We have received a number of reports where full-screen mode in Qedit/UX would return one or more of the following error messages:
Depending on the amount of text on your screen, you might get one of the above error messages after hitting the Enter key or a function key (with Set Visual Update On). Typically, you would also get the "I/O error" message at the bottom of the screen, below the template line.
The following settings should work well with Reflection1. The location of these settings will change depending on your equipment. In Reflection1 version 5.20 for Windows95, they are under Setup/Terminal.
EMULATION tab Terminal type (ID) HP2392 or HP700/9x ADVANCED button Host Prompt NONE Inhibit Handshake ON Inhibit DC2 ONYou should also set and export these UX environment variables:
TERM=hp RCRTMODEL=2Since the introduction of HP-UX 10.xx and Windows95, these errors seem to occur more frequently.
There is a known problem in the tty driver provided with HP-UX 10.0, 10.01, 10.10 and 10.20. To fix the problem, you should install one of the following patches:
|HP-UX Version||Patch number||Integrated into|
The individual patch numbers 8409, 8414 and 8415 will not change in the future. However, they could be integrated with other patches so the numbers 9436, 9437 and 9438 could change. You can download these patches from HP's Electronic Support Center using your Web browser (you must have a support contract). If you are in America or Asia-Pacific, go to http://us-support.external.hp.com. If you are in Europe, go to http://europe-support.external.hp.com.
You can also download these patches using anonymous ftp (no restriction):
$ftp us-support.external.hp.com OR $ftp europe-support.external.hp.com >login: anonymous >password:If you do not have access to these sites, please call your local HP office.
>cd hp-ux_patches/s700_800/10.X >get PHNE_xxxx
NOTE: We have received a few reports of this happening with HP-UX 9.04. These reports are still under investigation. We will update this document with new information as it becomes available.
Communication between the terminal and HP-UX requires multiple layers of software (network protocol, telnet protocol, pty/tty terminal drivers). Qedit/UX full-screen mode uses block-mode I/O. This means the whole screen gets transferred to the host when you press Enter. Usually, there are hundreds of characters transferred all at once. Some of the buffers used to exchange information between telnet and the pty drivers are overflowing causing corruption. HP-UX then reports an I/O error to Qedit/UX.
If you prefer, you can download it using anonymous ftp from
The file is called
readerr.exe in the
Hit block-mode ENTER when all five (5) lines are displayed!
then block-mode should be working fine on your system.
===> Start of file 1 /usr/tmp/qscr.CAAa02492 "" Hint: bla bla bla * aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa // ....+....1....+....2....+....3....+....4....+....5....+....6....+...Hit Enter. If it works, create a second text line. You can replicate the first one or add a different one. Hit Enter again. Keep doing this until it fails. In our tests, we have seen the failure after about 6 lines. Your test may vary.
The important thing here is that it should work with a few lines and stop after a certain point.
Windows 95 | | Reflection1 | | Windows TCP/IP | | telnet to MachineA | | HP-UX 10.xx | | Qedit/UXWe were also able to reproduce the problem using a dumb terminal connected to another (or the same) HP-UX machine and telnet'ing over to the machine running HP-UX 10.xx.
Login to MachineA | | telnet MachineA | | login again | | HP-UX 10.xx | | Qedit/UX
The patches are the only permanent solutions that will solve this for all your Qedit/UX users.
However, the problem does not occur if you are using WRQ's Reflection Network Series (RNS) TCP/IP stack. In block-mode, the Windows95 stack transfers the whole screen in a single packet. On the other hand, RNS breaks the block down, sending only one line per packet. These smaller packets are handled correctly by telnet on HP-UX.
RNS must be purchased from WRQ so this is not an option for most customers.
A few customers reported similar problems with version 9.04 of HP-UX. Although the symptoms are exactly the same, we have not been able to reproduce it on our system. We have also been unable to find an equivalent patch for 9.xx versions. On these few instances, HP's response centre recommended that the customer installed the latest "mux and pty cumulative patch". At the time of this writing, the latest one for 9.04 is PHNE_10416. We have not yet received any confirmation whether this fixes the problem or not. We will post any findings on this page as they become available.