Help: X setup on a Dell OptiPlex GX1

Help: X setup on a Dell OptiPlex GX1

Post by James Youngm » Fri, 06 Nov 1998 04:00:00

> I'm running kernel 2.0.34 on Red Hat 5.1, with XFree 3.3.2-8.

> I can run X no problem at 1280x1024, but not at 1600x1200.

> When I run xf86config,

Try Xconfigurator instead.



1. Ethernet media rate negotiation on Dell OptiPlex GX1

The Dell OptiPlex GX1 firmware does not properly initialize the
embedded Ethernet controller media independent interface (MII)
register at boot time.  The card is not recognized by the kernel as
being capable of rate negotiation.  Here's the kernel dmesg when it
finds the chip

  00:11.0: 3Com PCI 3c905B Cyclone 100baseTx at 0xdc00. Vers LK1.1.18-ac

The fix is to place this line in /etc/modules.conf

  options 3c59x options=0x8

which will tell the 3c59x driver to set the register to the proper
value.  You can verify auto negotiation of the media worked properly
by using the mii-tool command line

# /sbin/mii-tool -v

eth0: negotiated 100baseTx-FD, link ok
  product info: vendor 00:00:00, model 0 rev 0
  basic mode:   autonegotiation enabled
  basic status: autonegotiation complete, link ok
  capabilities: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  advertising:  100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD
  link partner: 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD

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