Intel: Starting X on HDMI with no display/Onkyo Receiver

Jin, Gordon gordon.jin at
Mon Sep 15 06:30:54 PDT 2008

1) bug#14611.
2) Similar to bug#14630? I'm not sure which version shipped in Fedora 9
If you find any issue with the latest release (2.4 or 2.5-branch) or git
driver, please file a bug according to Better use
direct TV connection (than through receiver) for the bug reporting.


From: xorg-bounces at
[mailto:xorg-bounces at] On Behalf Of Larry T
Sent: Friday, September 05, 2008 6:01 PM
To: xorg freedektop
Subject: Intel: Starting X on HDMI with no display/Onkyo Receiver

I am trying to set up a Shuttle SG33G5 using onboard video on Fedora
Core 9. It uses the following Intel graphics processor:
(lspci) Intel Corporation 82G33/G31 Express Integrated Graphics
Controller (rev 02)
(xorg log) (II) intel(0): Integrated Graphics Chipset: Intel(R) G33

1) I seem unable to make X start without a connection present (with the
receiver powered off vs no cable plugged in appears to be functionally
equivalent cases). In my nvidia system, I could force it with a
ConnectedMonitor line in my xorg.conf. I seem to be able to get to a
similar point but the resulting xorg.conf messages indicate no modes
despite specifying them in the xorg.conf:
(II) intel(0): Output TMDS-1 enabled by config file
(WW) intel(0): Unable to find initial modes
(EE) intel(0): Output TMDS-1 enabled but has no modes
(EE) intel(0): No valid modes.
(EE) Screen(s) found, but none have a usable configuration.

Is there any way to force X to come up with a mode even if no connection
is present with the intel drivers? 

2) I am trying to connect it to an Onkyo 805 receiver via HDMI. The
display passes through fine in the BIOS and Linux text mode. However, as
soon as X takes control, the receiver reports no signal. If I move the
HDMI plug directly to my TV at this point, I see the display. From the
xorg.conf messages, everything appears to be functional. Has anybody
made this connection work? As a point of reference, I have other HDMI
inputs to the same receiver that work including an Nvidia graphics based
Linux system so I think the receiver hardware and Linux-based computers
in general are absolved. 

Thanks for any help,

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