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Xorg -configure fails with "created screens does not match number of detected devices"

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venkat

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Apr 2, 2015, 2:20:04 AM4/2/15
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For last one week i am struggling to make my dual display work.
Earlier it was with 2.632 kernel and my previous mail thread "Upgrading
guidance for Cedarview driver in Debian 6 - 2.6.32 Kernel" and various
forums confirmed me that possibility of achieving with 2.6.32 is ZERO. .

Now the board has been updated with 3.4.106 kernel with wheezy.But, when
i try to run Xorg -configure , it exits with an error message.
"created screens does not match number of detected devices"

Xorg -configure http://pastebin.com/G7sFuRYN

xorg.0.log : http://pastebin.com/68WQ8Zfv

My requirement does not even worry about screen resolution all i wanted
is to control my X display like on/off

lspci info : http://pastebin.com/zBVesvmS

Board type : ATOM N2600

request some guidance and troubleshooting ideas,

Regards
Venkat.S


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Floris

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Apr 2, 2015, 5:10:05 AM4/2/15
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Op Thu, 02 Apr 2015 08:08:48 +0200 schreef venkat
<venk...@vortexindia.co.in>:

> For last one week i am struggling to make my dual display work.
> Earlier it was with 2.632 kernel and my previous mail thread "Upgrading
> guidance for Cedarview driver in Debian 6 - 2.6.32 Kernel" and various
> forums confirmed me that possibility of achieving with 2.6.32 is ZERO. .
>
> Now the board has been updated with 3.4.106 kernel with wheezy.But, when
> i try to run Xorg -configure , it exits with an error message.
> "created screens does not match number of detected devices"
>
> Xorg -configure http://pastebin.com/G7sFuRYN
>
> xorg.0.log : http://pastebin.com/68WQ8Zfv
>
> My requirement does not even worry about screen resolution all i wanted
> is to control my X display like on/off
>
> lspci info : http://pastebin.com/zBVesvmS
>
> Board type : ATOM N2600
>
> request some guidance and troubleshooting ideas,
>
> Regards
> Venkat.S
>
>

I think you are using the wrong driver. What is the output of
$ lsmod

Maybe you have to add
i915.i915_enable_rc6=1
to the kernel boot line.

success,

floris


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Venkat Ragavan Swaminathan

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Apr 2, 2015, 5:30:06 AM4/2/15
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Posted lsmod info : http://pastebin.com/Y79th67k

On Thu, Apr 2, 2015 at 2:35 PM, Floris <jkfl...@dds.nl> wrote:
Op Thu, 02 Apr 2015 08:08:48 +0200 schreef venkat <venk...@vortexindia.co.in>:


For last one week i am struggling to make my dual display work.
Earlier it was with 2.632 kernel and my previous mail thread "Upgrading guidance for Cedarview driver in Debian 6 - 2.6.32 Kernel" and various forums confirmed me that possibility of achieving with 2.6.32 is ZERO. .

Now the board has been updated with 3.4.106 kernel with wheezy.But, when i try to run Xorg -configure , it exits with an error message.
"created screens does not match number of detected devices"

Xorg -configure http://pastebin.com/G7sFuRYN

xorg.0.log : http://pastebin.com/68WQ8Zfv

My requirement does not even worry about screen resolution all i wanted is to control my X display like on/off

lspci info : http://pastebin.com/zBVesvmS

Board type : ATOM N2600

request some guidance and troubleshooting ideas,

Regards
Venkat.S



I think you are using the wrong driver. What is the output of
$ lsmod

Maybe you have to add
i915.i915_enable_rc6=1
to the kernel boot line.

success,

floris



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Floris

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Apr 2, 2015, 5:50:05 AM4/2/15
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Op Thu, 02 Apr 2015 11:22:16 +0200 schreef Venkat Ragavan Swaminathan <venk...@vortexindia.co.in>:


Posted lsmod info : http://pastebin.com/Y79th67k

The right diver is loaded (gma500-gfx) but Xorg doesn't fully use it.

Backup up your Xorg.conf file and create a new one with only

Section "Device"
   Identifier "gma500_gfx"
   Driver "modesetting"
EndSection

Hopefully X doesn't fallback to vesa or fbdev

Success,

floris


Floris

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Apr 2, 2015, 6:00:04 AM4/2/15
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Op Thu, 02 Apr 2015 11:40:56 +0200 schreef Floris <jkfl...@dds.nl>:


Op Thu, 02 Apr 2015 11:22:16 +0200 schreef Venkat Ragavan Swaminathan <venk...@vortexindia.co.in>:

Posted lsmod info : http://pastebin.com/Y79th67k

The right diver is loaded (gma500-gfx) but Xorg doesn't fully use it.

Backup up your Xorg.conf file and create a new one with only

Section "Device"
   Identifier "gma500_gfx"
   Driver "modesetting"
EndSection

Most sites [1][2] add
   Option "SWCursor" "ON"
to the Device section

Section "Device"
    Identifier "gma500_gfx"
    Driver "modesetting"

venkat

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Apr 2, 2015, 6:00:05 AM4/2/15
to
Modified the XOrg.conf : made sure it has only one entry:

Section "Device"
   Identifier "gma500_gfx"
   Driver "modesetting"
EndSection

on boot : xorg pointer it terminated with an error.

    XorgLog: http://pastebin.com/7rpT6D59


-- 
Regards
Venkat.S

Floris

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Apr 2, 2015, 6:10:04 AM4/2/15
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Op Thu, 02 Apr 2015 11:47:20 +0200 schreef venkat <venk...@vortexindia.co.in>:
Looks good. The right driver is used.

Add a Screen and Monitor selection to the Xorg.conf

Section "Screen"
  Identifier "Screen0"
  Device "gma500_gfx"
  Monitor "Monitor0"
EndSection

Section "Monitor"
  Identifier "Monitor0"
  VendorName "Monitor Vendor"
  ModelName "Monitor Model"
EndSection


venkat

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Apr 2, 2015, 6:10:04 AM4/2/15
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The system boots but when GDM starts i just see a blank screen..



-- 
Regards
Venkat.S

Floris

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Apr 2, 2015, 6:30:04 AM4/2/15
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Op Thu, 02 Apr 2015 12:04:32 +0200 schreef venkat <venk...@vortexindia.co.in>:
Switch back to tty1, kill gdm and start the X server with startx



venkat

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Apr 2, 2015, 6:40:04 AM4/2/15
to
Yes i tried that and i get an error: no screens found

[    21.958] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    21.959] (II) Module modesetting: vendor="X.Org Foundation"
[    21.959]     compiled for 1.12.1.902, module version = 0.3.0
[    21.959]     Module class: X.Org Video Driver
[    21.959]     ABI class: X.Org Video Driver, version 12.0
[    21.959] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    21.959] (++) using VT number 8

[    21.967] (WW) Falling back to old probe method for modesetting
[    21.967] (II) UnloadModule: "modesetting"
[    21.967] (EE) Screen(s) found, but none have a usable configuration.
[    21.967]
Fatal server error:
[    21.967] no screens found
[    21.967]
Please consult the The X.Org Foundation support
     at http://wiki.x.org
 for help. 


-- 
Regards
Venkat.S

Floris

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Apr 2, 2015, 10:40:06 AM4/2/15
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Op Thu, 02 Apr 2015 12:32:48 +0200 schreef venkat <venk...@vortexindia.co.in>:
There are a lot of trial and error stories about the gma500 module.
An other possible solution. add
Option "IgnoreACPI" "yes"
to the device section of your xorg.conf

Success,

floris 


deloptes

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Apr 2, 2015, 6:40:05 PM4/2/15
to
venkat wrote:

> [ 21.967] (EE) Screen(s) found, but none have a usable configuration.

I had same message recently when I moved wheezy (the hard disk with the
system) to a new hardware. It turned out the Xorg server version did have
poor support for the new hardware in wheezy, so either compile newer
version with a bunch of additional software or upgrade to jessie. The last
option I took, because jessie seems to be mostly ready to go into stable
and it worked for my graphic card pretty well.

regards


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venkat

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Apr 3, 2015, 7:30:03 AM4/3/15
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Tried various options today and finally modified xorg.conf with below settings made my X server start with multiple displays enabled.


Section "Device"
  Identifier "Intel GMA3600"
  Driver "modesetting"
  BusID "PCI: 0: 2: 0
  Option "Monitor-DVI-0" "DVI screen"
  Option "Monitor-VGA-0" "VGA screen"
EndSection
Section "Monitor"
  Identifier "DVI screen"
EndSection
Section "Monitor"
  Identifier "VGA screen"
EndSection

However, i notice that the display is not smooth. Even, when i traverse to from one menu to other i see it so shaky. Right now fighting to fix that.
 Need some guidance


-- 
Regards
Venkat.S

David Wright

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Apr 3, 2015, 9:40:04 AM4/3/15
to
Quoting venkat (venk...@vortexindia.co.in):

> Tried various options today and finally modified xorg.conf with below settings
> made my X server start with multiple displays enabled.
>
>
> Section "Device"
>   Identifier "Intel GMA3600"
>   Driver "modesetting"
>   BusID "PCI: 0: 2: 0
>   Option "Monitor-DVI-0" "DVI screen"
>   Option "Monitor-VGA-0" "VGA screen"
> EndSection
> Section "Monitor"
>   Identifier "DVI screen"
> EndSection
> Section "Monitor"
>   Identifier "VGA screen"
> EndSection

Good.

> However, i notice that the display is not smooth. Even, when i traverse to from
> one menu to other i see it so shaky. Right now fighting to fix that.
>  Need some guidance

I typed gma3600 jerky into google. The second hit contains:

"The new D2700 does have integrated HD video encoding and it works as
promised for the most part. Both 720p and 1080p HD video can be played
as long as its either MPEG2 or H.264, although 1080p can be a bit
jerky at times. It's not a slideshow, but it's also not completely
smooth. Especially when the bitrate is a bit higher, it starts to
struggle. This likely has to do with Intel's GMA3600 video drivers
that the manufacturer has been struggling with since launching the new
Atom platform in late 2011."

I know nothing about this hardware but I know a man who does. :)

Cheers,
David.


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Ric Moore

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Apr 4, 2015, 2:40:03 PM4/4/15
to
On my old Thinkpad, I had to reduce the color depth in xorg.conf. Worked
a charm. Ric



--
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"There are two Great Sins in the world...
..the Sin of Ignorance, and the Sin of Stupidity.
Only the former may be overcome." R.I.P. Dad.
http://linuxcounter.net/user/44256.html


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venkat

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Apr 6, 2015, 6:00:05 AM4/6/15
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Tried 16 , 24 and different depths randomly depth still i see no
improvements in display. Still, the display transition is so jittery.
My target application is a simple GTK application. For sure does not
require any 3d. All I need is dual display.



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Regards
Venkat.S


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venkat

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Apr 6, 2015, 8:10:06 AM4/6/15
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On 06-04-2015 17:28, Gregory Smith wrote:
> System....D?

(If you happen to to ask about whatversion of debian :; then :: Wheezy
with 3.4 Kernel)
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Regards
Venkat.S


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venkat

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Apr 7, 2015, 8:10:04 AM4/7/15
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On 05-04-2015 00:08, Ric Moore wrote:
Thanks, guys for the help that you have provided with Wheezy + 3.4 kernel.
Although with 3.4 kernel the display control worked with DVI & LVD. Saw great amount of latency in UI.

Installed Jessie in N2600 board.

After installation noticed that system freeze during boot @ ata6: sata max udma/133 ABAR M512@

Googling  resulted in adding "nolapic" to kernel parameter in boot solved the issue. Still, need to check the cons of doing it.

After boot Diisplay worked charm... Both UI & Dual display (LVDS + HDMI) worked as expected.

In BIOS enabled CRT + HDMI and booted the system. After boot HDMI is working .But, no output found for VGA.

Xrandr reports VGA-0 device connected.  
-- 
Regards
Venkat.S
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