[Openchrome-devel] [Bug 94277] driver does not detect VGA monitor, but there is one

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Feb 25 08:54:01 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=94277

--- Comment #4 from Benno Schulenberg <bensberg at justemail.net> ---

Hi Kevin,

(In reply to Kevin Brace from comment #3)
> I read the log, and I am starting to think that maybe the VGA connector's
> I2C bus is connected to I2C bus 2.
> I just uploaded a patch I originally uploaded for Bug 91966.
> If the patch works, then it confirms my hypothesis.

After reverting my "patch", appllying yours, making, installing, and
rebooting...  Alas, no luck.  Still no picture.  :(  Full log is attached. 
Here the relevant fragment:

[    22.848] (--) CHROME(0): Probing for a VGA monitor on I2C Bus 1.
[    22.848] (II) CHROME(0): I2C device "I2C Bus 1:ddc2" registered at address
0xA0.
[    22.855] (--) CHROME(0): Probing for a VGA monitor on I2C Bus 2.
[    22.855] (II) CHROME(0): I2C device "I2C Bus 2:ddc2" registered at address
0xA0.
[    22.858] (--) CHROME(0): Did not detect a VGA monitor on I2C Bus 1 or I2C
Bus 2.
[    22.858] (--) CHROME(0): Now perform manual detection of a VGA monitor.
[    22.858] (II) CHROME(0): EDID for output VGA-1
[    22.858] (II) CHROME(0): Output VGA-1 disconnected
[    22.858] (WW) CHROME(0): No outputs definitely connected, trying again...
[    22.858] (II) CHROME(0): Output VGA-1 disconnected
[    22.858] (WW) CHROME(0): Unable to find connected outputs

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