If I power down my laptop via the usual KStart->Shutdown means, it
can
take up to 4 restart attempts before it fully boots.
That sounds like wonky hardware
It has no problem launching grub and the kernel selection screen.
That
it does reliably every time. After that, there are issues.
If it launches grub the disk is fine (Grub is loaded off the disk) and I
assume the laptop has one disk.
Twice I will get a back screen with a flashing cursor. Then I will
get
an ehci -19 error. Then it will boot properly.
The EHCI error is from USB so perhaps points to a USB problem.
Is anyone else experiencing a problem booting ? Does this sound
like a
kernel problem or is my hard drive failing ?
If a soft reboot fails but a hard reboot (reset button held down) works
I'd suspect its something hardware related not getting properly
shutdown/restarting etc.
For diagnostics boot with "verbose norhgb" that should spew lots of
messages and not hide it all with the graphical stuff - meaning you can
actually see what is going on. See where that hangs.
You could also see if reboot=acpi helps. That changes the way the reboot
is done and might be better for modern machines. Len Brown is currently
collecting data on making this a default so your box may be a useful data
point.