Using LCD monitor in digital mode

mickeyboa · 03-17-2005, 05:30 PM

Got a new LCD monitor Amptron V293 which will work as analog or digital, a ATI 9200SE video card. Fedora3.
if I plug in analog on video card it works great but if I swap and plug the digital plug
into the video card and linux will start but won't display when startx turns on,
what do I do to get Linux to display in digital video mode.

Jim

WhatsHisName · 03-18-2005, 11:52 AM

This may not even be close, but look at the “dual head” tab in the display hardware setup (RedHat > System Settings > Display)? Also, make sure it picked the right hardware.

mickeyboa · 03-18-2005, 02:28 PM

I'm not running a second monitor, the digital monitor will be the primary.

jim

WhatsHisName · 03-18-2005, 04:13 PM

Yes, I realize that. One of my systems has an ATI video card with an analog output for the monitor and a S-video output for a TV. The S-video output shows up in FC3 as a second head in the hardware configuration. I thought you might have the same experience. Again, it was a long shot.

mickeyboa · 03-18-2005, 04:26 PM

The ATI9200SE has a Analog an Dvi output connectors.
I think my problems ly in drivers, Amptron.com does not have drivers for Linux.
And the Generic LCD drivers in FC3 won't work. But It does a good job in Analog.
Thanks for your help

Jim

Salpula · 03-18-2005, 06:44 PM

I noticed some monitor have a "digital" and an "analog" option when you are browser through driver using system-config-display. . ..see if your monitor is listed for both digital and analogue (its a long shot and i've had a few drinks but worhta try eh?)

Utah · 03-23-2005, 09:19 AM

Having a similar problem with my DVI LCD. I wanted to just pick my video card and monitor from the "Display" "Configure" lists (Fedora Core 1) but neither is in the list.

Where does that list come from and/or reside? How do I get an up-to-date list with all the new hardware? It seems like that would be the easiest way to set it up although I'm (kinda) having fun trying to get it working by editing the XF86Config file. (Still no luck, however)

Mike Jewell

>>WhatsHisName said:
>>This may not even be close, but look at the “dual head” tab in the display hardware setup (RedHat > System >>Settings > Display)? Also, make sure it picked the right hardware.

alunduil · 03-23-2005, 09:25 AM

I'm not familiar with those cards, but check your #lspci. If that has two instances of your video card you need to specify which pci address in the xorg.conf/XF86.conf. Read the man page if this is the case as it is pretty clear on how to do that in the devices section. If not, continue looking for those drivers, and hope for good documentation.

Alunduil

mickeyboa · 03-23-2005, 03:15 PM

Yes it does show two different instances on the same card, you said the sittings have to be set in the Device section of xorg.conf .
Could you give a example of what I should enter.
Thanks for your help.

Jim

01:05.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 SE] (rev 01) (prog-if 00 [VGA])
Subsystem: Hightech Information System Ltd.: Unknown device 5964
Flags: bus master, 66Mhz, medium devsel, latency 255, IRQ 137
Memory at e8000000 (32-bit, prefetchable) [size=128M]
I/O ports at d800 [size=256]
Memory at d7000000 (32-bit, non-prefetchable) [size=64K]
Expansion ROM at e7fe0000 [disabled] [size=128K]
Capabilities: <available only to root>

01:05.1 Display controller: ATI Technologies Inc RV280 [Radeon 9200 SE] (Secondary) (rev 01)
Subsystem: Hightech Information System Ltd.: Unknown device 5965
Flags: bus master, 66Mhz, medium devsel, latency 64
Memory at d8000000 (32-bit, prefetchable) [size=128M]
Memory at d6800000 (32-bit, non-prefetchable) [size=64K]
Capabilities: <available only to root>

alunduil · 03-23-2005, 04:10 PM

I'll just use my device's section of my xorg.conf as an example. Remember though, I am only showing you how to set your video card correctly you shouldn't have to touch anything else, but if you want to learn more about configuring X read the man on xorg.conf.

Code:

# **********************************************************************
# Graphics device section
# **********************************************************************

# Any number of graphics device sections may be present

# Standard VGA Device:

Section "Device"
    Identifier	"Standard VGA"
    VendorName	"Unknown"
    BoardName	"Unknown"

# The chipset line is optional in most cases.  It can be used to override
# the driver's chipset detection, and should not normally be specified.

#    Chipset	"generic"

# The Driver line must be present.  When using run-time loadable driver
# modules, this line instructs the server to load the specified driver
# module.  Even when not using loadable driver modules, this line
# indicates which driver should interpret the information in this section.

    Driver     "vga"
# The BusID line is used to specify which of possibly multiple devices
# this section is intended for.  When this line isn't present, a device
# section can only match up with the primary video device.  For PCI
# devices a line like the following could be used.  This line should not
# normally be included unless there is more than one video device
# intalled.

#    BusID      "PCI:0:10:0"

#    VideoRam	256

#    Clocks	25.2 28.3

EndSection

# Device configured by xf86config:

Section "Device"
    Identifier  "video0"
    Driver      "mga"
    VendorName  "Matrox Graphics, Inc."
    #VideoRam    16384
    BusID       "PCI:2:0:0"
    Screen 0
    # Insert Clocks lines here if appropriate
EndSection

Section "Device"
    Identifier  "video1"
    Driver      "mga"
    VendorName  "Matrox Graphics, Inc."
    #VideoRam    16384
    BusID       "PCI:2:0:0"
    Screen 1
    # Insert Clocks lines here if appropriate
EndSection

Section "Device"
    Identifier  "video2"
    Driver      "ati"
    VendorName  "ATI"
    BusID       "PCI:1:0:0"
    Screen 2
    # Insert Clocks lines here if appropriate
EndSection

My system is set up with two video cards being mapped to two screens, but being on the same bus id because I use one card to dual head. So just use this as an example, and work out how your's would go. If you want the card to display your screen on the dvi out on your card, which is what I am assuming the problem is (let me know if I am wrong), then it's simply a matter of telling your computer which bus id to use.

Hope this helps,

Alunduil