Arch suspend resume

Arch suspend resume

Feb 29,  · Resume from suspend freezes my system now and then since swapping from a GeForce GTX to a GeForce GTX (same driver/kernel/os as before) - the monitor gets waked up but stays black and the system gets completely unresponsive. System specs: OS: Arch Linux Kernel: ARCH NVIDIA driver: NVIDIA card: VGA compatible Oct 06,  · This failure to resume happens regardless of whether I'm using X at the time of suspend or just booted to the console. For what it's worth, I was previously running LinHES on this machine and had never actually attempted a suspend on it, but one of the reasons that I switched to Arch is because LinHES would not even shut down systemctl suspend-then-hibernate should work out of the box assuming that suspend as well as hibernate, both of which are fairly well documented, actually work. The action that should happen when you close the lid can be configured as described in Power management#ACPI events which also includes suspend-then-hibernate

Power management/Suspend and hibernate - ArchWiki

video card re-initialization. Using low level interfaces directly is significantly faster than using any high level interface, since running all the pre- and post-suspend hooks takes time, but hooks can properly set hardware clock, restore wireless etc. The most straightforward approach is to directly inform the in-kernel software suspend code swsusp to enter a suspended state; the exact method and state depends on the level of hardware support.

See kernel documentation for details. The uswsusp 'Userspace Software Suspend' is a wrapper around the kernel's suspend-to-RAM mechanism, which performs some graphics adapter manipulations from userspace before suspending and after resuming.

Actually hooking them up to power buttons or menu clicks or laptop lid events is usually left to other tools. systemd provides native commands for suspend, hibernate and arch suspend resume hybrid suspend, see Power management Power management with systemd for details. This is the default interface used in Arch Linux, arch suspend resume.

Also see systemctl 1systemd-sleep 8and systemd. special 7. In order to use hibernation, you need to create a swap partition or file. You will also need to configure the initramfs. This tells the kernel to attempt resuming from the specified swap in early userspace. These three steps are described in detail below. Even if your swap partition is smaller than RAM, you still have a big chance of hibernating successfully.

For systems with a large amount of RAM, smaller values may drastically increase the speed of resuming a hibernating system. See systemd systemd-tmpfiles - temporary files to make this change persistent. It must fully fit in one swap partition or one swap file. For example:. The kernel parameters will only take effect after rebooting. Or when hibernating to a swap file, if the swap file is on volume and has the offset :. See the kernel documentation. Do not try to use the filefrag tool, on Btrfs the "physical" offset you get from filefrag is not the real physical offset on disk; there is a virtual disk address space in order to support multiple devices.

cthen compile it. Note the the first physical offset returned by this tool, arch suspend resume. In this example, we use Also note the pagesize that can be found with getconf PAGESIZE.

Hibernation into a thinly-provisioned LVM volume is possible, but you have to make sure that the volume is fully allocated.

Otherwise resuming from it will fail, see FS With Intel Rapid Start Technology IRST enabled, resuming from a deep sleep takes " a few seconds longer than resuming from S3 but is far faster arch suspend resume resuming arch suspend resume hibernation ".

Many Intel-based systems have firmware support for IRST but require a special partition on an SSD rather than an HDD. OEM deployments of Windows may already have a preexisting IRST partition which can be retained during the Arch Linux installation process rather than wiping and repartitioning the whole SSD. It should show up as an unformatted partition equal in size to the system's RAM. However, if you intend to wipe and repartition the whole drive or have already done sothen the IRST partition must arch suspend resume recreated if you also plan on using the technology.

This can be done by creating an empty partition equal in size to the system's RAM and by setting its partition type to GUID D3BFE2DE-3DAFDF-BAE3AD for a GPT partition or ID 0x84 for an MBR partition.

You may also need to enable support for IRST in your system's firmware settings. The duration of the IRST hibernation process i. Some systems may indicate the process's completion with an LED indicator, arch suspend resume, e.

You might want arch suspend resume tweak your DSDT table to make it work. See DSDT. These problems have been seen on both laptops and desktops.

This is not an official solution, but switching to an older kernel, especially the LTS-kernel, will probably fix this. Bugged watchdog timer may reset the computer before the system finished creating the hibernation image. Sometimes the screen goes black due to device initialization from within the initramfs.

Removing any modules you might have in Mkinitcpio MODULES and rebuilding the initramfs, can possibly solve this issue, specially graphics drivers for early KMS.

Initializing such devices before resuming can cause inconsistencies that prevents the system resuming from hibernation. This does not affect resuming from RAM. Also, check the blog article best practices to debug suspend issues. Moving from the radeon video driver to the newer AMDGPU driver could also help to make the hibernation and awakening process successful.

For Intel graphics drivers, enabling early KMS may help to solve the blank screen issue. Refer to Kernel mode setting Early KMS start for details, arch suspend resume. After upgrading to kernel 4.

Blacklisting the module nvidiafb might help. The module needs to be added to initramfs as:. Then regenerate the initramfs. If Wake-on-LAN is active, the network interface card will consume power even if the computer is hibernated. For some Intel Haswell systems with the LynxPoint and LynxPoint-LP chipset, instantaneous wakeups after suspend are reported.

Instantaneous resume may happen, for example, if a USB device is plugged during suspend and ACPI wakeup triggers are enabled. A viable work-around for such a system, arch suspend resume, if it is not on the denylist yet, is to disable the wakeup triggers.

An example to disable wakeup through USB is described as follows. The relevant devices are EHC1EHC2 and XHC for USB 3. To toggle their state you have to echo the device name to the file as root. This should result in suspension working again. However, arch suspend resume settings are only temporary and would have to be set at every reboot.

To automate this take a look at systemd systemd-tmpfiles arch suspend resume temporary files or see BBS thread for a possible solution and more information. Example solution with disabling PTXH and XHC0 at the same time. For some reason, two lines with PTXH and XHC0 one per line or in different files does not work. If you use nouveau driver, the reason of instantaneous wakeup may be a bug in that driver, which sometimes prevents graphics card from suspension, arch suspend resume.

One possible workaround is unloading nouveau kernel module right before going to sleep and loading it back after wakeup. To do this, create the following script:. The first echo line unbinds nouveaufb from the framebuffer console driver fbcon. When you hibernate your system, the system should power off after saving the state on the disk.

Sometimes, you might see arch suspend resume power LED is still glowing. If that happens, it might be instructive to set the HibernateMode to shutdown in sleep. With the above configuration, if everything else is set up correctly, on invocation of a systemctl hibernate the machine will shutdown saving state to disk as it does so. Home Packages Forums Wiki Bugs Security AUR Download.

Arch suspend resume articles Uswsusp systemd Power management. linux-hardened does not support hibernation, see FS Warning: Btrfs on Linux kernel before version 5.

Failure to heed this warning may result in file system corruption. While a swap file may be used on Btrfs when mounted through a loop device, this will result in severely degraded swap performance. The swap-offset binary is provided within the set of tools uswsusp. conf via the keys resume device and resume offset. No arch suspend resume is required in this case. See systemd issue for two workarounds. Tip: You might want to decrease the swappiness for your swap file if the only purpose is to be able to hibernate and not expand RAM, arch suspend resume.

Warning: Do not to use TRIM on thinly-provisioned swap volumes that are used for hibernation, i. Otherwise the used space will be deallocated. Note: LVM users should add the resume hook after lvm2, arch suspend resume. Warning: The Intel Rapid Start partition is not encrypted; "Intel recommends disabling Intel Rapid Start Technology if you are using software-based disk encryption".

Tip: The duration of time before IRST kicks in after suspending can be adjusted in the system's firmware settings. Category : Power management. Navigation menu Personal tools Create account Log in. Namespaces Page Discussion. Views Read View source Arch suspend resume history, arch suspend resume. Main page Table of contents Getting involved Wiki news Random page.

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How to pause or suspend a linux job and then resume it

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Talk:Power management/Suspend and hibernate - ArchWiki

This is actually my post too in but still haven't got a response. Problem is Resume not working after Suspend. Suspend/Resume works on previous Oct 06,  · This failure to resume happens regardless of whether I'm using X at the time of suspend or just booted to the console. For what it's worth, I was previously running LinHES on this machine and had never actually attempted a suspend on it, but one of the reasons that I switched to Arch is because LinHES would not even shut down systemctl suspend-then-hibernate should work out of the box assuming that suspend as well as hibernate, both of which are fairly well documented, actually work. The action that should happen when you close the lid can be configured as described in Power management#ACPI events which also includes suspend-then-hibernate