Hardware Release Notes
6.10 ATI RADEON 7500 Graphics
If you do not have SYS$MANAGER:DECW$PRIVATE_APPS_SETUP.COM, you
can create this command procedure from SYS$MANAGER:DECW$PRIVATE_
APPS_SETUP.TEMPLATE.
After editing SYS$MANAGER:DECW$PRIVATE_APPS_SETUP.COM, restart
DECwindows with the following command:
$ @SYS$MANAGER:DECW$STARTUP RESTART
6.10.7 Monitor Must Be Connected During Initialization
The RADEON 7500 graphics card has two video output ports: one for digital and
one for analog. The digital interface is not currently supported. However, using a
digital-to-analog adapter, you can plug an analog monitor into the digital port and
get the identical output that you get using the analog port. If you use the digital
port, the monitor must be attached before the system is powered up in order for
the port to function correctly.
6.10.8 Boot Reset Recommendation (Alpha Only)
HP recommends that the console variable
boot_reset
be set to ON.
6.10.9 No Overlay Planes
Hardware overlay planes are not supported.
6.10.10 Single Colormap
The RADEON 7500 graphics controller supports only one hardware colormap.
Keep this in mind if you change to the 8-bit color depth, where the default visual
is PseudoColor. Attempting to use more than one PseudoColor colormap at a time
causes colormap flashing.
Note
3D (OpenGL) rendering is not supported on 8-bit PseudoColor visuals.
(See also Section 6.10.16.)
Applications should not install or deinstall colormaps themselves. The
window manager should perform these actions. However, the application
is responsible for providing the window manager with hints about which
colormaps to install or deinstall. You provide this information using the Xlib
function XsetWMColormapWindows( ). This function sets the WM_COLORMAP_
WINDOWS property for a given window.
6.10.11 Single Bit Depth for All Windows
When you are using the RADEON 7500 card, all windows created on a particular
head must have the same bit depth. The RADEON 7500 card supports bit depths
of 8, 16, and 24 bits per pixel on any graphics head, but once the DECwindows
server establishes a bit depth on a particular head, only windows or visuals with
that bit depth can be created.
Hardware Release Notes 6–11
