Author: branden
Date: 2004-09-22 01:44:15 -0500 (Wed, 22 Sep 2004)
New Revision: 1845
Modified:
branches/debconf-overhaul/debian/xserver-xfree86.config.in
Log:
When figuring out whether the reported fbcon type supports the UseFBDev
interface, use a word-delimited match (grep -w).
Improve comments documenting UseFBDev logic.
Modified: branches/debconf-overhaul/debian/xserver-xfree86.config.in
===================================================================
--- branches/debconf-overhaul/debian/xserver-xfree86.config.in 2004-09-22
06:40:09 UTC (rev 1844)
+++ branches/debconf-overhaul/debian/xserver-xfree86.config.in 2004-09-22
06:44:15 UTC (rev 1845)
@@ -934,6 +934,9 @@
xserver-xfree86/config/device/video_ram
# Use fbcon kernel interface?
+
+ # For architectures that can use VGA BIOS-equipped video cards on the primary
+ # head, we initially assume fbcon is not in use (but see below).
set_db_priority "high"
case "$ARCH" in
alpha|hurd-i386|i386|amd64)
@@ -944,19 +947,24 @@
;;
esac
- # XXX: is this a good test for /proc being mounted?
+ # Next, check for evidence of fbcon actually being in use by the Linux
kernel,
+ # potentially changing the default we just set.
+ # XXX: Is this a good test for /proc being mounted?
if [ -e /proc/self ]; then
if [ -e /proc/fb ]; then
fb_type="$(grep '^0 ' /proc/fb | sed 's/[^[:space:]] //')"
trace "$func(): /proc/fb reports framebuffer type \"$fb_type\""
- # did we actually get back anything?
+ # Did we actually get back anything?
if [ -n "$fb_type" ]; then
+ # We know that fbcon is being used, so we can set a reasonable default.
set_db_priority "medium"
- if echo "$fb_type" | grep -Eiq '(OFfb|VESA)'; then
+ if echo "$fb_type" | grep -Eiqw '(OFfb|VESA)'; then
+ # The OpenFirmware and VESA fbcon drivers can't be externally
+ # manipulated (i.e., no UseFBDev).
trace "$func(): this framebuffer type does not support UseFBDev"
default_use_fbdev=false
- else
- # other framebuffers do support UseFBDev
+ else
+ # Other framebuffers do support UseFBDev.
default_use_fbdev=true
fi
fi
