Merge branch 'gw0-patch-1'

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Andrew David Wong 2021-07-06 06:45:21 -07:00
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@ -9,6 +9,9 @@ ref: 94
title: Suspend/Resume Troubleshooting
---
First check if there are any remarks for similar devices in the [Hardware
Compatibility List (HCL)](/hcl/).
## Network-Manager says “Device not ready” on suspend/resume
These instructions may help with suspend/resume issues for more devices than just wireless cards, that is just the (unfortunately not uncommon) example used here.
@ -130,3 +133,13 @@ This can be achieved under a Windows HVM by opening the Device Manager, selectin
This is illustrated on the screenshot below:
![r2b1-win7-usb-disable.png](/attachment/doc/r2b1-win7-usb-disable.png)
## Suspend turns off the screen and gets stuck
On some devices suspend-to-RAM does not work and a hard power-off is needed to
recover, because the system does not go into deep sleep. To get suspend to
work, you need to add `mem_sleep_default=deep` kernel option. For legacy boot,
or UEFI/legacy in R4.1+, add it to the `GRUB_CMDLINE_LINUX` setting in
`/etc/default/grub`, update the grub config, and reboot. In R4.0 with UEFI
boot, you need to add it to every `kernel=` line in
`/boot/efi/EFI/qubes/xen.cfg` and reboot.