Ubuntu
gdm3 package

  1. Bug #1706474
  2. Comment #16

Comment 16 for bug 1706474

Revision history for this message
Tim Richardson (tim-richardson) wrote : Re: [Bug 1706474] Re: gdm3 nvidia modeset=1 is broken, external screens don't work

HI Doug, it could be hardware dependent although my two Optimus laptops are
very mainstream (both Quadro). It's more likely to be configuration (I hope)
How do you achieve modeset=1? How do you confirm that you have Prime Sync
working? I use xrandr --verbose | grep PRIME

regards

Tim

On 27 August 2017 at 00:19, Doug McMahon <email address hidden> wrote:

> As far as hybrid (optimus) machines maybe this is hardware dependent?
> On all mine (660m, 775m, 940m) nvidia modeset=1 & Prime Synchronization
> work just fine, 16.04.3 thru 17.10.
> In 16.04.3 obviously using lightdm, in 17.10 using gdm3.
>
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> Title:
> gdm3 nvidia modeset=1 is broken, external screens don't work
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--
Tim Richardson