Kubuntu 20.04LTS – Guide for HP 17-ca1027na

[gardenslave]

Respect your Warranty, no responsibility whatsoever accepted for ill prepared
installations or wiping of Windows and Recovery partitions.

NB this is a sketch only, there is ample information elsewhere to ensure a trouble free
experience, please read.

1. Shrink your Windows 10 system and data partitions using diskmgmnt.msc (test choice was 60GB and 100GB respectively). NB with Warranty in mind, don't do this Linux side.
   
2. Prepare a Kubuntu 20.04LTS Live CD or USB stick.
   
3. Reboot, F10 - disable Secure Boot (re-enable for Windows sessions).
   
4. Reboot, F9
   
5. Install Kubuntu 20.04LTS

Your system should run nicely, but there are still a few issues to address concerning default
amdgpu driver and/or compositor.

Problem:

Windows do not render after suspend and resume
(just ghostly title bars, panels and widgets visible).

Note: Not investigated, whether or not this is compositor related and fixable as below.

Solution:

Download latest proprietary AMD driver 'Radeon™ Software for Linux® 20.10'
(as of May 2020) for Ubuntu.

1. Extract archive
   ~$ tar -xvf amdgpu-pro-20.10-1048554-ubuntu-18.04.tar.xz
   
2. To circumvent OS version check, only install relevant packages
   ~$ sudo dpkg -i amdgpu-dkms-firmware_5.4.7.53-1048554_all.deb \
             amdgpu-dkms_5.4.7.53-1048554_all.deb amdgpu-core_20.10-1048554_all.deb
   
   
3. Reboot.

Although only certified for Ubuntu 18.04, no problems experienced in default 2D modes
(not tested in 3D modes, e.g. gaming).

Problem:

Black screen and/or system unresponsive after suspend and resume.

Solution:

This appears to be compositor related but is fixable:

1. Create the following script in /usr/bin (don't forget to make it executable)

/usr/bin/susagent
#!/bin/bash

# do nothing if agent already started by desktop shortcut
if [ -z $(pgrep -f "dbus-monitor.*org.freedesktop.ScreenSaver") ] ; then

    echo $(date)" Disabling compositor"
    qdbus org.kde.KWin /Compositor org.kde.kwin.Compositing.suspend

    if [ ${1:+(-s|--suspend)} ] ; then systemctl suspend ; fi

    dbus-monitor --session \
                "type='signal',interface='org.freedesktop.ScreenSaver'" |
        while read x; do
            case "$x" in
            *"boolean false"*)
                echo $(date)" Enabling compositor"
                qdbus org.kde.KWin /Compositor org.kde.kwin.Compositing.resume
                # break, exit don't work after piping
                kill $(pgrep -f "dbus-monitor.*org.freedesktop.ScreenSaver")
                break;;
            esac
        done
fi

2. Backup /etc/systemd/sleep.conf as sleep.config.original

3. Create/alter /etc/systemd/sleep.conf

/etc/systemd/sleep.conf
[Sleep]
#AllowSuspend=yes
#AllowHibernation=yes
#AllowSuspendThenHibernate=yes
#AllowHybridSleep=yes
##SuspendMode=
SuspendMode=suspend
##SuspendState=mem standby freeze
SuspendState=mem
#HibernateMode=platform shutdown
#HibernateState=disk
#HybridSleepMode=suspend platform shutdown
#HybridSleepState=disk
#HibernateDelaySec=180min

4. Backup /etc/systemd/logind.conf as logind.conf.original

5. Create/alter /etc/systemd/logind.conf

/etc/systemd/logind.conf
[Login]
#NAutoVTs=6
#ReserveVT=6
#KillUserProcesses=no
#KillOnlyUsers=
#KillExcludeUsers=root
#InhibitDelayMaxSec=5
#HandlePowerKey=poweroff
#HandleSuspendKey=suspend
#HandleSuspendKey=ignore
#HandleHibernateKey=hibernate
HandleLidSwitch=suspend
#HandleLidSwitch=ignore
HandleLidSwitchDocked=suspend
#HandleLidSwitchDocked=ignore
#PowerKeyIgnoreInhibited=no
#SuspendKeyIgnoreInhibited=no
#HibernateKeyIgnoreInhibited=no
#LidSwitchIgnoreInhibited=yes
#HoldoffTimeoutSec=30s
#IdleAction=ignore
#IdleActionSec=30min
#RuntimeDirectorySize=10%
#RemoveIPC=yes
#InhibitorsMax=8192
#SessionsMax=8192
#UserTasksMax=33%

6. Create the following service in /etc/systemd/system

/etc/systemd/system/suspend-monitor@.service
[Unit]
Description=User suspend and resume actions
Before=suspend.target

[Service]
User=%I
Type=forking
ExecStart=/usr/bin/susagent

[Install]
WantedBy=suspend.target

7. Enable this service (change <username> to suit)

~$ sudo systemctl enable suspend-monitor@<username>

8. Load service

~$ sudo systemctl daemon-reload

9. Check OK

~$ sudo systemctl status suspend-monitor@<username>

Suspend/resume should work fine now.

Here's a desktop file for convenience:

[Desktop Entry]
;X-DBUS-StartupType=none
;X-KDE-SubstituteUID=false
;X-KDE-Username=
Comment[en_GB]=
Comment=
Exec=susagent --suspend
GenericName[en_GB]=Lock screen then suspend
GenericName=Lock screen then suspend
Icon=system-suspend
MimeType=
Name[en_GB]=Suspend
Name=Suspend
Path=
StartupNotify=true
Terminal=false
TerminalOptions=
Type=Application
X-DBUS-ServiceName=
X-DBUS-StartupType=
X-KDE-SubstituteUID=false
X-KDE-Username=

And to remap right Alt as menu key:

~/.Xmodmap
keycode 108 = Menu NoSymbol Menu


Sorry, due to other commitments, this will probably be a 'one off' post. Corrections,
improvements and responses to help requests from other members greatly
appreciated.


Footnote:

Also works on a venerable HP550 running Kubuntu 18.04LTS, subject to a few additions:

/etc/acpi/events/Lid
event=button/lid LID close
action=/usr/bin/susagent --suspend

/etc/acpi/sleep-button
event=button/sleep SBTN *
action=/usr/bin/susagent

(Keep existing sleep.conf and logind.conf - uncomment as above.)