[systemd-devel] Alienware graphics amplifier scancodes

Greg KH greg at kroah.com
Thu May 28 11:46:55 PDT 2015

On Thu, May 28, 2015 at 01:25:58PM -0500, Mario Limonciello wrote:
> Yes, I'm aware that PCI hotplug support is in the kernel.  The kernel
> doesn't panic on the PCIe device being removed from the bus, but the
> graphics driver and X don't continue working.  What should you really do
> then?

Fix the drivers.

> You can ask AMD and NVIDIA to fix the drivers and work with the X
> guys to handle the scenario cleanly, but what does that even mean?

It means it gets fixed.

Why should your hardware be immune from this?  I have hardware right
here that does this properly, it's been working for many many years,
this isn't new at all.

> You
> can't guarantee that there is another GPU to display things on.

Yes you can.

> X's
> architecture isn't cut out for GPU's disappearing and reappearing.

Yes it is, this does work.

Please fix the drivers, that's the solution.

greg k-h

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