a little flimsy.
-dsr-
On Thursday, 26 March 2026 at 11:54 PM, Dan Ritter <dsr@randomstring.org>wrote:
peakers without any 3.5 mm audio jack (USB Type A). I will also probably buTurritopsis Dohrnii Teo En Ming wrote:
Right now I am thinking of buying a super cheap USB Audio (Digital) s
Apple's USB C to 3.5mm DAC costs $9 in the US. It's very high
quality sound, and can accomodate headphones, a headset with
wires, or speakers that take 3.5mm stereo connectors.
Debian supports it very well through the standard USB Audio
driver.
Physically, the short cable is a little flimsy.
-dsr-
I have bought the Logitech S150 USB Speakers without any 3.5 mm audio jack today for SGD$19.
Let's see how it turns out.
Regards,
Mr. Turritopsis Dohrnii Teo En Ming
Extremely Democratic People's Republic of Singapore
27 Mar 2026 Friday 1.39 pm Singapore Time
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