My 18.10 installation started to freeze a few days ago and strangely, even reverting to trusty 18.04 did not help. I am submitting this from Windoze and feel defeated.
After reinstall of 18.10 the system freezes within 10 seconds to a minute, from dmesg:
kernel: [ 54.156332] [drm:intel_pipe_update_end [i915]] *ERROR* Atomic update failure on pipe B (start=3401 end=3402) time 379 us, min 1192, max 1199, scanline start 1191, end 1217
Before the freeze I can use a terminal, but
sudo ls
takes several seconds, and as soon as I open Firefox the FF icon gets bigger and bang the system freezes, same for typing into the super-key window after a few letters.same with Xorg and nvidia driver
following https://www.dedoimedo.com/computers/intel-microcode-atomic-update.html I added /etc/modprobe.d/i915.conf containing
options i915 enable_psr=0
This really seemed to help for a few minutes... but then the system froze again.
I reverted back to 18.04, which had worked for many months, but could not install a working system this time. After the boot message it went into
Emergency mode
withtpm_crb MSFT0101:00 [Firmware Bug]: ACPI region does not cover the entire command/response buffer.
- Adding
acpi_os=!
to the boot loader does not help. - I have the latest BIOS installed with fastboot off.
- Live USB 18.04 and 18.10 boot fine.
- In desperation I disabled secure boot half way through my trouble, as I received
PKCS#7 signature
errors; not sure how relevant this could be. Troubleshooting above is with secure boot off and updates installed.
Please help as I am submitting this from Windoze ...)
Could be an installer bug
How to work around:
During install disable network and disable any update of drivers and software.
Upon restart the graphics will freeze again, but recovery options do work this time.
Plug in LAN cable, start in recovery mode, enable networking, then drop into root.
See Ubuntu Linux Install Nvidia Driver (Latest Proprietary Driver).
Now graphics will work. I then switched to using the NVIDIA driver using "Software & Updates":
My issue and a solution is also described here.