[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
Mon Feb 22 20:25:37 UTC 2016


--- Comment #204 from Justin Chevrier <jchevrier at gmail.com> ---
I have some HP T5550 (VX900) thin clients that used to previously work under
the 0.2.x branch, but stopped working under 0.3.x with the same issue described
in this bug (no displays are detected). This thin client has 2 DVI ports, a
DVI-I and a DVI-D. Up to this point no monitors are detected using either DVI
port with DVI cable or with a DVI-I to VGA adapter and connected via VGA cable.
The distribution I'm using for testing is Thinstation (5.3). 

I have pulled the latest code from GIT and have applied the latest VGA
detection patch ( attachment 121872 ) on top. I'm happy to report that with the
latest GIT pull and VGA patch applied the monitor is detected and functional
via VGA, but unfortunately not on either DVI port (the same monitor is used in
all tests). The driver has been built with debugging and via_regs_dump enabled.
I am attaching 3 logs.

DVI on the DVI-D port
DVI on the DVI-I port
VGA on the DVI-I port with VGA adapter

Keep me posted if I can assist further!

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