Trying to install Xubuntu (xubuntu-16.04.4-desktop-i386.iso) on Acer Aspire One notebook that already had Ubuntu 14.04 installed. On booting from the prepared USB drive, Xubuntu does start after the following 2 errors are displayed briefly while booting:
[ 0.108721] ACPI Error : [CAPB] Namespace lookup failure, AE_ALREADY_EXISTS (20170531/dsfield-211) [ 0.108798] ACPI Error : Method parse/execution failed /_SB.PCI0._OSC, AE_ALREADY_EXISTS (20170531/psparse-550)
(I'm really hoping this means something to someone as it doesn't mean anything to me!)
These errors are displayed for only 30 seconds or so then the install seems to run fine and I get the "install completed. Please restart" message, however after restarting, the screen shows only part of the desktop!
The screen is mostly black except for a strip down the right side that is normal i.e. the top right corner shows the battery state icon, connection, volume and date/time and everything below is the normal blue desktop! The right-click menu is there but if the actions work they are largely or completely invisible i.e. in the black part of the screen.
I have tried installing repeatedly but with the same result. I have run the disk checking utility on the installation menu which reports everything OK.
I think the problem may be that I removed the USB before being prompted on the restart so it may have corrupted something. Is there a way I can reformat the hard disk or something before installing?
Please let me know what has to be done to fix this as I am really taken with Xubuntu.