Comment 14 for bug 1234429

Chris Hermansen (c-hermansen) wrote :

Christopher, based on your question, I added NOMODESET to /etc/default/grub definition of GRUB_CMDLINE_LINUX_DEFAULT, ran update-grub, and rebooted.

Short answer - it no longer provides any salubrious effect.

Long answer:

The system booted into stripey / herringbone display, though there were some pure-white patches interspersed with the herringbone pattern.

I closed the lid, waited a moment, and opened it, and the display appeared to be in a lower resolution mode. I logged in and checked; sure enough, it was in 1024 X 768 rather than 1280 X 800, and I could not select that higher resolution mode in screen settings - it was not offered. Also the video performance was v e r y s l o w.

So I removed the NOMODESET and rebooted. I guess today is a good day for rebooting as I did not get the herringbone / stripey pattern on this boot.

One other odd effect I have noticed.

If the system boots into SHM (stripey herringbone mode) and I correct it by closing the lid and reopening it again, subsequently after screen blanking the screen reappears in SHM. I don't recall this behaviour in the past.