libinput says "your system is too slow"

Sounds like another libinput message, which is actually a mutter issue. See also bug 1588009 and bug 1856553

Although Xorg is a different process. So this is in the same family of issues, but Xorg and not Mutter.

Status changed to 'Confirmed' because the bug affects multiple users.

It looks like this might be a fix:

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1241

Status changed to 'Confirmed' because the bug affects multiple users.

My system randomly freeze with these kind of messages attached.
I'm streaming music from this computer (samoa) and everything works fine, the streaming continue without problem. But I can't login locally. I can login remotely from another computer and kill many processeson samoa, but I am unable to perform a shutdown! I had to do a hard reset...

I have the same sort of issue... Ubuntu 20.04 (Ubuntu Studio spin).

From Xorg.0.log
[ 13886.780] (EE) client bug: timer event4 debounce short: scheduled expiry is in the past (-9ms), your system is too slow
[ 13926.080] (EE) client bug: timer event4 debounce: scheduled expiry is in the past (-15ms), your system is too slow

Video freezes, external display will go black or the system will crash (I expect it is only X that crashes because if I am editing audio in Audacity, the audio will continue to play, yet I will have to hard reset my machine to regain control. Keyboard and mouse input are dead as part of X system. I have not tried remoting in to it from another machine yet.

Running a MacBook Pro retina mid 2012 with 8GB RAM and the i7 processor with GeForce GT 650M Mac Edition graphics chip at 4K@30Hz output. If I have the system running powersave, I get the hard crashes, with ondemand governor I get the timeouts. Going to performance causes the fans to run all the time which is loud.

Looks like the incarnation of "intel gdm" bug to me, where pressing Alt would unfreeze everything.
But that time it's for NV and pressing Alt doesn't help at all.
The scenarios are the same though for me: any hard work done by JetBrains Idea and it freezes for some time.

Encountered similiar issue. I have: CPU - AMD 3700X; GPU - GeForce RTX 2060

Here're the related logs:

Aug 15 14:34:12 desktop kernel: NVRM: GPU at PCI:0000:07:00: GPU-fdd266b8-85b0-372c-6113-8dff8957ba75
Aug 15 14:34:12 desktop kernel: NVRM: Xid (PCI:0000:07:00): 8, pid=1350, Channel 00000010
Aug 15 14:34:21 desktop /usr/lib/gdm3/gdm-x-session[1084]: (II) event6 - USB Optical Mouse: SYN_DROPPED event - some input events have been lost.
Aug 15 14:34:21 desktop /usr/lib/gdm3/gdm-x-session[1084]: (EE) client bug: timer event6 debounce: scheduled expiry is in the past (-1227ms), your system is too slow
Aug 15 14:34:21 desktop /usr/lib/gdm3/gdm-x-session[1084]: (EE) client bug: timer event6 debounce short: scheduled expiry is in the past (-1240ms), your system is too slow
Aug 15 14:34:22 desktop google-chrome.desktop[2901]: [0815/143422.499770:WARNING:exception_snapshot_linux.cc(427)] Unhandled signal -1
Aug 15 14:34:22 desktop google-chrome.desktop[2901]: [2893:2923:0815/143422.525266:ERROR:gpu_process_host.cc(995)] GPU process exited unexpectedly: exit_code=512
Aug 15 14:34:23 desktop kernel: sched: RT throttling activated
Aug 15 14:34:24 desktop /usr/lib/gdm3/gdm-x-session[1084]: (EE) NVIDIA(GPU-0): WAIT (2, 8, 0x8000, 0x0000a2d0, 0x0000df98)
Aug 15 14:34:31 desktop /usr/lib/gdm3/gdm-x-session[1084]: (EE) NVIDIA(GPU-0): WAIT (1, 8, 0x8000, 0x0000a2d0, 0x0000df98)

note that when I encountered the issue, I was just browsing webpage with my Chrome. Nothing CPU/GPU intensitve task is running.

> scheduled expiry is in the past (-1227ms), your system is too slow

That's a stutter of over a second between frames which is higher than usual. Please make sure you are not using any GNOME extensions that didn't come with Ubuntu.

I am encountering a similar issue. My system completely shuts down without any warning while doing nothing resource-intensive. The log just before shutting down is as follows:

/usr/lib/gdm-x-session[1011]: (EE) client bug: timer event20 debounce: scheduled expiry is in the past (-0ms), your system is too slow
/usr/lib/gdm-x-session[1011]: (EE) client bug: timer event20 debounce short: scheduled expiry is in the past (-13ms), your system is too slow

To be fair, "your system is too slow" really means the architecture of Mutter (used in gnome-shell) is too slow. Not the hardware.

This problem is being improved in newer versions of Mutter using some threading, but generally it's not an issue anyone should be concerned about.

There is a kernel regression that causes some of the problem:

  https://bugzilla.kernel.org/show_bug.cgi?id=212461

But other than that it should be mostly fixed, not entirely, in GNOME 40.

I'm getting spammed by libinput messages about the system being slow. A couple of patches in libinput were merged to master about month ago that rate limits some messages that previously were not, and should at least stop the spamming of messages, if you use a wireless mouse for example the journal gets flooded if you're doing a lot of mouse movements.

Please consider backporting these.

https://gitlab.freedesktop.org/libinput/libinput/-/commit/a1e9150210abda0d3dd41127330cd7985d29957d
https://gitlab.freedesktop.org/libinput/libinput/-/commit/64a49d18b948a5b8ac88da9207689af356a081cf

I see the messages with higher numbers than 20ms in some bug reports so the above change won't really solve it, just reduce the number of people who see the message.

Luckily, gnome-shell 40 in Ubuntu 21.10 and gnome-shell 41/42 in Ubuntu 22.04 changes the input system to fix more cases. Maybe not 100% still...

The kernel bug also sounds very relevant: https://bugzilla.kernel.org/show_bug.cgi?id=212461

The problem come back again after recent updates in ubuntu 20.04. System is stuttering when moving mouse and typing on keyboard:
mutter 3.36.9-0ubuntu0.20.04.2
xserver-xorg-input-libinput 0.29.0-1
libinput10:amd64 1.15.5-1ubuntu0.3
GNOME Shell 3.36.9
xorg-server 2:1.20.13-1ubuntu1~20.04.3
5.15.0-46-generic

Lot of errors like following in journald:
```
/usr/lib/gdm3/gdm-x-session[4273]: (EE) client bug: timer event16 debounce short: scheduled expiry is in the past (-2ms), your system is too slow
/usr/lib/gdm3/gdm-x-session[4273]: (EE) client bug: timer event16 debounce: scheduled expiry is in the past (-1ms), your system is too slow

```

Other DE does not have this issue.

Please try Ubuntu 22.04 when you can because it is much faster:

https://ubuntu.com/download/desktop

I am seeing this issue in Ubuntu 22.10 , specifically for a Razer Deathadder mouse :

Jan 17 17:59:28 semiauto /usr/libexec/gdm-x-session[2147]: (EE) event20 - Razer Razer DeathAdder: client bug: event processing lagging behind by 24ms, your system is too slow

Which information do you need to troubleshoot further ?

I have two laptops with Ubuntu 22.04 and only one laptop has random freezes with this syslog:

Aug 29 15:20:23 pulse /usr/libexec/gdm-x-session[1287]: (II) event6 - Logitech M705: SYN_DROPPED event - some input events have been lost.
Aug 29 15:20:23 pulse /usr/libexec/gdm-x-session[1287]: (EE) client bug: timer event6 debounce: scheduled expiry is in the past (-1246ms), your system is too slow
Aug 29 15:20:23 pulse /usr/libexec/gdm-x-session[1287]: (EE) client bug: timer event6 debounce short: scheduled expiry is in the past (-1259ms), your system is too slow

$ uname -a
Linux pulse 6.2.0-31-generic #31~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Aug 16 13:45:26 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

Once X got frozen permanently and I had to login via SSH to restart the X system.