[Bug 19943] HD3650: Output defaults to HDMI, can't switch to DVI

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Jun 6 05:33:33 PDT 2009


Ancoron <ancoron at chaoslayer.de> changed:

           What    |Removed                     |Added
  Attachment #25972|0                           |1
        is obsolete|                            |

--- Comment #17 from Ancoron <ancoron at chaoslayer.de>  2009-06-06 05:33:32 PST ---
Created an attachment (id=26489)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=26489)
Current xorg.conf for dual-head

(In reply to comment #16)
> Not sure.  Does the monitor provide an edid?  Is the driver able to get an edid
> from that monitor on the DVI port?  

Well, I tried and it doesn't. So the missing EDID dump is conpletely correct
here. :) Sorry, had thought about that option myself.

> Probably something in your config file.  Can you attach your current one?

As attached the current working xorg.conf where I don't specify HDMI-0 any
longer. The issue in the log where it says that HDMI-0 uses the "primary"
monitor section confuses me a bit as the card is supposed to either provide
output on HDMI or on the VGA not both at the same time and so the DVI connector
is the one that doesn't "share" with another connector. The port listing lists
the connectors correctly attached to their resources:

(II) RADEON(0): Port0:
  XRANDR name: HDMI-0
  Connector: HDMI-B
  DDC reg: 0x7e50
(II) RADEON(0): Port1:
  XRANDR name: VGA-0
  Connector: VGA
  DDC reg: 0x7e50              <-- same as Port0 (HDMI-0)
(II) RADEON(0): Port2:
  XRANDR name: DVI-0
  Connector: DVI-I
  DDC reg: 0x7e40

Or is it just a mistake in my interpretion of the driver output? I don't some
HDMI-capable display to test that issue here so I can't verify if the HDMI-0
output is working correctly.

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