Go Back   nV News Forums > Linux Support Forums > NVIDIA Linux

Newegg Daily Deals

Reply
 
Thread Tools
Old 11-30-09, 08:47 AM   #1
cgsexton
Registered User
 
Join Date: Nov 2009
Posts: 4
Default dual monitor order swapped in twinview setup

I'm running into an odd issue regarding display order in X11. The displays may be off when the machine boots (and at least one of the displays will likely be going through a video switcher that may/may not be able to properly report the EDID anyways), so I've added stuff to ignore the EDID. All of that seems to work great - if one of the monitors is off, order is kept and it works as expected when the monitor is turned on. The BIOS post shows up on the display plugged into the DVI-I connection marked "1" on the back of the card, so at that level, it appears to be choosing the correct primary display (the secondary doesn't show anything at boot, which is fine).

However, once X11 starts up, the display order gets flipped and what should be CRT-0 is really CRT-1, and vice versa. I can modify the behavior by swapping CRT-1 and CRT-0 information for twinview (making CRT-0 +1600+0 instead of +0+0), but I don't have confidence that if it goes into a different switcher or a slightly different setup that it won't swap again. It seems that whatever the BIOS picks up as the primary display should be the lowest ordered monitor detected, but when X runs, that doesn't seem to be the case - it seems to be somewhat arbitrary.

Can anyone shed any light on this behavior or lend any advice on how to get the required behavior?

The setup is as follows:

Card: eVGA branded GTX 285
Monitors: 2 identical VGA
Driver: 185.18.36

Attached is the nvidia-bug-report.log, run with logverbose 6.
Attached Files
File Type: zip nvidia-bug-report.zip (53.9 KB, 111 views)
cgsexton is offline   Reply With Quote
Old 12-22-09, 12:25 PM   #2
cgsexton
Registered User
 
Join Date: Nov 2009
Posts: 4
Default Re: dual monitor order swapped in twinview setup

BTTT .. still have the issue, haven't had any luck with nVidia tech support either.
cgsexton is offline   Reply With Quote
Old 12-28-09, 08:27 AM   #3
cgsexton
Registered User
 
Join Date: Nov 2009
Posts: 4
Default Re: dual monitor order swapped in twinview setup

BTTT
cgsexton is offline   Reply With Quote
Old 01-22-10, 08:06 AM   #4
cgsexton
Registered User
 
Join Date: Nov 2009
Posts: 4
Default Re: dual monitor order swapped in twinview setup

BTTT
cgsexton is offline   Reply With Quote
Old 01-22-10, 10:49 AM   #5
onxeur
Registered User
 
Join Date: Mar 2005
Posts: 5
Default Re: dual monitor order swapped in twinview setup

I have the same problem with an EVGA GTX 285 and 2 DFPs. The workaround is to add the following to the Device or Screen sections in xorg.conf:

Code:
"TwinViewXineramaInfoOrder" "CRT-1, CRT-0"
Or this for a single display:

Code:
"UseDisplayDevice"  "CRT-1"
onxeur is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 06:31 AM.


Powered by vBulletin® Version 3.7.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 1998 - 2014, nV News.