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Nick
Purveyor of common sense
Premium,VIP,MVM
join:2000-10-29
Smithtown, NY

Help with 3 monitors on 2 video cards (Intel 4000 & 560Ti)

I can't seem to get a particular configuration to behave well in Mint Linux 15.

I have 3 monitors ( all 1920x1200 resolution monitors)
U2413 connected to the Intel 4000
U2410 x 2 connected to the NVIDIA 560 Ti

In the BIOS the iGPU is initialized first and I can't change that. So when Mint Linux starts up, I only get a display on the Intel 4000 and nothing on 560Ti. Also, Cinnamon desktop crashes when I log in, and it goes to a failsafe mode of some kind.

Anyone have an idea where I should look first?
--
-Stupidity, like hydrogen, is one of the basic building blocks of the Universe.
-Insanity: doing the same thing over and over again and expecting different results.

Misc


BlitzenZeus
Burnt Out Cynic
Premium
join:2000-01-13
kudos:3

Do all the monitors work when you load from the live cd? I've noticed that Mint is more unstable with the video support after installation than Ubuntu. Also my bios will always use a monitor on my nvidia card over the onboard intel.

Even with that I still had annoying issues with the open source, and proprietary nvidia drivers using only my nvidia card. Some of the proprietary drivers did cause the same thing, it would only work in recovery mode, and the gui would be crashed on a normal boot.

While it doesn't help now, Ubuntu does seem to handle things better, and both Ubuntu and Mint are slated to have new releases soon. I really had to jerry rig in proprietary nvidia drivers for Mint 15 to get their full support, and in Ubuntu all I really had to do was add the xorg-edgers ppa, then install their latest nvidia drivers which worked perfectly. The same drivers that worked perfectly in Ubuntu caused the Mint gui to crash on normal startup.

So good luck, it's bad enough when you're just dealing with a nvidia card, but the combination of both might just be worse at least on Mint 15.
--
I distrust those people who know so well what god wants them to do because I notice it always coincides with their own desires- Susan B. Anthony
Yesterday we obeyed kings, and bent our necks before emperors. But today we kneel only to the truth- Kahlil G.



Nick
Purveyor of common sense
Premium,VIP,MVM
join:2000-10-29
Smithtown, NY

1 edit
reply to Nick

I do get all 3 monitors with Fedora Live CD...Didn't have much luck with Mint and Ubuntu.

For what it's worth, here's my xorg.conf

With this configuration, right now I have dual monitors working on the NVIDIA, ironically, when I kill X the console is on the Intel monitor. So it seems that Mint recognizes both I just haven't figured out how to tell X to include the Intel card/monitor into the GUI.


# nvidia-xconfig: version 310.44 (buildmeister@swio-display-x86-rhel47-07) Wed Mar 27 15:56:20 PDT 2013

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "InputDevice"

# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Unknown"
HorizSync 28.0 - 33.0
VertRefresh 43.0 - 72.0
Option "DPMS"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 560 Ti"
BusID "PCI:1:0:0"
Screen 0
EndSection

Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 560 Ti"
BusID "PCI:1:0:0"
Screen 0
EndSection

Section "Device"
Identifier "Device2"
Driver "vesa"
VendorName "Intel"
BusID "PCI:0:02:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
EndSubSection
EndSection



--
-Stupidity, like hydrogen, is one of the basic building blocks of the Universe.
-Insanity: doing the same thing over and over again and expecting different results.

Misc


TuxRaiderPen

join:2009-09-19
reply to Nick

What do you get with a:

$ xrandr --verbose
 

On the Mint setup and the other distro where 3 monitors work?

If xrandr is seeing the device you might be able to configure it that way.

I have a junk BF special monitor that needs to use that to get an acceptable resolution v. 1024x768 which is useless on 16:9 monitor..

So does xrandr even know about the card? ?

--
1311393600 - Back to Black.....Black....Black....


Nick
Purveyor of common sense
Premium,VIP,MVM
join:2000-10-29
Smithtown, NY

It looks like it does see it..But something isn't 100% right (See bolded). It sees 2 monitors on DVI-I-3 and another DVI connection above that. Which is correct. Everything is DVI connected.

It looks like it does see it..But something isn't 100% right (See bolded)

MintyFresh ~ $ lspci
00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4)
00:1c.5 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c4)
00:1c.6 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 7 (rev c4)
00:1c.7 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 8 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Z77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GF114 [GeForce GTX 560 Ti] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GF114 HDMI Audio Controller (rev a1)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller (rev 09)
04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge (rev 03)
06:00.0 SATA controller: Marvell Technology Group Ltd. 88SE9120 SATA 6Gb/s Controller (rev 12)
07:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host Controller
 

And xrandr:

@MintyFresh ~ $ xrandr --verbose
Screen 0: minimum 8 x 8, current 3840 x 1200, maximum 16384 x 16384
DVI-I-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x27b
Timestamp:  46803
Subpixel:   unknown
Clones:    
CRTCs:      1 0
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
SignalFormat:VGA
supported: VGA         
ConnectorType:DVI-I
ConnectorNumber: 0 (0x00000000)
_ConnectorLocation: 0 (0x00000000)
DVI-I-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x27c
Timestamp:  46803
Subpixel:   unknown
Clones:    
CRTCs:      1 0
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
SignalFormat:VGA
supported: VGA         
ConnectorType:DVI-I
ConnectorNumber: 1 (0x00000001)
_ConnectorLocation: 1 (0x00000001)
DVI-I-2 connected 1920x1200+0+0 (0x27e) normal (normal left inverted right x axis y axis) 518mm x 324mm
Identifier: 0x27d
Timestamp:  46803
Subpixel:   unknown
Gamma:      1.0:1.0:1.0
Brightness: 1.0
Clones:    
CRTC:       1
CRTCs:      1 0
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
EDID:
00ffffffffffff0010ac15f04c4c5943
0817010380342078ee1ec5ae4f34b126
0e5054a54b008180a940d100714f0101
010101010101283c80a070b023403020
360006442100001a000000ff00433539
324d33324b43594c4c0a000000fc0044
454c4c2055323431300a2020000000fd
00384c1e5111000a2020202020200007
SignalFormat:TMDS
supported: TMDS        
ConnectorType:DVI-I
ConnectorNumber: 0 (0x00000000)
_ConnectorLocation: 0 (0x00000000)
  1920x1200 (0x27e)  154.0MHz +HSync -VSync *current +preferred
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock   74.0KHz
        v: height 1200 start 1203 end 1209 total 1235           clock   60.0Hz
  1920x1200 (0x27f)  193.2MHz -HSync +VSync
        h: width  1920 start 2056 end 2256 total 2592 skew    0 clock   74.6KHz
        v: height 1200 start 1203 end 1209 total 1245           clock   59.9Hz
  1600x1200 (0x280)  162.0MHz +HSync +VSync
        h: width  1600 start 1664 end 1856 total 2160 skew    0 clock   75.0KHz
        v: height 1200 start 1201 end 1204 total 1250           clock   60.0Hz
  1280x1024 (0x281)  135.0MHz +HSync +VSync
        h: width  1280 start 1296 end 1440 total 1688 skew    0 clock   80.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   75.0Hz
  1280x1024 (0x282)  108.0MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock   64.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   60.0Hz
  1152x864 (0x283)  108.0MHz +HSync +VSync
        h: width  1152 start 1216 end 1344 total 1600 skew    0 clock   67.5KHz
        v: height  864 start  865 end  868 total  900           clock   75.0Hz
  1024x768 (0x284)   78.8MHz +HSync +VSync
        h: width  1024 start 1040 end 1136 total 1312 skew    0 clock   60.0KHz
        v: height  768 start  769 end  772 total  800           clock   75.0Hz
  1024x768 (0x285)   65.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  800x600 (0x286)   49.5MHz +HSync +VSync
        h: width   800 start  816 end  896 total 1056 skew    0 clock   46.9KHz
        v: height  600 start  601 end  604 total  625           clock   75.0Hz
  800x600 (0x287)   40.0MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  640x480 (0x288)   31.5MHz -HSync -VSync
        h: width   640 start  656 end  720 total  840 skew    0 clock   37.5KHz
        v: height  480 start  481 end  484 total  500           clock   75.0Hz
  640x480 (0x289)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   59.9Hz
HDMI-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x28a
Timestamp:  46803
Subpixel:   unknown
Clones:    
CRTCs:      1 0
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
SignalFormat:TMDS
supported: TMDS        
ConnectorType:HDMI
ConnectorNumber: 2 (0x00000002)
_ConnectorLocation: 2 (0x00000002)
<b>DVI-I-3 connected 1920x1200+1920+0 (0x27e) normal (normal left inverted right x axis y axis) 518mm x 324mm</b>
Identifier: 0x28b
Timestamp:  46803
Subpixel:   unknown
Gamma:      1.0:1.0:1.0
Brightness: 1.0
Clones:    
CRTC:       0
CRTCs:      1 0
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
           filter: 
EDID:
00ffffffffffff0010ac15f04c523943
0817010380342078ee1ec5ae4f34b126
0e5054a54b008180a940d100714f0101
010101010101283c80a070b023403020
360006442100001a000000ff00433539
324d33324b4339524c0a000000fc0044
454c4c2055323431300a2020000000fd
00384c1e5111000a202020202020003b
SignalFormat:TMDS
supported: TMDS        
ConnectorType:DVI-I
ConnectorNumber: 1 (0x00000001)
_ConnectorLocation: 1 (0x00000001)
  1920x1200 (0x27e)  154.0MHz +HSync -VSync *current +preferred
        h: width  1920 start 1968 end 2000 total 2080 skew    0 clock   74.0KHz
        v: height 1200 start 1203 end 1209 total 1235           clock   60.0Hz
  1920x1200 (0x27f)  193.2MHz -HSync +VSync
        h: width  1920 start 2056 end 2256 total 2592 skew    0 clock   74.6KHz
        v: height 1200 start 1203 end 1209 total 1245           clock   59.9Hz
  1600x1200 (0x280)  162.0MHz +HSync +VSync
        h: width  1600 start 1664 end 1856 total 2160 skew    0 clock   75.0KHz
        v: height 1200 start 1201 end 1204 total 1250           clock   60.0Hz
  1280x1024 (0x281)  135.0MHz +HSync +VSync
        h: width  1280 start 1296 end 1440 total 1688 skew    0 clock   80.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   75.0Hz
  1280x1024 (0x282)  108.0MHz +HSync +VSync
        h: width  1280 start 1328 end 1440 total 1688 skew    0 clock   64.0KHz
        v: height 1024 start 1025 end 1028 total 1066           clock   60.0Hz
  1152x864 (0x283)  108.0MHz +HSync +VSync
        h: width  1152 start 1216 end 1344 total 1600 skew    0 clock   67.5KHz
        v: height  864 start  865 end  868 total  900           clock   75.0Hz
  1024x768 (0x284)   78.8MHz +HSync +VSync
        h: width  1024 start 1040 end 1136 total 1312 skew    0 clock   60.0KHz
        v: height  768 start  769 end  772 total  800           clock   75.0Hz
  1024x768 (0x285)   65.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  800x600 (0x286)   49.5MHz +HSync +VSync
        h: width   800 start  816 end  896 total 1056 skew    0 clock   46.9KHz
        v: height  600 start  601 end  604 total  625           clock   75.0Hz
  800x600 (0x287)   40.0MHz +HSync +VSync
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  640x480 (0x288)   31.5MHz -HSync -VSync
        h: width   640 start  656 end  720 total  840 skew    0 clock   37.5KHz
        v: height  480 start  481 end  484 total  500           clock   75.0Hz
  640x480 (0x289)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   59.9Hz
 
 

--
-Stupidity, like hydrogen, is one of the basic building blocks of the Universe.
-Insanity: doing the same thing over and over again and expecting different results.

Misc


Selenia
I love Debian
Premium
join:2006-09-22
Fort Smith, AR
kudos:2
reply to Nick

Never tried 3 monitors 2 cards but good luck. Since the other user posted his xorg.conf with 2 monitors with an NVidia card, I will post the one for my laptop with an ATI card and dual monitors, for which I hookup an external monitor for movies and such while working on my stuff from its built-in monitor. I will post my dual monitor desktop with NVidia card later so you have more of a sample if you still need help. About all I can offer atm unless you give me some specific errors from your xorg log. Then maybe we can troubleshoot.

Section "Device"
    Identifier     "Device0"
    Driver         "radeon"
EndSection
Section "DRI"
  Mode 0666
EndSection
 
Section "ServerFlags"
    Option "DontZap" "false"
    Option "DRI2" "true"
EndSection
 
Oh and is the Intel a built-in chip like it sounds? If so, some boards do not play nice with trying to use internal and external graphics at the same time. You really should choose 1 or the other(preferably the external card) and disable the built-in graphics.
--
Dedicating my signature to help my big bro in his new upstart by asking people to come like his Facebook page and help spread the word(not a FB user myself). »www.facebook.com/mikethecomputermechanic


Selenia
I love Debian
Premium
join:2006-09-22
Fort Smith, AR
kudos:2

In fact, on my i3 it is the case I stated. Got 2 monitors running happily on my outboard GPU, but if I connect 1 to the internal chip....chaos ensues. I think it could be a matter of the board itself. I hate using Windows for troubleshooting, but sometimes it is the easy way over the internet if a user has dual boot. Does this config of yours work under Windows if applicable? This would at least eliminate the hardware setup as the culprit.
--
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Nick
Purveyor of common sense
Premium,VIP,MVM
join:2000-10-29
Smithtown, NY

Yup, this exact configuration works under Win 8 Pro and Os X. There's a small backstory to the reason behind not changing anything except in Linux. (Os X needs the internal HD4000 to be primary for airplay).

As of right now I have something I can work with since I have two monitors on the 560 Ti working but if I can get the 3rd one working then it's a bonus


TuxRaiderPen

join:2009-09-19
reply to Nick

said by Nick:
It looks like it does see it..But something isn't 100% right (See bolded). It sees 2 monitors on DVI-I-3 and another DVI connection above that. Which is correct. Everything is DVI connected.

It looks like it does see it..But something isn't 100% right (See bolded)


I didn't see anything bolded :(

But if it is "seeing" your 3rd output try something like:

 xrandr --newmode  "3rdmonitor" (desired modeline info) -hsync +vsync
 xrandr --addmode (output) 3rdmonitor
 xrandr --output (output) --mode 3rdmonitor
 

You need to find your info for the mode you want, as example:

These are the numbers your looking for... 79.50 1280 1344 1472 1664 768 771 781 798 -hsync +vsync

You can probalby get them on a search for your monitor make and model..

You can either then force it all via X conf file or just do this in a BASH script to turn it on every boot. Either way should do it.

--
1311393600 - Back to Black.....Black....Black....


Selenia
I love Debian
Premium
join:2006-09-22
Fort Smith, AR
kudos:2

I would be curious to see if this works. I played with xrandr in the past, but haven't had to lately. KDE does a nice job setting up monitors these days on Debian stable. My xorg.conf only does a couple corrections to the driver(like forcing DRI2, which is what works well with Gallium3D and specifying acceleration mode, which helps a few programs) and disabling don't zap to stop the black screen after logging out(known issue with KDM and ATI cards).. Otherwise, KDE(my favorite desktop environment) on Debian stable does a nice job of setting the monitors up. I do use DRIConf to tweak the card for speed and change texture mapping to avoid nasty graphics corruption.
--
Dedicating my signature to help my big bro in his new upstart by asking people to come like his Facebook page and help spread the word(not a FB user myself). »www.facebook.com/mikethecomputermechanic



Nick
Purveyor of common sense
Premium,VIP,MVM
join:2000-10-29
Smithtown, NY
reply to TuxRaiderPen

Well, for what it's worth the monitors should function at the same spec since the U2413 is just a newer version of the U2410.

Both models run at 1920x1200x32 so I think this may be what you're looking for with that line:

1920x1200 (0x27e) 154.0MHz +HSync -VSync *current +preferred
h: width 1920 start 1968 end 2000 total 2080 skew 0 clock 74.0KHz
v: height 1200 start 1203 end 1209 total 1235 clock 60.0Hz
--
-Stupidity, like hydrogen, is one of the basic building blocks of the Universe.
-Insanity: doing the same thing over and over again and expecting different results.

Misc


TuxRaiderPen

join:2009-09-19
reply to Selenia

said by Selenia:
disabling don't zap to stop the black screen after logging out(known issue with KDM and ATI cards)..
in kdmrc 
 
after the line:
 
[X-*-Core]
 
TerminateServer=true
 
 

I found that solved that issue with the crApTI cards I got stuck with on systems..

--
1311393600 - Back to Black.....Black....Black....

TuxRaiderPen

join:2009-09-19
reply to Nick

You can generate them as well.. but I've found them to be well hit or miss...I found one for my BF clunker that was just a little bit off from the gtf generated one, and it worked... where as the gtf one didn't... :(

 
 $gtf 1920 1200 74
 
  # 1920x1200 @ 74.00 Hz (GTF) hsync: 92.65 kHz; pclk: 243.11 MHz
  Modeline "1920x1200_74.00"  243.11  1920 2064 2272 2624  1200 1201 1204 1252  -HSync +Vsync
 
 

The line your looking for then is:

"1920x1200_74.00" 243.11 1920 2064 2272 2624 1200 1201 1204 1252 -HSync +Vsync

Then you would have:

xrandr --newmode  "1920x1200"  243.11  1920 2064 2272 2624  1200 1201 1204 1252  -HSync +Vsync
xrandr --addmode (output) 1920x1200
xrandr --output (output) --mode 1920x1200
 

Where output equals the DVI-I-x you need to come on.

--
1311393600 - Back to Black.....Black....Black....


Selenia
I love Debian
Premium
join:2006-09-22
Fort Smith, AR
kudos:2
reply to TuxRaiderPen

Didn't work before on this laptop but the xorg.conf line above seems to work on any install I tried it on. As they say, more than 1 way to skin a cat and some may work on particular software and hardware installs, but not others.It basically allows the xserver to terminate and reload after logout when you set DontZap to false.
--
Dedicating my signature to help my big bro in his new upstart by asking people to come like his Facebook page and help spread the word(not a FB user myself). »www.facebook.com/mikethecomputermechanic


TuxRaiderPen

join:2009-09-19

said by Selenia:
Didn't work before on this laptop but the xorg.conf line above seems to work on any install I tried it on. As they say, more than 1 way to skin a cat and some may work on particular software and hardware installs, but not others.It basically allows the xserver to terminate and reload after logout when you set DontZap to false.
Hmmm....interesting...

That setting is controlling more than what the man page for it says (gee no surprise there!) .. as all that setting is supposed to do is control the standard Ctrl-Alt-Backspace restart of X? ? So there is something more going on... here... and basically the KDMRC setting does the same thing... but does it in a different way that doesn't work on that particular setup...

I call that a bug all the way around..

Hidden extra "feature/functions" in a setting...

Hmm...wwerrry wintersting...
--
1311393600 - Back to Black.....Black....Black....


Selenia
I love Debian
Premium
join:2006-09-22
Fort Smith, AR
kudos:2

Only a theory. Maybe I can scope it out in a system monitor. Maybe it was in fact trying to reload X and the default true was preventing it, which would be, in fact, a bug. I am using a very beta driver, which would be the Gallium3D based radeon driver, not the mesa one. The acceleration is worlds better on a card crapTI does not wanna support.

Anyways, back to the OP. Are you using the proprietary or open source drivers? I would try nouveau if you have it available as NVidia's driver is good, but it tends to override many settings. Then try what TuxRaiderPen said if it's still not being picked up. Also do an lsmod(as superuser) to make sure the intel driver is also loading.
--
Dedicating my signature to help my big bro in his new upstart by asking people to come like his Facebook page and help spread the word(not a FB user myself). »www.facebook.com/mikethecomputermechanic



Nick
Purveyor of common sense
Premium,VIP,MVM
join:2000-10-29
Smithtown, NY
reply to Nick

I've just had to reinstall my Linux environment (needed to use the hard drive for something)....

After the reinstall and playing around with it...I know I can get 3 monitors working, but it seems to be an issue of drivers at this point.

When I boot up, the monitors are mirrored and unchecking them correctly detects 3 monitors. However, on the NVIDIA card I have artifacts whenever I move the mouse. I thought I would be clever and install NVIDIA drivers but they won't work unless I disable Nouveau. Not quite sure how to do that yet...
--
-Stupidity, like hydrogen, is one of the basic building blocks of the Universe.
-Insanity: doing the same thing over and over again and expecting different results.

Misc


BlitzenZeus
Burnt Out Cynic
Premium
join:2000-01-13
kudos:3

Well one of your options is installing the old nvidia drivers in the software center, see if things work on the next reboot. They are called nvidia-current, but that gives you an idea how out of date they are.



Nick
Purveyor of common sense
Premium,VIP,MVM
join:2000-10-29
Smithtown, NY

yeah i gave that a try and the results weren't any better.


BlitzenZeus
Burnt Out Cynic
Premium
join:2000-01-13
kudos:3

Want to take a risk? I've done this before on a clean install of Mint 15 leaving it stable.

sudo add-apt-repository ppa:xorg-edgers/ppa
sudo apt-get update
sudo apt-get dist-upgrade

Reboot, and hope things are better.