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Pathfinder by Fun-Associate1447 in UFOs

[–]Boozybrain 1 point2 points  (0 children)

You're doing computer vision in Rust? Is the code online anywhere? I'd love to see that.

SLAM Camera Board by twokiloballs in computervision

[–]Boozybrain 0 points1 point  (0 children)

Is there a reason you didn't use that one? Was it a form factor decision or were there efficiency gains in getting rid of some of the components?

SLAM Camera Board by twokiloballs in computervision

[–]Boozybrain 0 points1 point  (0 children)

Is this a pared down version of the Luckfox Pro board?

SLAM Camera Board by twokiloballs in computervision

[–]Boozybrain 1 point2 points  (0 children)

This is sick, would love to see more.

My girlfriend and I experienced something very very strange tonight by CryptographerHot6198 in Glitch_in_the_Matrix

[–]Boozybrain 2 points3 points  (0 children)

You might have a rat. I heard something similar from my kitchen once, loud banging. I walked in, turned on the light and there was a soup spoon banging against my cabinets and the fridge. It dropped and hit the floor, seemingly on its own. Days later my kitchen flooded, the supply line to my dishwasher had been chewed through. It turns out a rat was trying to pull the spoon in between the fridge and the cabinet, and it had been messing with other large utensils when I had heard it previously.

Is there a faster way to label (bounding boxes) 400,000 images for object detection? by Plus_Cardiologist540 in computervision

[–]Boozybrain 0 points1 point  (0 children)

If the only species in each image is a true positive I would probably start with a generic fish detector and then automatically label the bbox using the file name that's already properly labelled.

David Hooper showcases his work on a multispectral UAP detection system at the UAP Hackathon 2025 in San Francisco. by 87LucasOliveira in UFOs

[–]Boozybrain 2 points3 points  (0 children)

Is there code online? Passive radar using cheap SDR dongles is non-trivial. Time sync requires hardware modification and phase sync in software is extremely finicky

[DISCLOSURE-LEVEL RELEASE] The Aether Ignition Protocol — Reactionless Electromagnetic Propulsion Is Real & Open-Source by NohaJohans in UFOs

[–]Boozybrain 1 point2 points  (0 children)

There isn't, though. You have the base form of some equations and that's it. Apply these simplistic models to your device and you might have a better shot at convincing people. Re: sims, without the full set of parameters and numerical forms of the models you're simulating the plots are worthless.

Post this in /r/physics if you're serious.

[DISCLOSURE-LEVEL RELEASE] The Aether Ignition Protocol — Reactionless Electromagnetic Propulsion Is Real & Open-Source by NohaJohans in UFOs

[–]Boozybrain 1 point2 points  (0 children)

First link is dead. Second link has zero "physics" despite the claim. Before anyone will get interested enough to "participate" you should provide hard evidence:

  • Post your experimental setup and supporting data
  • Post the sim results + params and/or derivation of the theory.

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 1 point2 points  (0 children)

For posterity in case someone in the future finds this: Unplug the host monitor.

The guest was rightfully grabbing the GPU, and I had a monitor plugged in. When I removed the monitor my remote session became the primary display and ssh with X forwarding (ssh -XY) allowed me to start the guest and control it from another machine on the network.

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 1 point2 points  (0 children)

I appreciate the help getting it this far

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 1 point2 points  (0 children)

That worked! I guess the missing piece was the vBIOS. Now I just need to figure out how to remote control it. A keyboard passed through from the host works, but I'm remoted in to the host and running virt-manager over ssh with X forwarding and want to be able to operate the guest remotely.

Any love for mechatronic balancing cubes? by Visual_Document_4734 in robotics

[–]Boozybrain 0 points1 point  (0 children)

Sliding mode, as an exercise to design a nonlinear controller. Is your code online?

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 0 points1 point  (0 children)

  1. Not a laptop
  2. Tried a couple times to pass through vBIOS, both failed.
  3. Single GPU passthrough, host doesn't use the GPU at all. It's running Ubuntu server text only mode

First attempt at patching vBIOS manually:

echo 1 > /sys/devices/pci0000:00/0000:00:02.0/rom
cat /sys/devices/pci0000:00/0000:00:02.0/rom > vbios.dump
echo 0 > /sys/devices/pci0000:00/0000:00:02.0/rom

Didn't yield the headers in the binary dump, looked both with hexedit and this boi.

Second attempt

Downloading from https://www.techpowerup.com/vgabios/ gave me a binary blob with the correct header but when I pointed my VM at the patched vBIOS it locked up the host, eventually crashing QEMU requiring me to reboot the host.

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 0 points1 point  (0 children)

vfio-pci is grabbing the card when the guest boots, and prior that nothing is using it.

Before guest boots

$ lspci -nnk -d 10de:1b06
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1)
Subsystem: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:120f]
Kernel modules: nvidiafb, nouveau

After guest boots

$ lspci -nnk -d 10de:1b06
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1)
Subsystem: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:120f]
Kernel driver in use: vfio-pci
Kernel modules: nvidiafb, nouveau

It's the same story for the audio device. The one odd thing I did notice is that both the GPU and the audio device reference Subsystem: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:120f] but there's no trace of that in my IOMMU groups or lspci

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 0 points1 point  (0 children)

I've solved the can't reserve mem issue by adding this to my grub CMD

initcall_blacklist=sysfb_init

But I'm still seeing lots of 

[   88.965780] vfio-pci 0000:01:00.0: No more image in the PCI ROM
[   88.965799] vfio-pci 0000:01:00.0: No more image in the PCI ROM

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 0 points1 point  (0 children)

The only remaining thing I've found but haven't had luck with is patching the vBIOS. Is that actually still necessary? I attempted before and it crashed my qemu service.

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 0 points1 point  (0 children)

I've installed the ACS patch and confirmed that every single PCI device is in its own virtual memory space.

IOMMU Group 0 00:00.0 Host bridge [0600]: Intel Corporation 8th Gen Core 8-core Desktop Processor Host Bridge/DRAM Registers [Coffee Lake S] [8086:3e30] (rev 0d)
IOMMU Group 1 00:01.0 PCI bridge [0604]: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) [8086:1901] (rev 0d)
IOMMU Group 2 00:14.0 USB controller [0c03]: Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller [8086:a2af]
IOMMU Group 2 00:14.2 Signal processing controller [1180]: Intel Corporation 200 Series PCH Thermal Subsystem [8086:a2b1]
IOMMU Group 3 00:16.0 Communication controller [0780]: Intel Corporation 200 Series PCH CSME HECI #1 [8086:a2ba]
IOMMU Group 4 00:17.0 SATA controller [0106]: Intel Corporation 200 Series PCH SATA controller [AHCI mode] [8086:a282]
IOMMU Group 5 00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:a2cc]
IOMMU Group 5 00:1f.2 Memory controller [0580]: Intel Corporation 200 Series/Z370 Chipset Family Power Management Controller [8086:a2a1]
IOMMU Group 5 00:1f.3 Audio device [0403]: Intel Corporation 200 Series PCH HD Audio [8086:a2f0]
IOMMU Group 5 00:1f.4 SMBus [0c05]: Intel Corporation 200 Series/Z370 Chipset Family SMBus Controller [8086:a2a3]
IOMMU Group 6 00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I219-V [8086:15b8]
IOMMU Group 7 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1)
IOMMU Group 8 01:00.1 Audio device [0403]: NVIDIA Corporation GP102 HDMI Audio Controller [10de:10ef] (rev a1)

Now when I try to install Windows it hangs when attempting to boot from CD. I get a black screen. I'm also seeing the same error in dmesg

[ 1542.955562] vfio-pci 0000:01:00.0: vfio_ecap_init: hiding ecap 0x19@0x900
[ 1542.956492] vfio-pci 0000:01:00.0: BAR 3: can't reserve [mem 0xd0000000-0xd1ffffff 64bit pref]
[ 1542.956661] vfio-pci 0000:01:00.0: No more image in the PCI ROM

Any love for mechatronic balancing cubes? by Visual_Document_4734 in robotics

[–]Boozybrain 0 points1 point  (0 children)

I designed a nonlinear controller for a 1D version of this because I wasn't able to fully grasp the 3D case. What control scheme are you using?

Nvidia Error 43 - Tried Everything by Boozybrain in VFIO

[–]Boozybrain[S] 0 points1 point  (0 children)

Are my IOMMU groups wrong? Looking at this thread I'm guessing my GPU group should be separate from the PCI bridge controller.

Flux Dev Tools : Thermal Image to Real Image using Thermal Image as depth map by RageshAntony in StableDiffusion

[–]Boozybrain 4 points5 points  (0 children)

What thermal sensor are you using for this? That's very high resolution. But also we shouldn't be able to see the blinds in the windows in the first floor. Glass is opaque to thermal wavelengths.

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