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

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91966

--- Comment #128 from Kevin Brace <kevinbrace at gmx.com> ---
Created attachment 121089
  --> https://bugs.freedesktop.org/attachment.cgi?id=121089&action=edit
Using I2C bus 2 to also detect a VGA monitor

Previously, it was assumed that only I2C bus 1 was used to detect a VGA
monitor. However, devices with a DVI-I connector do have VGA signals
come out of the connector, but in many VIA Technologies chipsets, the
I2C bus 2 is typically used to detect a DVI monitor. Therefore, I2C bus 2
also needs to be used to detect a VGA monitor.

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