Ubuntu desktop 20.04 LTS screen doesn't wake after going to sleep
I’m using an external monitor connected by HDMI, and an Nvidia graphics card (the drivers all seem to be set up correctly). I actually noticed this problem with onboard graphics (before installing the nvidia card) so I don’t think it’s driver related.
I noticed that there are some apparmor denials the dmesg log on /org/freedesktop/ paths around the same time (are these related)? I don’t know very much about apparmor so would appreciate some guidance there. I’m not using any custom apparmor profiles.
Thanks 🙂
# dmesg log
[ 288.854836] audit: type=1400 audit(1609595950.565:89): apparmor="DENIED" operation="capable" profile="/snap/snapd/10492/usr/lib/snapd/snap-confine" pid=2836 comm="snap-confine" capability=4 capname="fsetid"
[ 290.107404] audit: type=1326 audit(1609595951.817:90): auid=1000 uid=1000 gid=1000 ses=4 pid=2836 comm="snap-store" exe="/snap/snap-store/518/usr/bin/snap-store" sig=0 arch=c000003e syscall=314 compat=0 ip=0x7f4bff739639 code=0x50000
[ 290.370340] audit: type=1107 audit(1609595952.077:91): pid=759 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.13" pid=2836 label="snap.snap-store.ubuntu-software" peer_pid=761 peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ 290.887571] audit: type=1107 audit(1609595952.597:92): pid=759 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.11" pid=2836 label="snap.snap-store.ubuntu-software" peer_pid=782 peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ 290.887979] audit: type=1107 audit(1609595952.597:93): pid=759 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.PolicyKit1.Authority" member="CheckAuthorization" mask="send" name=":1.11" pid=2836 label="snap.snap-store.ubuntu-software" peer_pid=782 peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ 290.909562] audit: type=1107 audit(1609595952.617:94): pid=759 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.11" pid=2836 label="snap.snap-store.ubuntu-software" peer_pid=782 peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ 290.909914] audit: type=1107 audit(1609595952.617:95): pid=759 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call" bus="system" path="/org/freedesktop/PolicyKit1/Authority" interface="org.freedesktop.PolicyKit1.Authority" member="CheckAuthorization" mask="send" name=":1.11" pid=2836 label="snap.snap-store.ubuntu-software" peer_pid=782 peer_label="unconfined"
exe="/usr/bin/dbus-daemon" sauid=103 hostname=? addr=? terminal=?'
[ 291.197614] audit: type=1400 audit(1609595952.905:96): apparmor="DENIED" operation="open" profile="snap.snap-store.ubuntu-software" name="/etc/PackageKit/Vendor.conf" pid=2836 comm="snap-store" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 298.196733] audit: type=1400 audit(1609595959.905:97): apparmor="DENIED" operation="open" profile="snap.snap-store.ubuntu-software" name="/var/lib/snapd/hostfs/usr/share/gdm/greeter/applications/gnome-initial-setup.desktop" pid=2836 comm="pool-org.gnome." requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 298.219801] audit: type=1400 audit(1609595959.929:98): apparmor="DENIED" operation="open" profile="snap.snap-store.ubuntu-software" name="/var/lib/snapd/hostfs/usr/share/gdm/greeter/applications/gnome-initial-setup.desktop" pid=2836 comm="pool-org.gnome." requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
# Graphics driver info
$ nvidia-smi
Sat Jan 2 14:33:26 2021
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 460.27.04 Driver Version: 460.27.04 CUDA Version: 11.2 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 GeForce GTX 105... On | 00000000:10:00.0 On | N/A |
| 35% 32C P5 N/A / 75W | 480MiB / 4006MiB | 0% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 1099 G /usr/lib/xorg/Xorg 101MiB |
| 0 N/A N/A 2429 G /usr/lib/xorg/Xorg 254MiB |
| 0 N/A N/A 2564 G /usr/bin/gnome-shell 108MiB |
| 0 N/A N/A 3854 G /usr/lib/firefox/firefox 1MiB |
| 0 N/A N/A 5364 G /usr/lib/firefox/firefox 1MiB |
+-----------------------------------------------------------------------------+
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