Dtlogin fails on localdisplay

[jim bidebo]

running hp-ux 11.00

Have moved one of our workstations to a new place where it shares the display, kbd and mouse with a ordinary PC. At boot it seams ok, all the terminal output are displayed on the new screen witch is attached to an addon-gfxcard in slot 2. (the internal card isnt in use at all).
But when it comes to Dtlogin it says its OK, but right after that the screen turns grayish, and if returned is pressed severaltimes its possible to see the terminal-login prompt poping up for a millisec.

I get the following error message in syslog:
syslog: libtt[2643]: ttdt_Xt_input_handler(): tttk_message
_receive(): TT_ERR_NOMP^INo ttsession process is running, probably because tt_op
en() has not been called yet. If this code is returned from tt_open() it means t
tsession could not be started, which generally means ToolTalk is not installed o
n this system.

Can add that Dtlogin works fine when used remote via XDCMP (reflection X or Exceed).

Any ideas?

[Alex Glennie]

"shares the display, kbd and mouse with a ordinary PC" -HOW some form of switch , make ?

Since dtlogin (remote) connections work fine you can deduce that it's specific to the local display, sounds to me when you switch back to the unix box from the "dark-side" your switch has dropped the xserver connection : you may see something in /var/dt/Xerrors.

out of interest what's the O/S and are we talking USB devices at all ... patch level maybe responsible or the switch imho ....

Does fix it or does it need a reboot ?

ps don't think the tooltalk errors are relevant in this case ....

[jim bidebo]

The switch are a brand that we have used before in similiar situations. and its only possible to attach ps2 kbd and mouse.
i think ive found the real problem thou:
Xerrors:
Tue Jan 21 16:28:54 2003
error (pid 1604): Server for display tdb15:0 terminated unexpectedly 1

Fatal server error:
Couldn't open X pointer device! Is one attached?

(its repeated several times)

kinda strange thou, using a normal 3 button logitech mouse.

No didnt thought that tooltalk had any to do with it... its just a normal behavior at any X problem =)

[Rick Beldin · Accepted solution]

Not all KVM's (keyboard and mouse switches) are the same. They need to hold the PS2 or USB signals in a certain way or the HP-UX system won't detect the device. The Xserver will not start in its default configuration without a mouse and keyboard.

One KVM that is qualified and supported to work with HP-UX workstations is A7812A. More information on this device here:

http://www.hp.com/workstations/products/accessories/risc/input_devices/a7812a/summary.html

[jim bidebo]

sorry to have bothered you with this, the problem turnedout to be a broken ps2 port at the switch. Thanks for all the help thou.