[Openchrome-devel] [Bug 91966] No signal to monitor with X and openchrome using VX855 chipset graphics

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Feb 25 14:12:46 UTC 2016


--- Comment #227 from Justin Chevrier <jchevrier at gmail.com> ---
(In reply to Kevin Brace from comment #226)
> I know you reported to me that VGA coming out of DVI to VGA adapter was not
> working, but can it be a situation where you have to manually switch to the
> other signal source?
> A typical monitor with 2 or more monitor interfaces typically have a button
> that allows you to switch this.

That is a fair question, but I can confirm that the monitor was set to the
right input type (VGA). The reason I'm 100% confident is that when transferring
the Xorg.0.log file from the thin client to my workstation I switch to another
VT on the thin client (the VGA port comes back when switching to another VT)
and I transfer from the thin client. I do this each time I get a log. In
addition, when testing each patch I ensure only one cable (DVI or VGA) is
connected to the thin client at a time.

An additional point that may be relevant is that when in this state (EDID is
detected but nothing is displayed on the VGA port) the monitor detects an input
signal (aka it doesn't go into power saving), but it's just a blank screen.

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