Linux kernel 6.16+ breaks suspend to memory

[T0mK0]

When intel-ipu6-psys module is loaded suspend( s2idle) does not work.
It just freezes to black screen with no errors on the console and only sysrq or reboot gets out of this state.
Drivers are loaded/compiled with dkms , latest version pulled.
Removing the modules with:
dkms remove ipu6-drivers/0.0.0 --force -k 6.16.X
makes suspend to work again.

Hardware :
Operating System: Arch Linux
Kernel Version: 6.16.4-zen1-1-zen (64-bit)
Processors: 20 × 13th Gen Intel® Core™ i7-13800H
Memory: 32 GiB of RAM (30.9 GiB usable)
Graphics Processor: Intel® Iris® Xe Graphics
Manufacturer: Dell Inc.
Product Name: Precision 5680

Tested on mainline kernels from 6.16rc ( 16.0 16.1. 16.2. 16.3 16.4 ) series to 6.17rc ( rc1 rc2 ) series and all present the same behavior.

6.15.X and lower work fine.

[twouters]

I suppose this is a dupe of #372

[T0mK0]

The camera works ( before the first attempt to suspend ), intel-ipu6-psys is NOT crashing for me.
The only thing that is broken for me is the suspend to ram.
I don't think it has anything to do with #372 , seems to be different problem, IMHO.

[twouters]

Oh, OK. I noticed a failing suspend and freezes when rebooting before I blacklisted intel-ipu6-psys so I mistook it as the same issue.

[croci]

Same issue here.

[twouters]

just wondering: does "the camera works" mean that you're able to use it with the gstreamer icamera stuff and binary blobs from https://github.com/intel/ipu6-camera-bins (probably in combination with v4l2-relayd) or do you use the mainline implementation with pipewire in your browser and/or qcam?

The latter currently "works" for me (Dell XPS 9315) but the image quality is inferior to the former, which no longer works since 6.16 because psys module fails to load properly.

[T0mK0]

"Works" for me with pipewire and qcam. Quality is bad though.
Never got it working with gstreamer.
For any practical purposes the camera is useless.

I don't know for sure since when for sure , but in 6.16.5 mainline the camera "works" ( pipewire ) with in-tree module ( ov02c10 for me ) .
The problem now is that the image is upside down, so I've lost any hopes in getting it usable beyond experiments.

lsmod | ag ipu

intel_ipu6_isys       114688  6
videobuf2_dma_sg       12288  1 intel_ipu6_isys
intel_ipu6             61440  9 intel_ipu6_isys
videobuf2_v4l2         32768  2 intel_ipu6_isys,uvcvideo
videobuf2_common       65536  6 videobuf2_vmalloc,videobuf2_v4l2,intel_ipu6_isys,uvcvideo,videobuf2_dma_sg,videobuf2_memops
ipu_bridge             20480  3 intel_ipu6,ivsc_csi,intel_ipu6_isys
v4l2_fwnode            32768  8 ov02c10,ivsc_csi,intel_ipu6_isys
v4l2_async             24576  4 v4l2_fwnode,ov02c10,ivsc_csi,intel_ipu6_isys
videodev              274432  17 v4l2_async,v4l2_fwnode,videobuf2_v4l2,ov02c10,ivsc_csi,intel_ipu6_isys,uvcvideo
mc                     69632  13 v4l2_async,videodev,snd_usb_audio,videobuf2_v4l2,ov02c10,ivsc_csi,intel_ipu6_isys,uvcvideo,videobuf2_common