I'm now using XFree86 3.3.1 with an Alliance Semiconductor ProMotion AT24
video card (1MB). I'm trying to figure out if it is worth the trouble to
upgrade to XFree86 3.3.2. Initially I had trouble getting any
resolution higher than 640x480 to give me a stable picture but
after creating a custom modeline, I am getting a near perfect 816x612 16
bpp display. The area where it could be improved is that if there is any
significant cpu load when text in an xterm is scrolling, then some of the
characters will have a few pixels misplaced. These slightly garbled lines
will scroll up just as normal text. So I assume that the program which is
drawing the font characters is buggy. Is the responsible program XFree86?
XFree86 says that there are upgrades for the AT24 chipset in 3.3.2 which
include XAA acceleration. One of the things that is supposed to be
improved has to do with text but I didn't understand exactly what was
claimed. My question is that in light of the additional work needed to get
XFree86 3.3.2 working with Xwrapper, is it likely to really improve my
Xwindow performance?
---excerpt from the XFree86 3.3.2 documentation---
2. Acceleration
The apm driver uses the XAA (XFree86 Acceleration Architecture) in the
SVGA server. It has support
for the following acceleration:
Bitblts (rectangle copy operation)
Lines (solid, single pixel)
Filled rectangles
CPU->Screen colour expansion (text accel). Not for 6422.
Hardware cursor
All in 8, 16 and 32 bpp modes. No 24bpp mode is supported. Also VESA DPMS
power save mode is
fully supported with "standby", "suspend" and "off" modes (set with with
the "xset dpms"
command).
--
Ron Golan
[EMAIL PROTECTED]
--
PLEASE read the Red Hat FAQ, Tips, Errata and the MAILING LIST ARCHIVES!
http://www.redhat.com/RedHat-FAQ /RedHat-Errata /RedHat-Tips /mailing-lists
To unsubscribe: mail [EMAIL PROTECTED] with
"unsubscribe" as the Subject.
