[Openchrome-devel] [Bug 94863] No signal at VGA (crt-tube) connected to DVI port of VX900

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Apr 8 03:59:06 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=94863

--- Comment #5 from Kevin Brace <kevinbrace at gmx.com> ---
Hi John,

I should not throw too many things at once, but several things we will need to
consider.

- Does your DVI to VGA adapter work with other computers? (I personally have
seen a faulty one at least once in my life.)
- Does straight DVI (native DVI) work? (with a different monitor, of course)
- Does the HP T5550 thin client have a setting in the BIOS setup related to CRT
/ DVI?


I think we can rule out VGA cable issues since CLE266, CN700, and VX800
chipsets does see the monitor (Model: a770) in question.
This problem appears to be I2C bus related issue since I2C bus 1 and 2 do not
see the monitor.
In the case of Frank's HP T510, it does see the VGA monitor via I2C bus.

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