TECHNICAL INFORMATION DOCUMENT

TITLE:              PTF601 - Fix screen refreshes of icons
DOCUMENT ID:        TID300034
DOCUMENT REVISION:  B
DATE:               25JAN95
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         PTF601

PRODUCT and VERSION:
UnixWare 1.1

ABSTRACT:

The ptf601 file contains PTF 601 - Fix excessive number of screen
refreshes (redrawings) of icons in a desktop folder.  The update 
contains a new dynamic library, libDtI.so, that will be installed in 
the directory /usr/X/lib.  Most, but not all, of the redundant redrawings 
have been removed.  Some limitations prevented the complete removal 
of redundant redrawings.  This PTF can be installed on systems running 
UnixWare version 1.1 and later.

SYMPTOM
     
In a desktop folder, some icons are "refreshed" (redrawn) several times, 
even though a single refresh should be adequate. This happens regardless 
of the display type (sometimes mono- vs poly-chrome makes things worse).  
For a terminal with a "slow link", which may include some X terminals, 
the multiple refreshes are obvious; for a "fast link" such as a directly 
connected X server, the multiple refreshes are much less noticeable.

SOLUTION

Apply the ptf601 file.

Installation Instructions:

DATATYPE: datastream

1.  Download the ptf601.Z and ptf601.txt files to the /tmp directory  
    on your machine.

2.  Read the release notes contained in this file.

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

     $ su
     # uncompress /tmp/ptf601.Z
     # pkgadd -d /tmp/ptf601 ptf601

Solution Specifics

General Description

These release notes detail PTF 601 - Fix excessive number of screen 
refreshes (redrawings) of icons in a desktop folder.  The update 
contains a new dynamic library, libDtI.so, that will be installed 
in the directory /usr/X/lib.  Most, but not all, of the redundant 
redrawings have been removed.  Some limitations prevented the complete 
removal of redundant redrawings.

New Features

In a desktop folder, some icons are "refreshed" (redrawn) several times, 
even though a single refresh should be adequate. This happens regardless 
of the display type (sometimes mono- vs poly-chrome makes things worse).  
For a terminal with a "slow link", which may include some X terminals, 
the multiple refreshes are obvious; for a "fast link" such as a directly 
connected X server, the multiple refreshes are much less noticeable.

This PTF eliminates many of the redundant redrawings.

Software Notes and Recommendations

This PTF can be installed on systems running UnixWare version 1.1 and later.

NOTE: This patch is replaced by update 1.1.2


Hardware notes and Recommendations

No specific hardware is required for the installation of this PTF.

Installation Instructions

The PTF is on a 3.5 inch floppy diskette in pkgadd format.  Insert the
diskette into floppy drive 1, and type in the following command at the '#'
prompt (you must be logged onto the system as root):

      #pkgadd -d diskette1

Trouble Shooting

After the installation completes, the following 2 tests should be performed to
see if the patch worked:

Case 1:   Select a non-focus item (say NEW) from a folder when an original
     focus item (say OLD) is selected.  Redundant drawings can be
     removed from both OLD and NEW.

Case 2:   Double click on a non-focus item (say NEW) from a folder
     when an original focus item (say OLD) was selected.
     Once again, redundant drawings can be removed from both OLD and NEW.