I’ve already seen several similar posts about this issue in this community, but this issue is not simply solved, since it highly depends on the hardware.
I currently use the latest kernel of qubes, and I update it appropriately. I use Samsung Galaxy Book S4 with CPU i5-1335U.
The default system setting of Qubes is “suspending if I close the lid”.
But, when I close the lid and open it again, the laptop doesn’t appropriately wake up. I need to shutdown it forecefully.
When I switch the option to “hibernation”, it seems okay at a first glance, but it’s not solving the issue. Qubes doesn’t support hibernation officially. Indeed, the error popup appears, kind of “verb : hibernate not defined”.
This post, I think, explains well about what’s the real problem.
According to Samsung customer support, Galaxy book S4 doesn’t support legacy S3 sleep mode, and they apply “modern standby system”. In conclusion, I think there are no way to sleep it well. It’s the only option to use S0 mode for sleeping.
But, still there is a hope. Because above answer is only applying for someone who uses Windows or Softwares in galaxy book 4, because they recommend that customers use Windows.
I’m still finiding a solution.
Any suggestions or comments are appreciated. Thanks.
Is there any chance you can describe what actually happens when you resume from sleep, namely:
What the backlight does
What shows up of the screen, if anything, and for how long
What happens if you try and interact with the machine
Whether the cursor moves or not (if it shows up on the screen)
What happens if you connect an external display
What else does/doesn’t power back up to full functionality
The dom0/sys-gui dmesg and system journal are also incredibly helpful in times like this, because one of them will likely be spamming errors of some kind.
Also, any chance you could tell us what version of Xen your machine is running? It’s in your GRUB config.
I’ve had SeaGate literally tell me that their SATA hard drives “don’t work on Linux”. I’ve also had similar things said to me by customer support teams of manufacturers of USB keyboards, printers, and webcams.
You name it, and I’ve heard it.
I’d take that advice with a pinch of salt if I were you…
What the backlight does : (keyboard) Backlight doesn’t turn on, but a battery/AC status light does.
What shows up of the screen, if anything, and for how long : Nothing is shown.
What happens if you try and interact with the machine : Nothing happens. It seems it’s just turned off, but there are no response even if I press the power button.
Whether the cursor moves or not (if it shows up on the screen) :
What happens if you connect an external display : I haven’t tried it, I’ll try it.
What else does/doesn’t power back up to full functionality : I’m sorry, I don’t know what I have to say.
I checked Qubes OS global config, but mysteriously, it says
Xen : unknown
I checked it in boot menu
Xen hypervisor version 4.17.5
I agree, but there is no explicit recommendation. In addition, modern manufacturers assume that every customer uses Windows, and most of laptops are designed to use modern standby in Bios level. So, I have no choice.