[Bug 45336] [i915] Intel AMT kvm-over-ip screen remains blank on headless sytems

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=45336

--- Comment #11 from Dmitrii S. <fw.dmitry at yandex.ru> ---
(In reply to Jesse Barnes from comment #6)
> sorry didn't mean to close, please let me know if the video= thing works for
> you.

'nomodeset' and 'i915.modeset=0' had a strange effect for me: even with monitor
connected the last thing I had shown on the monitor was the splash screen. I
suspect this is because latest systems require KMS to be enabled.

Adding 'video=VGA-1:1280x1024 at 60me' helped and I got no black screen. 'e'
option is mandatory here since it forces the system into thinking that there is
a valid VGA signal coming from the monitor even if it isn't (the kernel.org doc
for the video option is here
https://www.kernel.org/doc/Documentation/fb/modedb.txt).

So my boot options line in /etc/default/grub looks like this now (don't forget
to run sudo update-grub if you are on ubuntu or debian and want to reproduce)
GRUB_CMDLINE_LINUX_DEFAULT="video=VGA-1:1280x1024 at 60me"

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