TECHNICAL INFORMATION DOCUMENT

TITLE:              TF2021 - Console Driver Alternate Char Set
DOCUMENT ID:        TID300216
DOCUMENT REVISION:  A
DATE:               23MAY95
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         tf2021

PRODUCT and VERSION:
UnixWare 2.0

ABSTRACT:

The UnixWare 2.0 console responds incorrectly in alternate character 
set mode.  This fix installs a new /etc/conf/pack.d/ansi/Driver_atup.o.

SYMPTOM

various, See below

SOLUTION

Apply the tf2021 file.


Installation Instructions:  

DATATYPE: datastream

1.  Download the tf2021.Z and tf2021.txt files to the /tmp directory
    on your machine.

2.  Read the release notes contained in this file and follow the
    instuctions to add the packages to your system.

3.  Now become root, uncompress the file and add the package to your 
    system using the following commands:

        $ su
        # uncompress /tmp/tf2021.Z
        # pkgadd -d /tmp/tf2021

Solution Specifics

Product And Version
-------------------

UnixWare 2.0, UnixWare 2.01, UnixWare 2.02.

Symptom
--------

When you go into alternate character set mode (`tput smacs`) on the
console, all bold characters become garbage, including characters
that were already on the screen (e.g. previously `tput bold` or
`setcolor` was executed, which puts bold characters on the screen).
And any subsequent bold characters output garbage on the screen.
When you return to normal mode (`tput sgr0`), the screen returns to
normal; all the bold (garbage) characters become the appropriate
characters.


General Description.
-------------------

There is code in the console driver which is intended to handle
the Japanese multi-byte character set.  This code sets values in
certain registers of the video card.  The values in these registers
have adverse side effects on the single-byte console.  So for the
single-byte case, the fix is to simply NOT call on this code which
handles the multi-byte character set, and therefore these registers are
not adversely affected.


New Features.
------------

None

Software Notes and Recommendations.
----------------------------------

This PTF should be installed on UnixWare 2.0, 2.01, or 2.02 systems.
If the fix is installed on UnixWare 2.0, and the system is then
upgraded to UnixWare 2.01 or 2.02, then the fix should be re-installed.

This fix has been tested on the single-byte console only, and therefore
is NOT recommended for the multi-byte console.

Testing of the modified software contained in this package has been
conducted only to the extent necessary to confirm that it resolves the
problem(s) stated above ("Symptom").  Such testing consists of
recreating the problem conditions and verifying that the problem no 
longer occurs.  No other testing of this software has been done.

Hardware Notes and Recommendations.
----------------------------------

This PTF is targeted for the i386, i486 and Pentium CPU's.