On Tue, Dec 13, 2005 at 01:02:04PM +0100, Attilio Fiandrotti wrote: > Sven Luther wrote: > >> echo "no-hardware" >>/etc/directfbrc > >>else > >> for driver in $BAD_LIST; do > >> if [ $(dmesg|grep $driver |wc -w) -gt 0 ];then > > > > > >I am not sure if dmesg + grep + wc is the best way to do this, but i also > >don't know how to best map the /proc/fb entries to module names, but we > >have > >this one, as well as : > > > > /sys/bus/pci/drivers/adeonfb/0000\:00\:10.0/graphics\:fb0 > > > >Which needs a 2.6 kernel though, but i don't think we are building 2.4 > >graphical d-i anyway. > > ok, so i suppose checking if /sys/bus/pci/drivers/<broken fbdev device>
Yep, in the general case, it should be possible to have multiple graphic cards, and the broken one not being the one used for booting d-i. Also, of interest is : /sys/class/graphics/fb0, which has a device/driver symlink to the above path you suggest, but i don't know how to find the radeonfb driver name information from this one, which sucks. > exist is enough to tell if HW acceleration has to be disabled. > Below is the same script reworked after your and Geert Stappers's > corrections. > The user, to manually disable DFB HW acceleration, should boot with > something like "install NO_DFB_ACCELERATION=TRUE" and this should be > documented in the d-i manual and/or in the help screen that you see when > you press F2 at boot time. Yeah, altough i prefer the lower-case new option format thingy, but maybe they are reserved for debconf variables ? dfb/no_accel=true ? Do we have access to debconf already at this early stage ? > Where this piece of code should be collocated? inside a new "Sxx.sh" > script or should be better appended to > /lib/debian-installer.d/S35framebuffer-linux or some other already > existing script? Not sure, it has to run early enough (before gtkdi is launched) and late enough (after the framebuffer drivers have been loaded. Maybe adding ti to S35framebuffer-linux is a good thing. > Note that the list of bad fbdev deviced is hardcoded inside this script: > is this a good idea? but i have no idea of where else those could be > listed.. It should be a preseedable debconf value maybe, not sure, see my above comment, dfb/bad_fbdevs="nvidiafb atyfb" would be a good idea. Maybe we could reverse the script and whitelist the known good graphic cards though, with : dfb/good_fbdevs="radeonfb vesafb" ? Friendly, Sven Luther -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]