Comment # 2
on bug 100399
from Luke A. Guest
I can confirm that the OS completely hangs when unbinding R9 380 (Tonga Pro)
with X running. Works fine with X off.
Thought I'd add my post from the linked thread, so I can be updated.
------------------
I have amdgpu and vfio-pci both in kernel, used the following to unbind it.
#!/bin/bash
for dev in "$@"; do
vendor=$(cat /sys/bus/pci/devices/$dev/vendor)
device=$(cat /sys/bus/pci/devices/$dev/device)
if [ -e /sys/bus/pci/devices/$dev/driver ]; then
echo $dev > /sys/bus/pci/devices/$dev/driver/unbind
fi
echo $vendor $device > /sys/bus/pci/drivers/vfio-pci/new_id
done
lspci -nnk shows:
03:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc.
[AMD/ATI] Tonga PRO [Radeon R9 285/380] [1002:6939] (rev f1)
Subsystem: PC Partner Limited / Sapphire Technology Radeon R9 380 Nitro
4G D5 [174b:e308]
Kernel driver in use: vfio-pci
03:00.1 Audio device [0403]: Advanced Micro Devices, Inc. [AMD/ATI] Tonga HDMI
Audio [Radeon R9 285/380] [1002:aad8]
Subsystem: PC Partner Limited / Sapphire Technology Radeon R9 285/380
HDMI Audio [174b:aad8]
Kernel driver in use: vfio-pci
Kernel modules: snd_hda_intel
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