Noel Hunt <noel.hunt@gmail.com> writes:

Can anyone help please?

Not sure if this'll help ...

If you haven't already done so, I suggest running "Xorg -configure".
Start with the config file that produces and modify as desired.

As to the xorg.config file content you posted, I see no ellipsis (...),
so I can't tell whether what you posted is really your entire xorg.conf
or was trimmed to the parts you think relevant. (For example, I see no InputDevices in your ServerLayout section.) My main concern would be
whether something's missing or that the default value you get for
unspecified values is something that doesn't work in your case.

Xorg gives

[ 7014.986] (EE) No devices detected.
[ 7014.986] (EE) no screens found(EE)

This could be a config problem rather than a hardware detection
problem, in which case the lines before those in the log file should
indicate what failed.
-WBE

--- SoupGate-Win32 v1.05
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I am running Xorg on an HP desktop machine with an Intel Q45/Q43
video card (Solaris). Although HAL knows about this card, and what
driver to use:

udi = '/org/freedesktop/Hal/devices/pci_0_0/display_2_0'
info.solaris.driver = 'i915' (string)
solaris.devfs_path = '/pci@0,0/display@2' (string)
info.product = 'VGA compatible controller' (string)
info.udi = '/org/freedesktop/Hal/devices/pci_0_0/display_2_0' (string)
info.parent = '/org/freedesktop/Hal/devices/pci_0_0_0' (string)

Xorg gives

[ 7014.986] (EE) No devices detected.
[ 7014.986] (EE) no screens found(EE)

I have a very straightforward xorg.conf:

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
EndSection

Section "ServerFlags"
Option "AutoAddDevices" "False"
EndSection

Section "Screen"
Identifier "Screen0"
Monitor "VGA screen"
Device "Intel Q45/Q43"
EndSection

Section "Monitor"
Identifier "VGA screen"
VendorName "Hewlett-Packard"
ModelName "HP L1910"
# Option "PreferredMode" "1280x1024_75"
Option "Enable" "true"
EndSection

Section "Device"
Identifier "Intel Q45/Q43"
Driver "intel"
BusID "PCI:0:2:0"
EndSection

When I run Xorg and specify the 'vesa' driver, Xorg's log shows
that it detects the card as

[ 7084.222] (--) PCI:*(0:0:2:0) 8086:2e12:103c:3034 rev 3, Mem @ ...
[ 7084.222] (--) PCI: (0:0:2:1) 8086:2e13:103c:3034 rev 3, Mem @ ...

Since I am explicitly telling Xorg what to use I don't
understand why it's failing.

Can anyone help please?

--- SoupGate-Win32 v1.05
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Many thanks for your reply.

On Monday, March 7, 2016 at 3:13:57 AM UTC+11, Winston wrote:

If you haven't already done so, I suggest running "Xorg -configure".
Start with the config file that produces and modify as desired.

It's much worse than you imagine. 'Xorg -configure' fails with
'number of created screens does not match number of detected
devices'.

There is something odd about the card---'scanpci' output:

pci bus 0x0000 cardnum 0x02 function 0x00: vendor 0x8086 device
0x2e12
Intel Corporation 4 Series Chipset Integrated Graphics
Controller

pci bus 0x0000 cardnum 0x02 function 0x01: vendor 0x8086 device
0x2e13
Intel Corporation 4 Series Chipset Integrated Graphics
Controller

So, one card, two devices; but there is only one monitor. There
is a VGA output and a DisplayPort output port, but I don't know
if that has anything to do with the two detected devices. Xorg
detects these devices:

[ 144.787] (--) PCI:*(0:0:2:0) 8086:2e12:103c:3034 rev 3, Mem @
0xf0000000/4194304, 0xe0000000/268435456, I/O @ 0x00001230/8
[ 144.787] (--) PCI: (0:0:2:1) 8086:2e13:103c:3034 rev 3, Mem @
0xf0400000/1048576

but if I specify 'intel' as the driver it fails.

So, I have to use an xorg.conf which explicitly tells Xorg what
device to use. One missing section you mention is:

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
EndSection

I don't have an InputDevice section; I am using HAL and HAL does
seem to recognize the card (from 'lshal'):

udi = '/org/freedesktop/Hal/devices/pci_0_0/display_2_0'
info.solaris.driver = 'i915' (string)
solaris.devfs_path = '/pci@0,0/display@2' (string)
info.product = 'VGA compatible controller' (string)
info.udi = '/org/freedesktop/Hal/devices/pci_0_0/display_2_0' (string)
info.parent = '/org/freedesktop/Hal/devices/pci_0_0_0' (string)

[ 7014.986] (EE) No devices detected.
[ 7014.986] (EE) no screens found(EE)

This could be a config problem rather than a hardware detection
problem, in which case the lines before those in the log file should
indicate what failed.

I can't disagree with that but I can't see where the
configuration is wrong.

Perhaps needless to say the 'vesa' driver works and that is what
I have been using for 2 years. I used to use FreeBSD but Xorg
under that seemed to get the intel driver working properly, but I
don't have any record of what xorg.conf was like for that. But
again, Xorg -configure wouldn't work on FreeBSD for the same
reason I mentioned above.

Anyway, thanks for your suggestions.

Noel Hunt

--- SoupGate-Win32 v1.05
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Problem solved.

For the sake of anyone else who might encounter this, the
Intel card requires external kernel memory (so I read on
the web), as opposed to other cards like Nvidia etc. which
I believe have on-board memory.

To provide this memory, the kernel has an 'agpgart'
driver/module/frobboz, and this wasn't installed. The symptom
was only a warning in /var/adm/messages:

WARNING: [drm:drm_agp_init:472] failed to open /dev/agpgart, ret=19

but this actually prevented the drm module from running.

Once I installed the package, everything just worked.

--- SoupGate-Win32 v1.05
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Noel Hunt <noel.hunt@gmail.com> writes:

There is something odd about the card---'scanpci' output:

pci bus 0x0000 cardnum 0x02 function 0x00: vendor 0x8086 device
0x2e12
Intel Corporation 4 Series Chipset Integrated Graphics
Controller

pci bus 0x0000 cardnum 0x02 function 0x01: vendor 0x8086 device
0x2e13
Intel Corporation 4 Series Chipset Integrated Graphics
Controller

So, one card, two devices;

Dual monitor support? IPMI support? One for control and one for data?
I don't know either.

Xorg detects these devices:

[ 144.787] (--) PCI:*(0:0:2:0) 8086:2e12:103c:3034 rev 3, Mem @
0xf0000000/4194304, 0xe0000000/268435456, I/O @ 0x00001230/8
[ 144.787] (--) PCI: (0:0:2:1) 8086:2e13:103c:3034 rev 3, Mem @
0xf0400000/1048576

but if I specify 'intel' as the driver it fails.

With some chips, I've seen the vesa driver work better and be more
capable than the manufacturer's driver, so unless you know the intel
driver has something you want and can't get elsewhere, maybe just use
vesa and don't worry about it too much.

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
EndSection

I don't have an InputDevice section; I am using HAL and HAL does
seem to recognize the card (from 'lshal'):

Actually, I had things like InputDevice Keyboard and Mouse in mind. :)

Let's waste some USENET bandwidth... :-)

Below is a longer xorg.conf. Edit as needed, especially the lines
marked "====>". They need actual values, and I don't know what yours
are. If Xorg -configure writes part of the conf file out before
complaining, the strings may be in there. The Screen section below is
probably wrong, but at this point the goal is to start up instead of
exiting.

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

Section "ServerFlags"
Option "AutoAddDevices" "False"
EndSection

Section "Files"
ModulePath "/usr/local/lib/xorg/modules"
FontPath "/usr/local/share/fonts/misc/"
FontPath "/usr/local/share/fonts/TTF/"
FontPath "/usr/local/share/fonts/OTF/"
FontPath "/usr/local/share/fonts/Type1/"
FontPath "/usr/local/share/fonts/dejavu/"
FontPath "/usr/local/share/fonts/util/"
EndSection

Section "Module"
Load "extmod"
Load "freetype"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/sysmouse"
EndSection

Section "Monitor"
Identifier "VGA screen"
VendorName "Hewlett-Packard"
ModelName "HP L1910"
# Option "PreferredMode" "1280x1024_75"
Option "Enable" "true"
Option "DPMS"
EndSection

Section "Device"
Identifier "Intel Q45/Q43"
Driver "intel"
====> BusID "PCI:0:2:0" [and if that doesn't work, maybe try 0:2:1]
====> VendorName "Your vendor name here" Intel?
====> BoardName "Your board name here" Intel Corporation 4 Series Chipset Integrated Graphics Controller?
EndSection

Section "Screen"
Identifier "Screen0"
Monitor "VGA screen"
Device "Intel Q45/Q43"
DefaultDepth 16
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 4
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 8
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 15
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1280x1024"
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
EndSubSection
EndSection

----------

If that doesn't help, post not just the Xorg.0.log error lines but also
the lines before it, since they often have clues.

HTH,
-WBE

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