I am hardcore Windows user and recently moved to Ubuntu to try Linux, I can see how Linux is better, I am loving it.
However, I have been experiencing problems with Ubuntu going unresponsive. Basically everything freezes and I can only move the mouse and I can hear the music still playing in the background. I have noticed that problem happens with either watching videos on YouTube, VLC or browsing in the Spotify app or Microsoft teams app.
I tried restarting GNOME via Alt+F2+r but nothing happens. Also tried killall -3 gnome-shell
from the console but doesn't help. My only way out is to reboot the computer. I have been troubleshooting this issue for few months already, I end up reinstalling Ubuntu 18.04 a couple of times, also installed the latest version of Ubuntu 20.04, but the issue is still there.
I got an Dell Precision Tower 5810
My graphics card is:
lspci -k | grep -EA2 'VGA|3D'
03:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cape Verde GL [FirePro W4100]
Subsystem: Dell Cape Verde GL [FirePro W4100]
Kernel driver in use: radeon
My Ubuntu version is:
Ubuntu 20.04 LTS
Release: 20.04
Codename: focal
Kernel version: 5.4.0-33-generic
More hardware info.
r2@r2-Dell-5810:/var/log$ free -h
total used free shared buff/cache available
Mem: 15Gi 2.4Gi 10Gi 185Mi 2.7Gi 12Gi
Swap: 2.0Gi 0B 2.0Gi
r2@r2-Dell-5810:/var/log$ sysctl vm.swappiness
vm.swappiness = 60
r2@r2-Dell-5810:/var/log$ sudo dmidecode -s bios-version
A14
r2@r2-Dell-5810:/var/log$ sudo lshw -C memory
*-firmware
description: BIOS
vendor: Dell Inc.
physical id: 0
version: A14
date: 07/01/2016
size: 64KiB
capacity: 16MiB
capabilities: pci pnp upgrade shadowing cdboot bootselect edd int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer acpi usb biosbootspecification uefi
*-cache:0
description: L1 cache
physical id: 75
slot: CPU Internal L1
size: 256KiB
capacity: 256KiB
capabilities: internal write-back
configuration: level=1
*-cache:1
description: L2 cache
physical id: 7a
slot: CPU Internal L2
size: 1MiB
capacity: 1MiB
capabilities: internal write-back unified
configuration: level=2
*-cache:2
description: L3 cache
physical id: 7f
slot: CPU Internal L3
size: 10MiB
capacity: 10MiB
capabilities: internal write-back unified
configuration: level=3
*-memory
description: System Memory
physical id: 2f
slot: System board or motherboard
size: 16GiB
capabilities: ecc
configuration: errordetection=multi-bit-ecc
*-bank:0
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous 2400 MHz (0.4 ns)
product: 9ASF51272PZ-2G3B1
vendor: Micron
physical id: 0
serial: 133F18DB
slot: DIMM1
size: 4GiB
width: 64 bits
clock: 2400MHz (0.4ns)
*-bank:1
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous [empty]
product: DIMM5_PartNumber
vendor: DIMM5_Manufacturer1
physical id: 1
serial: DIMM5_SerNum
slot: DIMM5
*-bank:2
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous 2400 MHz (0.4 ns)
product: 9ASF51272PZ-2G3B1
vendor: Micron
physical id: 2
serial: 133F18AF
slot: DIMM3
size: 4GiB
width: 64 bits
clock: 2400MHz (0.4ns)
*-bank:3
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous [empty]
product: DIMM7_PartNumber
vendor: DIMM7_Manufacturer1
physical id: 3
serial: DIMM7_SerNum
slot: DIMM7
*-bank:4
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous 2400 MHz (0.4 ns)
product: 9ASF51272PZ-2G3B1
vendor: Micron
physical id: 4
serial: 133F2662
slot: DIMM2
size: 4GiB
width: 64 bits
clock: 2400MHz (0.4ns)
*-bank:5
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous [empty]
product: DIMM6_PartNumber
vendor: DIMM6_Manufacturer1
physical id: 5
serial: DIMM6_SerNum
slot: DIMM6
*-bank:6
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous 2400 MHz (0.4 ns)
product: 9ASF51272PZ-2G3B1
vendor: Micron
physical id: 6
serial: 133F26E0
slot: DIMM4
size: 4GiB
width: 64 bits
clock: 2400MHz (0.4ns)
*-bank:7
description: RIMMProject-Id-Version: lshwReport-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>PO-Revision-Date: 2012-02-05 00:26+0000Last-Translator: Andi Chandler <Unknown>Language-Team: English (United Kingdom) <en_GB@li.org>MIME-Version: 1.0Content-Type: text/plain; charset=UTF-8Content-Transfer-Encoding: 8bitX-Launchpad-Export-Date: 2020-04-16 17:42+0000X-Generator: Launchpad (build 2e26c9bbd21cdca248baaea29aeffb920afcc32a) Synchronous [empty]
product: DIMM8_PartNumber
vendor: DIMM8_Manufacturer1
physical id: 7
serial: DIMM8_SerNum
slot: DIMM8
Last freeze was on June 6 at 23:13 and I rebooted at 23:15. See below syslogs at the time.
Jun 6 23:03:21 r2-Dell-5810 snapd[875]: autorefresh.go:397: auto-refresh: all snaps are up-to-date
Jun 6 23:04:15 r2-Dell-5810 rtkit-daemon[1282]: Supervising 6 threads of 5 processes of 1 users.
Jun 6 23:04:15 r2-Dell-5810 rtkit-daemon[1282]: Supervising 6 threads of 5 processes of 1 users.
Jun 6 23:09:01 r2-Dell-5810 spotify_spotify.desktop[13705]: [2020/06/06 23:09:01:6244] ERR: getaddrinfo failed: -3
Jun 6 23:15:52 r2-Dell-5810 /usr/lib/gdm3/gdm-x-session[1962]: (**) Option "fd" "25"
Jun 6 23:15:52 r2-Dell-5810 /usr/lib/gdm3/gdm-x-session[1962]: (II) event1 - Power Button: device removed
Below is the Kern.log
Jun 6 23:02:49 r2-Dell-5810 kernel: [19473.745225] perf: interrupt took too long (2518 > 2500), lowering kernel.perf_event_max_sample_rate to 79250
Jun 6 23:15:53 r2-Dell-5810 kernel: [20257.714790] rfkill: input handler enabled
Jun 6 23:15:53 r2-Dell-5810 kernel: [20257.715018] audit: type=1107 audit(1591481753.163:6206): pid=840 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.NetworkManager" member="CheckPermissions" name=":1.11" mask="receive" pid=13705 label="snap.spotify.spotify" peer_pid=841 peer_label="unconfined"
Jun 6 23:15:53 r2-Dell-5810 kernel: [20257.715018] exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
Jun 6 23:15:53 r2-Dell-5810 kernel: [20257.716336] audit: type=1107 audit(1591481753.163:6207): pid=840 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_signal" bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.NetworkManager" member="CheckPermissions" name=":1.11" mask="receive" pid=13705 label="snap.spotify.spotify" peer_pid=841 peer_label="unconfined"
Jun 6 23:15:53 r2-Dell-5810 kernel: [20257.716336] exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
dmesg -w
and put terminal on top. That displays kernel messages. Red messages are errors. If these are there, they could point to the cause of the problem (likely a hardware issue). – vanadium Jun 07 '20 at 11:20free -h
andsysctl vm.swappiness
andsudo dmidecode -s bios-version
andsudo lshw -C memory
. – heynnema Jun 07 '20 at 13:31