I have been installing and upgrading to Fedora 30 and have run into some issues. Here is my own list just so I don't forget.
XPS 15 fresh install of KDE spin
Here are the boot paramaters:
<insert_boot_parameters>
Lenovo Thinkpad W510 hangs in KDE spin very easily.
REF: https://bugzilla.redhat.com/show_bug.cgi?id=1706420
Run the following command from a window IMMEDIATELY after logging into KDE session.
kcmshell5 qtquicksettings
Set "Render Loop" setting from Automatic to Basic.
Run the following command to restart the KDE shell
killall plasmashell && kstart5 plasmashell
# If kstart5 is not available, run this command to install it:
sudo dnf -y install kstart