LinHES Forums :: View topic - DVI/HDMI and MythWelcome

Option "ConnectedMonitor" "string"

Allows you to override what the NVIDIA kernel module detects is connected to your video card. This may be useful, for example, if you use a KVM (keyboard, video, mouse) switch and you are switched away when X is started. In such a situation, the NVIDIA kernel module cannot detect what display devices are connected, and the NVIDIA X driver assumes you have a single CRT.

Valid values for this option are "CRT" (cathode ray tube), "DFP" (digital flat panel), or "TV" (television); if using TwinView, this option may be a comma-separated list of display devices; e.g.: "CRT, CRT" or "CRT, DFP".

NOTE: anything attached to a 15 pin VGA connector is regarded by the driver as a CRT. "DFP" should only be used to refer to digital flat panels connected via a DVI port.

Default: string is NULL (the NVIDIA driver will detect the connected display devices).

Author:	jimdoc [ Sat Oct 25, 2008 7:05 pm ]
Post subject:	DVI/HDMI and MythWelcome
I'm running an NVidia 6200TC video card currently using VGA to my Samsung LCD TV. I've also used a DVI to HDMI cable successfully. The problem with the DVI->HDMI cable is that the TV must be on during PC boot-up for the connection to activate (or I need to restart X). The VGA connection just always works (if DVI isn't active). Since I'm using MythWelcome, the PC may be on or off when I want to use it. If it's already on, the DVI connection won't work (unless I restart X). I'd like to use the DVI->HDMI cable and leave the VGA for other use. Is there a way to force the DVI connection to be enabled even if the TV is off?

Author:	marc.aronson [ Sat Oct 25, 2008 11:30 pm ]
Post subject:
From the nvidia documentation: Quote: Option "ConnectedMonitor" "string" Allows you to override what the NVIDIA kernel module detects is connected to your video card. This may be useful, for example, if you use a KVM (keyboard, video, mouse) switch and you are switched away when X is started. In such a situation, the NVIDIA kernel module cannot detect what display devices are connected, and the NVIDIA X driver assumes you have a single CRT. Valid values for this option are "CRT" (cathode ray tube), "DFP" (digital flat panel), or "TV" (television); if using TwinView, this option may be a comma-separated list of display devices; e.g.: "CRT, CRT" or "CRT, DFP". NOTE: anything attached to a 15 pin VGA connector is regarded by the driver as a CRT. "DFP" should only be used to refer to digital flat panels connected via a DVI port. Default: string is NULL (the NVIDIA driver will detect the connected display devices). Marc

Author:	mad_paddler [ Sun Oct 26, 2008 4:51 am ]
Post subject:
I had a similar problem, but worked out its only a problem if my samsung TV is switched off at the wall. If it is left on standby my media center detects it fine. The TV uses <1w on standby so i just leave it on standby all the time.

Author:	jimdoc [ Sun Oct 26, 2008 8:46 am ]
Post subject:
Thanks! Code: Option "ConnectedMonitor" "DFP" Did the trick for me.

Author:	jimdoc [ Sun Oct 26, 2008 6:32 pm ]
Post subject:
Well I think I spoke too soon. It works properly on reboot, but on power-off/power-on as happens with MythWelcome, the DVI/HDMI connection is active, but with a screen resolution of 640x480. My Samsung is a 1080p set and I normally have the video output at 1920x1080@60Hz. This is how it's recognized via VGA or DVI/HDMI if the TV is on during boot (or when restarting X). What part of the xorg.conf affects this behavior?

LinHES Forums http://forums.linhes.org/

DVI/HDMI and MythWelcome http://forums.linhes.org/viewtopic.php?f=2&t=19142	Page 1 of 1

Page 1 of 1	All times are UTC - 6 hours
Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/