Cannot install 18.04.01 LTS on Dell Inspiron 1525

[ftirapelle]

Hi

Two problems on my Dell Inspiron 1525:

1) After a recent update of Kubuntu 16.04 LTS x64 some buttons (for example the menu button of firefox or the downloads button do not work. I click on the button but nothing appears

2) I'm not able to install the latest version 18.04.01 of Kubuntu x64. Errors in the image (280569) .

I have tried to modify the GRUB inserting nomodeset or nvidia-drm.modeset=1. But this hasn't help

[oldfred]

It looks like that system only has Intel video, so boot parameters for nVidia will not normally help, but you may need Intel video boot parameter(s).

This suggests: video=SVIDEO-1:d
https://askubuntu.com/questions/893817/boot-very-slow-because-of-drm-kms-helper-errors
This suggests: sudo apt-get remove xserver-xorg-video-intel
https://www.reddit.com/r/archlinux/comments/6m3wi9/drm_atomic_helper_error_flip_done_timed_out/

Issues may be related to:
Ubuntu & Debian Abandon Intel X.Org Driver For Most Hardware, Moves To Modesetting DDX - anything past the i965GM era
https://www.phoronix.com/scan.php?page=news_item&px=Ubuntu-Debian-Abandon-Intel-DDX
Ubuntu and Debian (and thus other Debian-based distributions too) have abandoned the xf86-video-intel X.Org driver for all recent generations of Intel graphics hardware and instead makes use of the xf86-video-modesetting generic driver in its place.

[ftirapelle]

I have tried to remove xserver-xorg-video-intel and to modify /etc/default/grub inserting video=SVIDEO-1:d but I have the same problems.
Any other ideas?