Here are my /var/log/apt and /var/log/installer logs.
Since I am not used to this kind of work it took some time to retrieve them. Perhaps someone could have guided me.
Some further experiment show that nomodeset in grub makes Kubuntu boot to the screen where you choose to "Try Kubuntu" or "Install Kubuntu". If you choose "Try Kubuntu" the Live session crashes as before. I have not tried the Install option. This is my production machine and I can not experiment on it.
Here are my /var/log/apt and /var/log/installer logs.
Since I am not used to this kind of work it took some time to retrieve them. Perhaps someone could have guided me.
Some further experiment show that nomodeset in grub makes Kubuntu boot to the screen where you choose to "Try Kubuntu" or "Install Kubuntu". If you choose "Try Kubuntu" the Live session crashes as before. I have not tried the Install option. This is my production machine and I can not experiment on it.