On Sat, Feb 24, 2018 at 8:20 AM, Steve Talbott
<[log in to unmask]> wrote:
> Miles O'Neal wrote:
>>
>> I would look into a new video driver. Which driver were you using?
>
> Nouveau, last updated a year ago in January. I have now found this in the
> 7.4 release notes (should have looked before!):
>
> "The default DDX driver has changed to be xf86-video-modesetting.
> The previous defaults were xf86-video-nouveau (Nvidia hardware)
> and xf86-video-intel (Intel hardware)."
>
> Sorry for my ignorance, but is there a way at the boot command to
> restore the old default? Or some other better approach?

Please bottom-post.

Not at boot but, if "xorg-x11-drv-intel-..." is still installed, you
can create an X snippet in "/etc/X11/xorg.conf.d/" to specify that
"intel_drv.so" be loaded.

FYI, Ubuntu switched almost two years ago. Post by maintainer:

https://tjaalton.wordpress.com/2016/07/23/intel-graphics-gen4-and-newer-now-defaults-to-modesetting-driver-on-x/