On Wed, Mar 01, 2000 at 11:55:38PM +0000, Niall mentioned:
> Backing store doesn't necessarily have anything to do with videoram.
> Having backing store available does mean what's said here i.e. that an
> obscured window doesn't have to be redrawn by its application when it's no
> longer obscured.
Hmm. /me wants an XFree86 developer to give a talk at an ILUG meeting.
> > Uses video ram like there is no tomorrow, but you gotta use it for
> > something, no ;)
> Well, presuming that the driver uses video ram for backing store. I've
> never attempted to turn it on, and on this box running SuSE 6.3 with Xfree
> 3.3.5 it's turned on. I've just checked my cruddy old Toshiba T4900
> notebook which has a 640x480 screen and all of 1M of video ram running
> Mandrake 5.3 with XFree 3.3.3 - it too has backing store. I just had a
> quick look at the man page for XF86_SVGA and +bs is not a mentioned
> option. I'm just wondering - didn't you mention, Kate, that you're using
> XFree 3.9.xx - perhaps +bs is a new switch which means to use videoram for
> backing store ? Can anyone shed some more light on this ?
Just checked. If you do X --help, there is a -bs option on 3.3.5 - to
disable it. Must mean that it's enabled by default on 3.3.x. Wierd. Must
mean the ram saving & speedup is just from the new version of X. Cool.
Wonder is the fact that it's disabled by default mean that it's buggy or
"not good" for some reason.
Kate
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!
