Monitors attached to 1735 get "out of range" error

Troubleshooting

Problem

This issue only occurs when the NVIDIA Quadro FX 580 or NVIDIA Quadro FX 1800 is installed in the System x3400 M2 or System x3500 M2, Linux 32-bit or 64-bit is the installed Operating System (OS) and the Keyboard, Video, and Mouse (KVM) 17354LX module isused. Changing to the display mode of 1280 x 1024 causes the monitor to show the mode as "Out of Range." This issue occurs with either CRT or LCD monitors that are connected through the KVM 17354LX module.

Resolving The Problem

Source

RETAIN tip: H195626

Symptom

This issue only occurs when a high resolution video card is used, Linux 32-bit or 64-bit is installed as the Operating System (OS), and the Keyboard, Video, and Mouse (KVM) 1735-xLX/xGX switch is used.

Changing to the display mode of 1280 x 1024 x 85 Hz or higher or using "auto" in the display properties causes the monitor to show the mode as "Out of Range."

Note: This issue occurs with either CRT or LCD monitors that are connected through the KVM 1735-xLX/xGX switch.

Affected configurations

The system is configured with one or more of the following IBM Options:

1x8 Console Switch, Option 17351LX
1x8 Console Switch, Option 17353LX
2x16 Console Switch, Option 17352LX
2x16 Console Switch, Option 17354LX
IBM Global 2x16 Console Manager (GCM2), Option 17352GX
IBM Global 4x16 Console Manager (GCM4), Option 17354GX
IBM Local 2x8 Console Manager (LCM2), Option 17351GX
USB Conversion Option (UCO), Option 39M2895

This tip is not hardware specific.
This tip is not software specific.

The system has the symptom described above.

Workaround

This issue can be avoided by using the Linux Video Electronics Standards Association (VESA) driver in the 1024 x 768 display mode, or the 1280 x 1024 @ 60Hz and 75Hz rather than using the 1280 x 1024 @ 85 Hz or 1280 x 1024 "auto" display mode. Another method to avoid this issue is to connect the monitor directly to the output of the video card.

This issue does not occur when the OS is Windows.

With a GCM (1735-xGX), use Virtual media Cable Option (VCO) Field Replaceable Unit (FRU) 39M2894 because Extended Display Identification Data (EDID) data in the VCO module can be flashed in field. This has been fixed in the VCO in 1.3.30 or higher firmware release.

With a 1735-xLX and UCO cables, this issue still exists and cannot be flashed with firmware.

Additional information

There is an interaction between the KVM 1735-xLX/xGX switch and the Linux video card driver in the 1280 x 1024 @ 85Hz or "auto" display mode.

The UCO adapter cable has a fixed table of supported resolutions, with a maximum resolution of 1280 x 1024 @ 75 Hz. The table cannot be updated in the field for UCO cable adapters. The cable does not pass server resolution requests to the KVM switch.

Document Location

Worldwide

Operating System

System x:Red Hat Linux

System x:Red Hat Enterprise Linux 3

System x:Red Hat Enterprise Linux 3 x86-64

System x:Red Hat Enterprise Linux 4

System x:Red Hat Enterprise Linux 4 x86-64

System x:Red Hat Enterprise Linux 5

System x:Red Hat Enterprise Linux 5 x86-64

System x:SUSE Linux Enterprise Server 8

System x:SUSE Linux Enterprise Server 8 x64

System x:SUSE Linux Enterprise Server 9

System x:SUSE Linux Enterprise Server 9 x64

System x:SUSE Linux Enterprise Server 10

System x:SUSE Linux Enterprise Server 10 x86-64

System x:Red Hat Enterprise Linux AS v2.1

System x:Red Hat Enterprise Linux ES v2.1

System x:Red Hat Enterprise Linux WS v2.1

System x:Red Hat Linux 6

System x:Red Hat Linux 7

System x:Red Hat Linux 8

System x:Red Hat Linux 9

System x Hardware Options:Red Hat Enterprise Linux 3

System x Hardware Options:Red Hat Enterprise Linux 3 x86-64

System x Hardware Options:Red Hat Enterprise Linux 4

System x Hardware Options:Red Hat Enterprise Linux 4 x86-64

System x Hardware Options:Red Hat Enterprise Linux 5

System x Hardware Options:Red Hat Enterprise Linux 5 x86-64

System x:SUSE Linux Enterprise Server 11

System x:SUSE Linux Enterprise Server 11 x86-64

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Tips

Monitors attached to 1735 get "out of range" error - IBM System x