Multi-head intel and nvidia configuration fails 100%

[flashl at dailybrood.com]

On 2013-12-08 09:48, flashl at dailybrood.com wrote:
> On 2013-12-08 08:59, Felix Miata wrote:
>> On 2013-12-08 07:55 (GMT-0500) flashl at dailybrood.com composed:
>> 
>>> I'm using latest drivers: xorg-x11-drv-intel (2.21.15-5.fc20) and
>>> xorg-x11-drv-nouveau (1:1.0.9-2.fc20) on a host with gpus: Integrated
>>> Graphics Chipset: Intel(R) HD Graphics 4000 and Nvidia geforce 9500GT
>>> Chipset: "NVIDIA NV96".
>> 
>>> An empty xorg.conf and xorg.conf.d directory will fail 100%.  Only a
>>> standalone intel or nouveau conf file in /etc/X11/xorg.conf.d 
>>> directory
>> 
>> In my experience, 50-device.conf is not enough. I've always needed
>> coordinated 50-monitor.conf and 50-screen.conf files as well.
>> 
>>> will successfully present a Gnome login screen.  I've tested various
>>> conf files using different scenarios and also submitted abrt reports
>>> since Graphics Test week.
>> 
>>> I'm a willing labrat if anyone got any suggestions.
>> 
>> I'm not sure I know what 100% failure means. Are you getting no output
>> from either nv or intel if attempting to have both configured via
>> xorg.conf*? Even on the ttys and booting with 3 on cmdline, then using
>> startx after login? Did it work OK with F19? Have disabling plymouth
>> and/or unquieting boot been tried? Is behavior entirely using DVI, or
>> VGA, or only a certain mix? Do your displays have both
>> DVI/HDMI/Displayport and VGA inputs available for trying different
>> combinations? Have you tried all (4? 6?) BIOS PEG/PCI settings?
>> 
>> One of my test systems has 4000 DVI and VGA on the motherboard, and I
>> have a dual DVI out GT8400 I install in its PCIe slot as testing
>> circumstances require, so later or tomorrow I could try what you've
>> tried here to see if I get matching behavior, or better (except I only
>> use KDM, which may or may not make any difference).
>> --
>> "The wise are known for their understanding, and pleasant
>> words are persuasive." Proverbs 16:21 (New Living Translation)
>> 
>>  Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
>> 
>> Felix Miata  ***  http://fm.no-ip.com/
> 
> Multi-head configuration worked fine on F19 IIRC without conf files.
> 100% failure = no output display and means Gnome segfaults or will
> complain when booting system without xorg.conf or using individual
> intel and nv conf files or intel+nv combined in one conf file. When
> using intel+nv conf in any combination Xorg.log reports adding gpus,
> monitors, devices, screens, and layout but ends with NouveauLeave VT.
> When muti-head is configured booting into 3 and using tty commandline
> startx still fails. NV is using DVI+VGA and Intel is currently using
> HDMI1.  Other inputs available on Intel with test HDMI2 and VGA.
> Also, somewhere along the way toggled PEG/IGD in bios, may need to
> revisit. Observed no changed in behavior when booting unquiet. Thought
> I may need to mention, dmesg reports "fb: conflicting fb hw usage
> inteldrmfb vs EFI VGA - removing generic driver" since reading about
> efi boot and odd hw behaviors in another discussion, could efi boot
> cause this problem?
> 
> Thanks for response.
> Flash

Thanks Felix. I'm happy to report changing bios settings on MB: AMI 
Z77A-G43 (MS-7758)) to PEG+IGD Multi-Monitor appears to treat nv gpu as 
master which solves my problem.

Thanks again.
Flash