I have two old Dell computers which experience a problem similar to what Michael describes. They work fine at Linux 4.15.0-47 but at 4.15.0-48 they show a corrupted display while booting. I can revert to 4.15.0-47 and await a fix.
I will attach the output file of ubuntu-bug made in 4.15.0-48 recovery mode.
I have two old Dell computers which experience a problem similar to what Michael describes. They work fine at Linux 4.15.0-47 but at 4.15.0-48 they show a corrupted display while booting. I can revert to 4.15.0-47 and await a fix.
I will attach the output file of ubuntu-bug made in 4.15.0-48 recovery mode.