Re: Screen goes blank for 1-2 seconds

[Tim Woodall <debianuser@woodall.me.uk>]

On Thu, 27 Jan 2022, Vincent Lefevre wrote:

> On 2022-01-27 11:41:44 +0100, Vincent Lefevre wrote:
> > On 2022-01-27 10:05:16 +0530, Pankaj Jangid wrote:
> > > Since I have setup a new hardware - x570 chipset, rx570 GPU - I am
> > > facing a very strange problem. The monitor goes blank for a brief time,
> > > like 1-2s and then comes back. It is connected with the GPU using HDMI
> > > cable.
> >
> > I had a similar problem in 2009 with a monitor connected via HDMI to
> > a Power Mac (not under Linux). This first happened from time to time,
> > then much more often, i.e. every day. IIRC, there was no issue when
> > later, this monitor was connected to a Debian laptop via VGA. I sold
> > the monitor to someone else (and told him about this problem), and he
> > confirmed the problem with his machine.
>
> And I had noted that plugging out then in again the HDMI cable on the
> monitor side was generally making the problem disappear for some time.

For a while I was using a mac (running macOS) plugged into a dock with
two HDMI screens connected and I was having this problem occasionally.
The mac was clearly thinking the screens had "gone away" because it
would move windows around. I've now switched to a windows laptop, same
dock, same cables, same monitors and the problem has gone away.