[Nix-dev] Intermittent Blank Screen upon Opening Laptop Lid

[Bjørn Forsman]

On 1 July 2016 at 15:10, Roger Qiu <roger.qiu at matrix.ai> wrote:
> Hi Nixers,
>
> I discovered this problem a while ago, basically upon closing the lid and
> reopening it after 10 min, the screen stays blank, and I can't do anything.
> Even switching to tty1 doesn't work.
>
> This doesn't always happen. And when I close the lid and reopen after a few
> seconds, it usually works and displays something.
>
> What are the steps that I can take to debug this issue.
>
> It was happening back on NixOS 15.09. and is continuing on 16.03.
>
> I'm running NVIDIA and using NVIDIA video card driver.

Did you check the system log?

- Bjørn