LinuxQuestions.org
Review your favorite Linux distribution.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 08-21-2009, 09:47 AM   #1
i92guboj
Gentoo support team
 
Registered: May 2008
Location: Lucena, Córdoba (Spain)
Distribution: Gentoo
Posts: 4,083

Rep: Reputation: 405Reputation: 405Reputation: 405Reputation: 405Reputation: 405
fglrx, updated from 9.6 to 9.8 and dual head stopped working


Hello,

I am an -unhappy- ati/fglrx user, this is my video chip:

Code:
# lspci|grep -i vga
01:00.0 VGA compatible controller: ATI Technologies Inc RV630 PRO AGP [Radeon HD 2600 PRO AGP]
I was using dual head with fglrx 9.6 in Gentoo, and my kernel was starting to age more than I'd like, because fglrx 9.6 doesn't support linux >= 2.6.29. So didn't 9.7 either.

Recently 9.8 has come out, and it is updated for kernels up to 2.6.30.x, however, the new fglrx version seems not to like my dual head setup, and I can't really figure what the problem is. I wonder if I will ever be able to use fglrx without problems, the ati driver really sucks.

When I fire up X, my second monitor goes into standby mode, and remains so until I shut down X again. In console mode, both works ok. The main monitor works perfectly, however I need both of them to work.

This is the log: http://pastebin.ca/1537742

There are some really weird things, though the logs for fglrx always seemed weird to me, however it worked with 9.6. For example, in the log you can read this:

Code:
(II) fglrx(0): End of Display1 EDID data --------------------
(II) fglrx(0): Connected Display2: CRT on secondary DAC [crt2]
(II) fglrx(0): Display2: is disabled by configuration
(II) fglrx(0):  Display2: No EDID information from DDC.
(EE) fglrx(0): Unknown EDID version 0
(II) fglrx(0):  Display2: Failed to get EDID information.
(II) fglrx(0): Output DFP1 using monitor section aticonfig-Monitor[0]-0
(II) fglrx(0): Output DFP2 has no monitor section
(II) fglrx(0): Output CRT1 has no monitor section
(II) fglrx(0): Output CRT2 has no monitor section
(II) fglrx(0): Output COMPONENT_VIDEO has no monitor section
(II) fglrx(0): Output DFP1 disconnected
(II) fglrx(0): Output DFP2 disconnected
(II) fglrx(0): Output CRT1 connected
(II) fglrx(0): Output CRT2 disconnected
(II) fglrx(0): Output COMPONENT_VIDEO disconnected
This stupid driver is telling me that it can't get the EDID from my second monitor. I have two monitor section but for some reason it can't use the second one (why? no idea), then it tells me that my second monitor is not connected. My card has an vga and a digital connector, each monitor is attached to one of them. My main monitor is a philips 109E5, and the other one is an acer x203w, which is attached to the dfp connector but using an adapter (the monitor only includes an vga cable). I wonder if that's a problem (though as I previously said, it worked perfect with catalyst 9.6.

This is my xorg.conf: http://pastebin.ca/1537752

If you need anything else, just let me know. Please, don't suggest to use radeon of radeonhd instead. I need 3d for many things, and I have some other problems with the free drivers which makes them even worse than this (not even 2d acceleration and no xv either, which in turn makes them unusable, and some other things).

Thank you in advance for any pointers. I'll continue trying nonetheless.
 
Old 08-22-2009, 09:52 PM   #2
anon099
Member
 
Registered: Oct 2002
Posts: 188

Rep: Reputation: Disabled
ya... i won't tell you not to use the proprietary driver. i want to. but i won't. i would tell you to buy a supported x1950 or something similar for 90 bucks. because i do that. and i haven't even thought about video cards since i put my system together a month ago. but again. i won't do that cause you asked me not to. Anyhow, the EDID is a big red flag to me.

from what i know (and i don't know a lot about this) edid has to do with autodiscover of the monitor. this is failing. so i'm guessing you will have to disable edid on that monitor and do it manually. from experience if edid fails x fails. google 'edid xorg' will get you on your way i hope. good luck.

hint:

Code:
Option "IgnoreEDID" "1"

Last edited by anon099; 08-22-2009 at 09:54 PM.
 
Old 08-22-2009, 10:00 PM   #3
i92guboj
Gentoo support team
 
Registered: May 2008
Location: Lucena, Córdoba (Spain)
Distribution: Gentoo
Posts: 4,083

Original Poster
Rep: Reputation: 405Reputation: 405Reputation: 405Reputation: 405Reputation: 405
I understand that, and I thought about it as well. However, the log for 9.6 is exactly the same in that regard (using it right now).

Code:
(II) fglrx(0): Connected Display2: CRT on secondary DAC [crt2]
(II) fglrx(0):  Display2: No EDID information from DDC.
(EE) fglrx(0): Unknown EDID version 0 
(II) fglrx(0):  Display2: Failed to get EDID information.
(II) fglrx(0): Output COMPONENT_VIDEO using monitor section aticonfig-Monitor[0]-0
(II) fglrx(0): Output TV has no monitor section
(II) fglrx(0): Output CRT2 has no monitor section
(II) fglrx(0): Output CRT1 has no monitor section
(II) fglrx(0): Output DFP2 has no monitor section
(II) fglrx(0): Output DFP1 has no monitor section
(II) fglrx(0): Output COMPONENT_VIDEO disconnected
(II) fglrx(0): Output TV disconnected
(II) fglrx(0): Output CRT2 disconnected
(II) fglrx(0): Output CRT1 connected
(II) fglrx(0): Output DFP2 disconnected
(II) fglrx(0): Output DFP1 disconnected
As you see, it's mostly the same. With the exception that this version of the driver works without a hitch. If I could report this regression it would at least have a chance to get fixed, but since they don't have a bug tracker I guess that my options are to stay with 9.6 forever (and kernel 2.6.28 of course) or to completely burn my computer and buy a new one (luck finding agp cards these days). ATI really piss me off.

But enough ranting. Thanks for taking the time to respond.
 
Old 08-22-2009, 10:08 PM   #4
anon099
Member
 
Registered: Oct 2002
Posts: 188

Rep: Reputation: Disabled
ok this isn't too encouraging but..

http://www.rage3d.com/board/showthread.php?t=33868256

Last edited by anon099; 08-22-2009 at 10:12 PM.
 
Old 08-22-2009, 10:11 PM   #5
anon099
Member
 
Registered: Oct 2002
Posts: 188

Rep: Reputation: Disabled
Ok, this isn't too encouraging but i got some hints.

http://www.rage3d.com/board/showthread.php?t=33868256
 
Old 08-22-2009, 10:12 PM   #6
anon099
Member
 
Registered: Oct 2002
Posts: 188

Rep: Reputation: Disabled
wtf... forum bug?
 
Old 08-22-2009, 10:30 PM   #7
i92guboj
Gentoo support team
 
Registered: May 2008
Location: Lucena, Córdoba (Spain)
Distribution: Gentoo
Posts: 4,083

Original Poster
Rep: Reputation: 405Reputation: 405Reputation: 405Reputation: 405Reputation: 405
I've noticed that line about my second display being turned off in my config. I have no idea absolutely what it means, it's just nonsense as most of the ati logs speech. I've looked in that direction amongst many others but didn't make anything clear of it. However that forum that you pointed seems interesting, though a bit dated. I'd look around, hopefully I will find something, if not in that thread somewhere else in there.

Thanks again for taking your time to read and answer, it's really much appreciated, more taking into account that the official support for ati is non-existant.
 
Old 09-10-2009, 09:16 AM   #8
i92guboj
Gentoo support team
 
Registered: May 2008
Location: Lucena, Córdoba (Spain)
Distribution: Gentoo
Posts: 4,083

Original Poster
Rep: Reputation: 405Reputation: 405Reputation: 405Reputation: 405Reputation: 405
Sorry for the delay, just for the record, 9.7 changed to randr by default, breaking my configuration. I disabled xrandr completely and all works again with 9.7 and above.

http://forums.gentoo.org/viewtopic-t...2-start-0.html
 
  


Reply



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 Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
dual-head support, radeon 300, fglrx noviciado Linux - Hardware 8 04-20-2009 03:28 PM
dual-head display not working rickbot Linux - Hardware 4 03-17-2007 04:43 PM
trying to get dual-head monitors working. poiuytrewq Linux - Hardware 4 03-29-2005 05:03 PM
Two video cards, dual head not working Arconis Linux - Newbie 2 02-01-2005 11:29 PM
Not understanding why dual head isnt working Wall Linux - Newbie 6 02-18-2004 12:00 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 06:40 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration