Having a blank screen after grub. Able to boot with nomodeset. journalctl -b-1
shows session before failed session. I think this is not backlight problem. I also tried to play sound on hotkey and it didn't work. Neither osi_acpi=
.
Having nomodeset, system boots but I get X session and software rasterizer llvmpipe.
My questions are:
- am I able to see any log before kernel ring buffer is flushed to
/var/log/kern.log
(this log doesn't seem to contain any messages from failed boot, so I suppose that the fail happens earlier) - am I having X session because wayland does not work with nomodeset? I have read some comments that the Wayland should not work without kms.
- If I'm stuck with nomodeset and Xorg, can it be possible to setup Xorg to use the intel graphics driver? (I have read the comment that intel video driver does not work without kms somewhere in the internet, is it possible true?)
P.S.: this laptop comes with preinstalled Ubuntu 14.04 but it failed to open user session after software updates.
P.P.S.: I'm some kind of new to linux troubleshooting so I please to leave comment on what additional info and how should be retrieved.