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n10sity 05-25-2010 05:09 PM

Debian, KVM Switch, DVI-VGA adapter
 
Hello,

I'm a linux newbie.

I've read a ton of wikis, forums and knowledge bases trying to figure out how to get my Debian GNU/Linux 5.0.4 running KDE 3.5 to work with my KVM switch. But I can't find my exact problem. I have two problems, I think. 1) I'm using a DVI-A to DE-15 (VGA) adapter. 2) I'm using a Belkin SOHO F1DS102T KVM switch, which uses D-Sub (VGA) connectors. My video card by the way is a Nvidia Quadro FX 3400 with DVI-I connectors (interface).

I figured one of those two or the combination of the two was causing my screen to be blank when x server starts. So I ran a DVI cable directly to one of my two Dell UltraSharp 1901FP LCD monitors. It works that way. But I have two computers that I switch back and forth between, so I really could use the KVM switch. Please help me get my display to work with my KVM switch in Debian. I would also like to have dual display.

Log Time. I hope this isn't too much info. Thanks in advance.

Uname Output:
2.6.26-2-amd64

LSPCI Output
00:00.0 Host bridge: Intel Corporation E7525 Memory Controller Hub (rev 09)
00:00.1 Class ff00: Intel Corporation E7525/E7520 Error Reporting Registers (rev 09)
00:02.0 PCI bridge: Intel Corporation E7525/E7520/E7320 PCI Express Port A (rev 09)
00:03.0 PCI bridge: Intel Corporation E7525/E7520/E7320 PCI Express Port A1 (rev 09)
00:04.0 PCI bridge: Intel Corporation E7525/E7520 PCI Express Port B (rev 09)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:00.0 PCI bridge: Intel Corporation 6700PXH PCI Express-to-PCI Bridge A
01:00.2 PCI bridge: Intel Corporation 6700PXH PCI Express-to-PCI Bridge B
03:0e.0 Ethernet controller: Intel Corporation 82545GM Gigabit Ethernet Controller (rev 04)
05:00.0 VGA compatible controller: nVidia Corporation NV41 [Quadro FX 3450/4000 SDI] (rev a2)
06:0c.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)

LSUSB Output:
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 06f2:0011 Emine Technology Co. KVM Switch Keyboard
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Xorg.conf:
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
EndSection

Section "Device"
Identifier "Configured Video Device"
EndSection

Section "Monitor"
"xorg.conf" [readonly] 41L, 1077C

pljvaldez 05-25-2010 07:51 PM

We recently had a problem at work with a particular cheap KVM switch (can't recall the model). Our IT folks determined that some newer graphics cards go into a low power state if they don't sense an appropriate load (i.e. the KVM isn't acting enough like a monitor) and turn off the display output since it doesn't think there's a monitor attached. Maybe it's a similar problem for you. If you have a different card handy, you might try it and see if it works.


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