Wont boot into OS - Black screen with flashing dash

[MAFoElffen]

I traced the error in your last post as from kernel source file ../drivers/thermal/intel_soc_dts_thermal.c. I think the exception was thrown by this code:

if (err) {
-        pr_err("request_threaded_irq ret %d\n", err);
-        goto err_free;

That source file had to do with adding Intel Braswell CPU support (Intel HD grasphics) and APIC IRQ. So it seems like the error is from a modifiable trip from the Intel device driver helper files internal to the kernel.

You said this worked previously right? With the error you are getting and what this source file is about... I have a couple ideas for you to try.
1st-- Try adding "noapic" as a kernel boot option.
2d-- From the Grub Boot Menu, boot from a previous version kernel.

[joey_tbf]

Where exactly do i add "noapic"

vg-root ro quiet splash noapic $vt_handoff

Like that?

I booted from these 2 but the same problem occurs

[Bashing-om]

joey_tbf; Hey .

Thank goodness for Mike's coding skills !
Yes, you have the right of it to make the boot edit " vg-root ro quiet splash noapic $vt_handoff "
If that does not boot up then try to boot with the older kernel :
At the grub boot menu you arrow down to the entry of " with linux 3.16.0-38-generic" - an asterisk will be to the left of the enty -and press the enter key.

try try again

[joey_tbf]

I tried noapic and different kernal's but still get a black screen.

[Bashing-om]

joey_tbf; Well ..

2 steps forward and 3 back . We really need to see these logs. Presently I can not fathom why 'pastebinit' is not found to be able to install it.

Lets make sure the system is up to date and the package manager is in a happy state.
Boot back to terminal ( text in grub boot parameter) and run terminal commands:

sudo apt-get update
sudo apt-get upgrade

If that completes with no errors we proceed on and try once more to install pastebinit:

sudo apt-get install pastebinit

gotta be a reason; gotta be a cause

[joey_tbf]

It worked!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

http://paste.ubuntu.com/11771601
http://paste.ubuntu.com/11771604

[Bashing-om]

joey_tbf; Hey, Hey !

Persistence do pay off !

OK, now we know the reason, but it is presently over my skill set to know the cause .
When it is all said and done by the operating system:

125.691] (EE) Failed to load module "vesa" (module does not exist, 0)
[ 125.691] (EE) No drivers available.

we wind up with an inability to load any graphics drivers . I have no experience with the Intel chip set so I have to do some home work to find out how to find out what is not taking place.

Maybe just as simple as (RE-)installing xserver-xorg (-core) components ??

I will be back.

inquiring minds want to know

[Bashing-om]

joey_tbf; Welp ....

In light of the fact no one else has a better idea, let's (RE-)install some xorg components.

sudo apt-get install --reinstall xserver-xorg-core xserver-xorg-video-intel libgl1-mesa-glx libgl1-mesa-dri 
sudo dpkg-reconfigure xserver-xorg 
sudo shutdown -r now

Do you now come back up with a functional GUI ?

It could happen

[joey_tbf]

It did not work.

I got an error message with the first command

Something about unmet dependiences

[joey_tbf]

What happens if i upgrade? Maybe it will re-install the files

I will try this:
do-release-upgrade