DECwin, Motif VAXDECW11_U2055 DECwin Server V5.4-3-V5.5-2H4 ECO Summary
Copyright (c) Digital Equipment Corporation 1994. All rights reserved.
OP/SYS: OpenVMS VAX
COMPONENT: VMS DECwindows
SOURCE: Digital Equipment Corporation
ECO INFORMATION:
ECO Kit Name: VAXDECW11_U2055
ECO Kits Superseded by This ECO Kit: DECW$05_U1055
ECO Kit Approximate Size: 13,410 Blocks
Kit Applies To: OpenVMS VAX V5.4-3, V5.5, V5.5-1, V5.5-2, V5.5-2H4
System Reboot Necessary: Yes
NOTE: DECWindows kits no longer support versions of OpenVMS VAX prior to
V5.4-3. If the fixes in this kit are required for a version of
OpenVMS VAX that precedes V5.4-3, it is highly recommended that you
upgrade to a later, supported version.
ECO KIT SUMMARY:
An ECO (patch) kit exists for Motif V1.0 through V1.1 and DECwindows
on OpenVMS VAX V5.4-3 through V5.5-2H4.
This kit addresses the following problems:
LCG issues:
o The end points for wide lines were projected/joined
incorrectly with the LCG display server (4000 class
workstations). The effect was that endpoints for certain
lines were projected beyond the join (such as JoinBevel)
resulting in pixels being drawn in the wrong location. Under
certain conditions, stray pixels remained on the screen.
o The DECwindows LCG X11 display server did not return the
correct values for XQueryBestSize() requests specifying
CursorShape.
o The DECwindows LCG X11 display server would sometimes ACCVIO
when using tiles. The problem was typically seen when
replicating very small tiles.
o Under certain conditions, the DECwindows LCG X11 display
server did not handle caps correctly on thin dashed lines.
The problem was most visible when the last point before the
cap was the last pixel of the last value in the dash list.
SPX issues:
o On LCSPX systems, tiled rectangles and other tile/non-tiled
operations were not drawn correctly to occluded portions of
windows with backing store enabled.
o For applications continually reusing a 32X32 tile on SPX
systems, the tile could become corrupted and drawn
incorrectly.
o Applications displaying on SPX systems and using a large
number of medium size pixmaps caused offscreen memory to be
corrupted. This often resulted in a server crash.
o Under certain conditions, the SPX server displayed the wrong
color and incorrect dash patterns when drawing dashed lines.
This resulted in a display that was not readable.
GPX issues:
o The VAXstation II/GPX server did not correctly load cursor
colors. Attempts to change the cursor color resulted in an
incorrect color.
o The DECwindows GPX X11 display server crashed whenever a
client attempted an XPutImage with a GC that had linewidth =
0 and linestyle = LineDoubleDash.
Monochrome Frame Buffer (MFB) issues:
o On Monochrome (MFB) systems, when sliding the thumb on an XUI
scrollbar widget, garbage would appear elsewhere in the
window.
o FillRects drawn with an MFB server with a negative width
and/or height did not get clipped against the drawable. The
DECwindows X11 display server then crashed when it attempted
to write beyond frame buffer memory.
Firefox issues:
o The firefox drivers did not always respond correctly to
screen saver set and reset requests.
Input (mouse, keyboard) issues:
o Autorepeat worked incorrectly when a down/up key that does
not autorepeat was pressed. The clearest example of this is
to press and hold it down, then press and release an
ARROW key. This resulted in the autorepeating.
o When using a 2 or 4 button input device (puck or stylus), the
server assumed a 3 button device was is use after logging
out. This meant that buttons 1, 2 and 3 would work, but not
button 4 when ending a session.
o For workstations running SoftPC and using the graphics head
as the console, keyboard problems could occur whenever the
DECwindows X11 display server was shutdown. Duplicate
characters were echoed back to the console.
o On VAXstation 4000 workstations using the graphics head as
the console, pressing the HALT button and typing CONTINUE at
the console prompt left the keyboard in a reset state. In
this state, the keyboard would sometimes autorepeat.
o Any mouse movement while in emulation mode canceled the
pseudo mouse button latch down state.
o "Lock" and "Hold Screen" lights remained "ON" after the
DECwindows X11 display server was reset (end session). The
result was a keyboard and server that were out of sync.
o The DECwindows X11 display server did not correctly track the
state of the keyboard mode-switch function. The problem was
most visible when using DECwindows with Asian style
keyboards.
Font issues:
o The DECwindows X11 display server assumed that XQueryFont
requests from clients were always valid. In some cases,
invalid XQueryFont requests caused the server to crash.
o If a client tried to use XSetFontPath to set or add a path
which is invalid (ie. a UNIX-style dirspec), the server
would no longer be able to find any fonts, even if valid
paths exists in the font directory list. This behavior
sometimes lead to other problems such as a server crash.
DECwindows Color Database changes:
o A new color database exists for the OpenVMS VAX DECwindows
X11 display server. The color database uses the
MIT-compliant data file format, rather than the specific
logical name format. The SYS$MANAGER:DECW$RGB.COM file has
been replaced with the SYS$MANAGER:DECW$RGB.DAT file.
Logicals associated with color in the DECW$SERVER0_TABLE have
been removed.
The features of the color database include the following:
- Saves system memory by eliminating over 400 logical names
from the DECW$SERVER0_TABLE logical name table
- Improves the speed for color lookup
- Is compatible with most other X Server implementations
The colors are the same in the new database, however the
format for color definitions has changed. The new database
format uses 8-bit values. For example, the definition for
white is 255 255 255. Previously, the format used 16-bit
values, where the definition for white was 65535,65535,65535.
Color specification is not lost because the X11 display
server has always used 8 bits for named color values. The
previous logical-name color scheme is used when a specified
color is not available in the updated color database. Colors
defined using the previous format will continue to work.
Backing store issues:
o Under certain conditions, resizing a backing-stored window
beyond the screen boundaries resulted in a corrupt window.
Display Postscript (DPS) issues:
o In some situations, the Display Postscript extension did not
display text on a rotated page. In addition, text on the
edge of a window border was sometimes not displayed.
o An updated DPS kernel has been integrated into the DECwindows
X11 Display Server DPS extension. The new DPS kernel has
resolved a number of server crashes that occurred within the
DPS code.
o Under certain conditions, the DPS extension caused the
DECwindows display server to crash when displaying a
postscript file from a non-VAX system onto a VAX workstation.
X Image Extension (XIE) issues:
o The XIE extension would sometimes ACCVIO when scaling with
certain scaling factors. This resulted in a server crash.
o If the XIE extension was presented a G42D compressed image
which contained fewer scanlines than declared in the image
attributes, unpredictable results occurred. This sometimes
resulted in a server crash.
Miscellaneous issues:
o The DECwindows X11 display server could ACCVIO when a fake or
null client thread that was the currently executing client
was aborted. This resulted in a server crash.
o If an application/client ignores a critical error status
returned by the DECwindows X11 display server and continues
using the bad resource to do drawing operations, the server
could crash.
o Calling XDrawText (an 8 bit font drawing call) with a 16 bit
font caused the DECwindows X11 display server to ACCVIO and
crash.
o Poly-widelines drawn using certain GC functions caused the
line to erase itself at joins and intersections.
o The DECwindows X11 display server did not draw zero-width
arcs correctly whenever the arc started or ended near octant
boundaries.
o The DECwindows X11 display server imposed the range for the
usable keycodes for the keymap to be between 86 to 251.
According to the X11 protocol, this range should be from 8 to
255. The range has been extended to comply with the X11
protocol.
o The DECwindows X11 display server would crash when drawing
widearcs covering more than 2048 spans.
o Under certain condition, the DECwindows X11 display server
would crash when zooming on certain objects. The object
could be text or some other object treated as text by the
server.
o Starting point conditions for zero-width dashed arcs could be
invalid for specific combinations of arc coordinates and dash
attributes. This resulted in a server crash.
o The DECwindows X11 display server crashed when attempting to
draw arcs in JoinRound rectangles. The server would always
attempt to draw in the wrong quadrant when drawing these
types of rectangles.
PROBLEMS FIXED IN THE PREVIOUS KIT
LCG issues:
o Drawing horizontal thin lines with the LCG server
sometimes caused the server to crash with an ACCVIO.
o The VMS V5.5 LCG server did not properly handle the
subwindow mode of IncludeInferiers correctly.
o 4 head LCG systems did not get cursor correct on second
head (head #1) of the four heads.
o On LCG systems under VMS V5.5, when using XDrawLines with
coordinate mode CoordModePrevious and a large number of
points were specified, some points would be drawn at the
wrong coordinates.
o In the VMS V5.5 X11 Display Server for VAXstation 4000s
(LCG), there was a bug in the lines and segments routines
which caused lines and segments with coincident end points
to be drawn incorrectly. The effect was that dots were
left behind when dragging objects which were drawn using
vectors.
SPX issues:
o Ctrl F2, halt or console output could cause the server to
hang on any SPX machine.
o An access violation occurred when using large amounts of
off screen memory.
o If x or y position of a character string was very
negative, the screen would go black.
o Thin triangles were sometimes drawn incorrectly.
o Screen corruptions could occur for applications that used
backing store.
o Screen corruptions could occur while running PEX
applications on SPX.
o When using backing store you could sometimes see vertical
stripes in your window.
o Applications which use large clip lists could appear to
hang the server for a time.
o Keyboard auto repeat was not controllable using
XChangeKeyboardControl.
o If there was insufficient memory for any part of pixmap
allocation, the SPX server would crash.
Display PostScript (DPS) issues:
o The DPS extension did not clean up the DPS space properly
when the user destroyed space. Since the DPS kernel
imposes an implicit limit of 100 context/space in total
internally, eventually the kernel would return null
context to a CreateContext call. This problem caused CDA
Viewer to hang.
o The DPS extension did not load type 3 fonts correctly.
Often when loading multiple type 3 fonts, the server would
accvio.
Monochrome Frame Buffer (MFB) issues:
o ImageText8 requests of >100 characters caused the MFB
server to crash.
o Server sometimes crashed on MFB machines when running
DECdesign.
o The MFB server crashed when any filled trapezoid was
clipped on the left screen boundary. Corruption also
occurred clipping on bottom screen boundary.
Input (mouse, keyboard) issues:
o Selective autorepeat (using XChangeKeyboardControl with
both KBKey and KBAutoRepeatMode masks) was not working
correctly on keys that the driver uses hardware autorepeat
for (e.g. 'a' thru 'z').
o The Austrian German keymap file was generating incorrect
keysyms for some keys. In addition, the keyboard would
not produce lower case letters.
o If a cursor color update occurred when colormaps had been
changed, colormap update might not have occurred.
o A timing problem in the VAX/VMS X11 Display Server
sometimes caused apparent server hangs upon the first
several mouse button presses of a login session. This
problem could occur on all VAX/VMS DECwindows workstation
platforms, but was most evident on faster systems such as
the VAXstation 4000 family of workstations.
o Some non-US keyboard selections (e.g., Spanish) would
cause DECwindows to crash the system on startup.
o Autorepeating the 2nd keycode of a I18N keybinding
sequence in some DECwindows environment could cause the
system to hang.
Font issues:
o Users running Sun's OpenLook Window Manager or OpenLook
clients to the VMS X11 Display Server would sometimes
encounter problems, since VMS did not supply the OpenLook
fonts. These fonts are now provided. Screen on a
multi-head system could go blank permanently even when the
mouse is moved.
o Customers received errors when attempting to load German
font alias file DECW$FONT_ALIAS_GS_100DPI.DAT.
o When making an 8-bit font request on a 16-bit font, the
server should still allow you to access the first row of
the font. Attempts to do so could cause a server crash.
Backing store issues:
o No drawing was done to the backing store when the window
was partially or totally off the to the left and top of
the screen. When the window was brought back on screen,
the part of the window that was offscreen contained trash.
o When a window had both IncludeInferiors and backing store
turned on, the incorrect clip lists were used in drawing,
therefore drawing did not occur into backing store where
the window was occluded by siblings. This caused old
screen contents to be restored to the screen when the
window was unoccluded.
Miscellaneous issues:
o It is now possible to set the monitor density separate
from the server density using the DECW$MONITOR_DENSITY
logical. The value defaults to the value of the server
density. Since the server cannot scale fonts however,
setting this value far different from the font size can
cause problems with WYSIWYG applications.
o Various byte swapping problems that caused
interoperability issues.
o If there were windows on the screen with multiple
colormaps, changes to the window stacking order would
create visible flashing on the screen.
o Points were not drawn correctly with negative coordinates
using CoordModePrevious.
INSTALLATION NOTES:
In order to make use of the fixes within this remedial kit, you must reboot
the system used for installing the software. In addition, any other
VAXcluster WORKSTATION nodes using the same system disk used for installing
the software must also be rebooted.
NOTE: VAXDECW11_U2055 can be installed on systems running VMS DECwindows
or VMS DECwindows Motif.
This kit should be re-applied after any OpenVMS VAX upgrade/update
to OpenVMS VAX V5.4-3 through V5.5-2. If DECwindows Motif is
upgraded to V1.0A or V1.1, this kit does not need to be re-installed
unless VMS is upgraded to OpenVMS VAX V5.4-3 through V5.5-2 at the
same time.
REFERENCE(S):
[R] Motif is a registered trademark of Open Software Foundation, Inc.
[R] Sun is a registered trademark of Sun Microsystems, Inc.
This patch can be found at any of these sites:
Colorado Site
Georgia Site
Files on this server are as follows:
vaxdecw11_u2055_decwindows.README
vaxdecw11_u2055.CHKSUM
vaxdecw11_u2055.a-dcx_vaxexe
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