IPU6 camera support in Fedora 41

[hansdegoede]

I'm happy to announce that the last tweaks have landed and that the fully FOSS libcamera software ISP based IPU6 camera support in Fedora 41 now has no known bugs left. See the Changes page for testing instructions.

Supported hardware

Unlike USB UVC cameras where all cameras work with a single kernel driver, MIPI cameras like the Intel IPU6 cameras require multiple drivers. The IPU6 input-system CSI receiver driver is common to all laptops with an IPU6 camera, but different laptops use different camera sensors and each sensor needs its own driver and then there are glue ICs like the LJCA USB IO-expander and the iVSC (Intel Visual Sensing Controller) and there also is the ipu-bridge code which translates Windows oriented ACPI tables with sensor info into the fwnodes which the Linux drivers expect.

This means that even though IPU6 support has landed in Fedora 41 not all laptops with an IPU6 camera will work. Currently the IPU6 integrated in the following CPU models works if the sensor + glue hw/sw is also supported:

• Tiger Lake
• Alder Lake
• Raptor Lake

Jasper Lake and Meteor Lake also have an IPU6 but there is some more integration work necessary to get things to work there. Getting Meteor Lake IPU6 cameras to work is high on my TODO list.

The mainline kernel IPU6 CSI receiver + libcamera software ISP has been successfully tested on the following models:

• Various Lenovo ThinkPad models with ov2740 (INT3474) sensor (1)
• Various Dell models with ov01a10 (OVTI01A0) sensor
• Dell XPS 13 PLus with ov13b10 (OVTIDB10/OVTI13B1)
• Some HP laptops with hi556 sensor (INT3537)

To see which sensor your laptop has run: "ls /sys/bus/i2c/devices" this will show e.g. "i2c-INT3474:00" if you have an ov2740, with INT3474 being the ACPI Hardware ID (HID) for the sensor. See here for a list of currently known HID to sensor mappings. Note not all of these have upstream drivers yet. In that cases chances are that there might be a sensor driver for your sensor here.

We could really use help with people submitting drivers from there upstream. So if you have a laptop with a sensor which is not in the mainline but is available there, you know a bit of C-programming and you are willing to help, then please drop me an email so that we can work together to get the driver upstream.

1) on some ThinkPads the ov2740 sensor fails to start streaming most of the time. I plan to look into this next week and hopefully I can come up with a fix.

MIPI camera Integration work done for Fedora 41

After landing the kernel IPU6 CSI receiver and libcamera software ISP support upstream early in the Fedora 41 cycle, there still was a lot of work to do with regards to integrating this into the rest of the stack so that the cameras can actually be used outside of the qcam test app.

The whole stack looks like this "kernel → libcamera → pipewire | pipewire-camera-consuming-app". Where the 2 currently supported pipewire-camera consuming apps are Firefox and GNOME Snapshot.

Once this was all up and running testing found quite a few bugs which have all been fixed now:

• Firefox showing 13 different cameras in its camera selection pulldown for a single IPU6 camera (fix).
• Installing pipewire-plugin-libcamera leads to UVC cameras being powered on all the time causing significant battery drain (bug, bug, discussion, fix).
• Pipewire does not always recognizes cameras on login (bug, bug, bug, fix).
• Pipewire fails to show cameras with relative controls (fix).
• spa_libcamera_buffer_recycle sometimes fails, causing stream to freeze on first frame (bug, fix)
• Firefox chooses bad default resolution of 640x480. I worked with Jan Grulich to get this fixed and this is fixed as of firefox-130.0.1-3.fc41. Thank you Jan!
• Snapshot prefers 4:3 mode, e.g. 1280x1080 on 16:9 camera sensors capable of 1920x1080 (pending fix)
• Added intel-vsc-firmware, pipewire-plugin-libcamera, libcamera-ipa to the Fedora 41 Workstation default package-set (pull, pull, pull)

Comments

Testing on Fedora 40

[oez]

Thx for all this great work! Just tested on my current everyday working Fedora 40 install and now I see dmesg telling me "intel-ipu6 0000:00:05.0: Found supported sensor INT3474:01" and GNOME snapshot is showing my face.

These are good signs.

For firefox-131.0-2.fc40.x86_64, I've this bug showing 13 different cameras. I noticed that I may not have an up-to-date pipewire (pipewire-1.0.8-1.fc40.x86_64). So I will wait for Fedora 41, which is not a big deal (at least for me ;-)). Again, thx a lot Hans !

Olivier.

[cachapa]

Thanks for your work Hans!

I've been trying to make the camera work on my Dell XPS 13 9340 developer edition but so far with no success.

I know there are Linux drivers because the camera does work out of the box in Ubuntu 22 the laptop shipped with but unfortunately even upgrading the official distro stops it from working.

ls /sys/bus/i2c/devices shows me i2c-HIMX1092:00 which I do not see in either supported hardware you linked, that might be the reason for my troubles.

[hansdegoede]

Cachapa, the i2c-HIMX1092:00 device is an infrared sensor there also should be a second normal sensor. The normal sensor not being visible typically is caused by something being amiss with the Intel VSC driver which needs to probe the iVSC chip successfully before the main sensor will show up.

Please drop me an email at hdegoede@redhat.com then we can debug this further over email and hopefully get your system to work.

[kevinpease]

Was there a resolution to this? I am experiencing the same issue with this same model.

Thanks!

Getting camera working on HP Spectre x360 2-in-1 Laptop 16t-aa000 (Meteor Lake - Debian Sid/Trixie)

[duane_kaufman]

I too wish to thank you for your work Hans!

My C/Linux skills are probably not up to the task of making my camera work, but I am willing to try (certainly willing to test!)

My particular situation may be hampered by the fact that this laptop has an electro-mechanical shutter, which shows up as "wmi PNP0C14:04 00000080 00000000" using acpi_listen, and is toggled by the F2 key (which works under linux, I can see/hear the shutter open and close).

I filed a bug with libcamera ([Bug 237] IPU6 Camera with ov08x40 (OVTI08F4 sensor) HP Spectre 16" Meteor Lake doesn't work), and Laurent Pinchart there suggested I send a report to linux-media@vger.kernel.org (which I did)

The output of sudo ls -l /sys/bus/i2c/devices:
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-0 -> ../../../devices/pci0000:00/0000:00:1f.4/i2c-0
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-1 -> ../../../devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-10 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-10
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-11 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-11
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-12 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-12
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-13 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-13
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-14 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-14
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-15 -> ../../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/i2c-15
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-16 -> ../../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-1/i2c-16
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-17 -> ../../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-2/i2c-17
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-18 -> ../../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-3/i2c-18
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-19 -> ../../../devices/pci0000:00/0000:00:02.0/drm/card0/card0-DP-4/i2c-19
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-2 -> ../../../devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2
lrwxrwxrwx 1 root root 0 Oct 16 19:19 i2c-20 -> ../../../devices/pci0000:00/0000:00:1c.0/0000:56:00.0/i2c-20
lrwxrwxrwx 1 root root 0 Oct 16 19:19 i2c-21 -> ../../../devices/pci0000:00/0000:00:1c.0/0000:56:00.0/i2c-21
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-3 -> ../../../devices/pci0000:00/0000:00:15.3/i2c_designware.2/i2c-3
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-4 -> ../../../devices/pci0000:00/0000:00:19.0/i2c_designware.3/i2c-4
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-5 -> ../../../devices/pci0000:00/0000:00:19.1/i2c_designware.4/i2c-5
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-6 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-6
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-7 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-7
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-8 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-8
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-9 -> ../../../devices/pci0000:00/0000:00:02.0/i2c-9
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-CSC3551:00-cs35l41-hda.0 -> ../../../devices/pci0000:00/0000:00:19.1/i2c_designware.4/i2c-5/i2c-CSC3551:00-cs35l41-hda.0
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-CSC3551:00-cs35l41-hda.1 -> ../../../devices/pci0000:00/0000:00:19.1/i2c_designware.4/i2c-5/i2c-CSC3551:00-cs35l41-hda.1
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-ELAN07CE:00 -> ../../../devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-ELAN07CE:00
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-ELAN2513:00 -> ../../../devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-ELAN2513:00
lrwxrwxrwx 1 root root 0 Oct 16 19:19 i2c-OVTI00AB:00 -> ../../../devices/pci0000:00/0000:00:15.3/i2c_designware.2/i2c-3/i2c-OVTI00AB:00
lrwxrwxrwx 1 root root 0 Oct 16 18:42 i2c-OVTI08F4:00 -> ../../../devices/pci0000:00/0000:00:19.0/i2c_designware.3/i2c-4/i2c-OVTI08F4:00
lrwxrwxrwx 1 root root 0 Oct 16 19:19 i2c-TXNW3643:00 -> ../../../devices/pci0000:00/0000:00:15.3/i2c_designware.2/i2c-3/i2c-TXNW3643:00

Please let me know what testing or whatnot I can do.

Sincerely,
Duane

Re: Getting camera working on HP Spectre x360 2-in-1 Laptop 16t-aa000 (Meteor Lake - Debian Sid/Trix

[hansdegoede]

Hi Duane,

I'm currently work with a Fedora 41 user who has a HP Spectre x360 14-eu0xxx which is similar to your model to get things working there.

So far we have failed to get things to work. I have one more thing which I want to try and then I'm going to give up.

I plan to do semi-regular blog-posts with IPU camera support updates. I plan to include something on the success / failure to get the OVTI08F4 / ov08x40 sensor to work in my first update. So I suggest you keep an eye on my blog for further updates.

Note even if I can get the HP Spectre x360 14-eu0xxx to work in Fedora 41, there likely still is a bunch of work to do on the Debian side to enable everything.

Re: Getting camera working on HP Spectre x360 2-in-1 Laptop 16t-aa000 (Meteor Lake - Debian Sid/Trix

[duane_kaufman]

Dear Hans,
I believe I have read up on the HP Spectre 14 user.

Again, I am not expecting anything but to learn the process and tools that is employed in getting something like this running.

Sincerely,
Duane

Sad faces with Dell XPS 16 9640

[winscap]

Hi Hans,
Thank you for your work on these cameras. I was looking forward to the release of Fedora 41 after seeing all the posts concerning the IPU6 webcams, hoping to finally use the webcam of my work laptop. But alas, again no werking camera.

I installed a fresh copy of Fedora 41
Checked if all packages are up to date
Checked dmesg and cam -l

[ 23.594593] intel-ipu6 0000:00:05.0: Found supported sensor OVTI02C1:00
[ 23.594666] intel-ipu6 0000:00:05.0: Connected 1 cameras
[ 23.595768] intel-ipu6 0000:00:05.0: Sending BOOT_LOAD to CSE
[ 23.632158] intel-ipu6 0000:00:05.0: Sending AUTHENTICATE_RUN to CSE
[ 23.678498] intel-ipu6 0000:00:05.0: CSE authenticate_run done
[ 23.678506] intel-ipu6 0000:00:05.0: IPU6-v4[7d19] hardware version 6
evert-jelle@2a10-3781-2b7c:~$ sudo cam -l
[0:18:38.662568793] [8127] INFO Camera camera_manager.cpp:325 libcamera v0.3.2
[0:18:38.680902489] [8130] INFO SimplePipeline simple.cpp:1548 No sensor found for /dev/media0
Available cameras:
evert-jelle@2a10-3781-2b7c:~$

Sad to see my laptop has a non supported sensor. Anything I can do to help getting this sensor supported as well? v4l2-ctl --all does see the camera, but I can't get no satisfaction (camera output).

Re: Sad faces with Dell XPS 16 9640

[mistapony]

Have you had any luck with the Dell XPS 16 webcam yet?

Re: Sad faces with Dell XPS 16 9640

[hansdegoede]

The Dell XPS 16 9640 laptop needs a driver for the OV02C10 sensor which is not upstream yet.

Work is ongoing to get this sensor driver upstream see:
https://lore.kernel.org/linux-media/20241120015726.778892-1-heimir.sverrisson@gmail.com/

Re: Sad faces with Dell XPS 16 9640

[mistapony]

Thank you for the update, looking forward to that getting pushed in!

Re: Sad faces with Dell XPS 16 9640

[mistapony]

How long do these type of changes take to get pushed to upstream?

Status on IPU6 with sensor OVTI08F4:00

[nagmat84]

What is the progress on the OVTI08F4:00 sensor?

We have an Lenovo X1 Carbon 12th Gen with Meteor Lake and an IPU6 camera with the OVTI08F4:00 sensor. The kernel version is 6.12.1 and the kernel reports

intel-ipu6 0000:00:05.0: enabling device (0000 -> 0002)
intel-ipu6 0000:00:05.0: IPU6 in secure mode touch 0x80000000 mask 0x0
intel-ipu6 0000:00:05.0: FW version: 20230925
intel-ipu6 0000:00:05.0: Found supported sensor OVTI08F4:00
intel-ipu6 0000:00:05.0: Connected 1 cameras
intel-ipu6 0000:00:05.0: Sending BOOT_LOAD to CSE
intel-ipu6 0000:00:05.0: Sending AUTHENTICATE_RUN to CSE
intel-ipu6 0000:00:05.0: CSE authenticate_run done
intel-ipu6 0000:00:05.0: IPU6-v4[7d19] hardware version 6

However, no user-land application (Kamoso, Zoom, etc.) is able to grab a video.

Re: Status on IPU6 with sensor OVTI08F4:00

[hansdegoede]

Unfortunately IPU6 support on the Lenovo X1 Carbon 12th Gen needs more work. The Lenovo X1 Carbon 12th Gen uses a new IO expander and at a minimum it needs these drivers: https://github.com/intel/usbio-drivers to be mainlined for things to work.

Re: Status on IPU6 with sensor OVTI08F4:00

[nagmat84]

Assume that I compile the new USB IO expander outside the mainline kernel as a custom module, is there anything else missing?

Re: Status on IPU6 with sensor OVTI08F4:00

[hansdegoede]

I'm afraid that it is not that simple, there also is a bunch of integration work needed and the OV8x40 sensor driver likely also needs some work.

I hope to get access to a Meteor Lake based X1 Carbon myself soonish and then I'll take a look and see what exactly is necessary.

Re: Status on IPU6 with sensor OVTI08F4:00

[nagmat84]

That's a pity to hear. Lenovo actually sells this laptop with Linux Fedora 41 pre-installed and according to the handbook, ch. 2 (p. 11) the Gnome application Cheese is able to use the camera. Hence, I assumed that it would simply work out-of-the-box.

Re: Status on IPU6 with sensor OVTI08F4:00

[mluessi]

I have a thinkpad X1 2-in-1 with the OVTI08F4:00 sensor that isn't working yet. I'm an embedded SW/HW developer and would be happy to help with debugging etc. Let me know if there is anything I can help with to get this working.

Edit: I looked into this more and added my findings to the github issue

Re: Status on IPU6 with sensor OVTI08F4:00

[nagmat84]

Hi Hans,
while the MIPI sensor OVTI08F4:00 should be supported theoretically, the Lenovo X1 Carbon 12th gen had the additional problem of the new Lattice USB IO expander. Since this January, Lenovo started to sell the X1 Caebon 12th gen with pre-installed Ubuntu and the MIPI camera. Does this mean that the issues with the Lattice USB IO expander have been solved?
Thanks

OVTI8856:00 for Dell 7320 Detachable not working

[stebi85]

Hi Hans,
we've been in contact via email before regarding same matter. I've sent you my dmesg41 output. Not sure if you were able to figure the culprit?

What I noticed reading this blog post carefully, is that there seems to not be a correct ACPI HID mapping to my sensor. If I check ls /sys/bus/i2c/devices following entry comes up: i2c-INT3472:07
For the OVTI8856:00 the code should already be mainlined if I check here: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/pci/intel/ipu-bridge.c#n49

Help me, what to do next. Thanks Stefan