DVi Issues with x800 XL - wont boot

tamed_g · May 8, 2005, 04:19 PM

I just bought an x800 XL to replace my aging 9700 pro and everything seemed fine the first day, installed the latest Cats from Ati web site and got stuck into some Half Life 2 on my regular VGA flat panel monitor with it mirrored on my DLP projector which is plugged in to the DV-i port with a DV-i cable.

Then something changed.

Now whenever I try and boot the computer I get no signal to either the VGA monitor or the DVi Projector when they are both plugged in and the computer just hangs, doesn't even make it to bios. If I unplug the DVi cable everything works fine.

After booting into windows I can plug the DVi back in and get it working but the card automatically gives all priority to the DVi device letting it govern what resolutions are available in clone mode even though I had my VGA monitor set as primary. I want my Dv-i to clone the VGA governred settings, not the other way around.

So it seems that whenever the DVi is plugged in, the card is deciding at a firmware or a hardware level that DVi gets priority and yet isn't communicating properly and managing to sync with the device on boot causing the card to transmit a signal that is out of range for both the projector and monitor.

Any suggestions on how to fix this?

cswiger · May 10, 2005, 01:08 PM

I've been seeing problems which sound similiar to this one; I've been getting "blank screen with no signal" when I switched between displays on a dual-headed display. If I just have the CRT connected, things seem to be fine, but I've also noticed that having a LCD connected seems to affect what modes and resolutions the CRT is willing to display, even when I am using the CRT alone...

redsolar · May 10, 2005, 04:14 PM

Welcome to the forums

This is quite interesting, since VGA port should be given preference over DVI if there is a device attached to it on boot. It sounds like your best choice is to stick with unplugged DVI cable and plug it in when necessary only. There may be a compatibility issue.

If you have a chance to try a different DVI cable, I would try that as well, just to eliminate a faulty cable problem.

tamed_g · May 10, 2005, 09:50 PM

Managed to sort it out in the end by clearing the CMOS on the mobo - seems something must have gotten 'stuck' in the card settings and bios - any hoooo, that did the trick and the card isplaying much nicer now.

May 8, 2005, 04:19 PM	#1
tamed_g DriverHeaven Newbie Join Date: May 2005 Posts: 18 Rep Power: 0	DVi Issues with x800 XL - wont boot I just bought an x800 XL to replace my aging 9700 pro and everything seemed fine the first day, installed the latest Cats from Ati web site and got stuck into some Half Life 2 on my regular VGA flat panel monitor with it mirrored on my DLP projector which is plugged in to the DV-i port with a DV-i cable. Then something changed. Now whenever I try and boot the computer I get no signal to either the VGA monitor or the DVi Projector when they are both plugged in and the computer just hangs, doesn't even make it to bios. If I unplug the DVi cable everything works fine. After booting into windows I can plug the DVi back in and get it working but the card automatically gives all priority to the DVi device letting it govern what resolutions are available in clone mode even though I had my VGA monitor set as primary. I want my Dv-i to clone the VGA governred settings, not the other way around. So it seems that whenever the DVi is plugged in, the card is deciding at a firmware or a hardware level that DVi gets priority and yet isn't communicating properly and managing to sync with the device on boot causing the card to transmit a signal that is out of range for both the projector and monitor. Any suggestions on how to fix this?

May 10, 2005, 01:08 PM	#2
cswiger DriverHeaven Addict Join Date: Nov 2004 Location: NYC Posts: 233 Rep Power: 0	I've been seeing problems which sound similiar to this one; I've been getting "blank screen with no signal" when I switched between displays on a dual-headed display. If I just have the CRT connected, things seem to be fine, but I've also noticed that having a LCD connected seems to affect what modes and resolutions the CRT is willing to display, even when I am using the CRT alone... __________________ Do you remember Shalebridge Cradle? Beware! The Cradle doesn't forget.... AMD Opteron 185 @ 2.6GHz/200HTT \| 2GB G.Skill DDR3200 @ 2-3-2-5/1T \| 512MB eVGA 8800GT @ 600/1800 \| SB Audigy 2ZS eX, Outlaw 1050 6.1ch amp, Paradigm speakers \| MSI K8N Diamond Plus mainboard \| black Lian-Li USB68 case + Foxconn FX600-GLN 600W PSU \| 2xWDC3200AAKS (RAID1) \| Sony GDM-F500R CRT, BENQ G2400W LCD

May 10, 2005, 04:14 PM	#3
redsolar Off duty Join Date: Jul 2003 Location: Las Vegas, USA Posts: 1,242 Rep Power: 0 System Specs	Welcome to the forums This is quite interesting, since VGA port should be given preference over DVI if there is a device attached to it on boot. It sounds like your best choice is to stick with unplugged DVI cable and plug it in when necessary only. There may be a compatibility issue. If you have a chance to try a different DVI cable, I would try that as well, just to eliminate a faulty cable problem. __________________ Real_Men_Do_Not_Use_Space_Bar Main rig: Intel Core i7 930 @ 4.0 Ghz \| Corsair H50 Push/Pull \| 12GB OCZ DDR3 \| ASUS Radeon HD 5850 \| 3x 1TB Samsung F3 RAID5 on Dell PERC 5i SAS + 1TB Hitachi \| MSI X58 Pro-e \| 850W Antec Truepower Quattro \| RocketFish by Lian Li Full Tower Case \| Gateway XHD3000 30" LCD \| Dell 2408WFP 24" LCD \| Dell 2407WFP 24" LCD \| Logitech Z-5500 Speakers \| Windows 7 Ultimate x64 Laptop: Samsung x360-34P \| Core 2 Duo SU9400 1.4 GHz \| 4GB DDR3 \| 128GB Samsung SSD \| Intel 4500M w/ HDMI \| WiFi \| Bluetooth \| 13.3" WLED 1280x800 \| Windows 7 Professional x64

May 10, 2005, 09:50 PM	Thread Starter #4
tamed_g DriverHeaven Newbie Join Date: May 2005 Posts: 18 Rep Power: 0	Managed to sort it out in the end by clearing the CMOS on the mobo - seems something must have gotten 'stuck' in the card settings and bios - any hoooo, that did the trick and the card isplaying much nicer now.