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[Tips] Enable suspend to RAM with Atheros AR9227 chipset on Debian 11

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mzs_47
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[Tips] Enable suspend to RAM with Atheros AR9227 chipset on Debian 11

#1 Post by mzs_47 »

I installed a TPlink PCI wireless card on a desktop running Debian 11 AMD64, post that the suspend to RAM feature stopped working and the OS used to panic(likely) and reboot.

Few days ago, I realized that with PCI passthrough and I could connect to the wireless network from a VM, thereby the host will remain safe, however the wifi connection was not even connecting on Debian 11 VM(it worked out of the box on a Debian 10 VM), and while debugging this, the below Debian forum post helped me resolve the connectivity issue first, seeing this I took the chance and tried this on the host directly and it finally allowed me to suspend to RAM after months!

I just had to:

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echo "options ath9k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath9k.conf
sudo modprobe -r ath9k
sudo modprobe -v ath9k
Source: viewtopic.php?p=727041#p727041

The wireless card on the PC is:

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04:02.0 Network controller: Qualcomm Atheros AR9227 Wireless Network Adapter (rev 01)

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