Technical data
Hardware Release Notes
B.1 ALPHAbook 1 (Alpha Only)
$ define dcl$path sys$etc
$ scsi_mode -devnam dka0 -devtyp DVAS-2810 -offset f 01 -page 38 -mount -save
$!
$! Processing Page #38h
$!
$! Cur 00___ ___ 04______ 08______ 0C______ 10______ 14______ 18______ 1C______
$! 0000 11000008 001829D0 00000200 B80400B4 0000
$!
$! Chng 00______ 04______ 08______ 0C______ 10______ 14______ 18______ 1C______
$! 0000 11000008 001829D0 00000200 B80400FF 0000
$!
$! Sel 00___ ___ 04______ 08______ 0C______ 10______ 14______ 18______ 1C______
$! 0000 00000008 001829D0 00000200 38040001 0000
$! Perform MODE SELECT to page 38h [y/n] ? y
B.1.2 Naming Serial Line Devices
If an ALPHAbook 1 notebook computer is booted with the console environment
variable set to graphics, the name of the serial line (COM1) will be different. On
an ALPHAbook 1, the COM1 device is called TTA0.
The COM1 device is controlled by SYS$YSDRIVER instead of SYS$OPDRIVER.
If the console is set to serial, the device is called OPA0.
B.1.3 Graphics Display Modes
The ALPHAbook 1 notebook computer contains a Western Digital 90C24A
graphics controller displayed on a 10.4-inch active matrix Thin Film Transistor
(TFT) display.
Note that if a video monitor (CRT) is connected, the DECwindows display server
software (which automatically detects the presence of an attached video monitor)
sets the resolution to 1024 x 768 and disables the TFT display. If the server
determines that no monitor is connected, it forces the size to match the LCD (800
x 600) and disables the CRT outputs (which saves power when the computer is
running on battery).
B.1.4 Customizing the Graphics Display
You can override the size selection by modifying the
SYS$MANAGER:DECW$PRIVATE_SERVER_SETUP.COM file.
You can also modify other parameters by using the DCL command
DEFINE/SYSTEM for the following logical names:
• DECW$SERVER_DYNAMIC_SIZE
If defined as TRUE, you are prompted for the screen size when the system
boots. The prompt times out in 10 seconds and the default is set (unless you
have overridden the default in your private server setup).
• DECW$SERVER_DISPLAY_SELECT
You can specify one of the following values:
Value Result
1 LCD-only operation
2 CRT-only operation
3 Simultaneous operation
B–2 Hardware Release Notes