Results 1 to 5 of 5

Thread: XAA or EXA?

  1. #1
    Join Date
    Sep 2007
    Posts
    997

    Default XAA or EXA?

    I'll be installing Ubuntu 10.04 soon on my old Thinkpad.

    I went to Thinkpad forums and some users are saying they had to use XAA!

    What?!? I thought there was a transition to EXA now?

    What are you supposed to use for older hardware?!? Mobility Radeon cards in R200 to R300...R250... Radeon 7500 to 9000 cards.... Mine's a R250 / 9000.

    This problem/issue has been going on for eons... I remember way back reading long threads about what to edit xorg.conf to...to use XAA or EXA... what a mess... that's why I gave up on Linux on my laptop...

    Now, I'm using Compiz/Effects and Debian Squeeze LXDE is running okay...but, I haven't checked out graphics effects... too scared to.

  2. #2
    Join Date
    Jun 2009
    Posts
    1,106

    Default

    Quote Originally Posted by Panix View Post
    I'll be installing Ubuntu 10.04 soon on my old Thinkpad.

    I went to Thinkpad forums and some users are saying they had to use XAA!

    What?!? I thought there was a transition to EXA now?

    What are you supposed to use for older hardware?!? Mobility Radeon cards in R200 to R300...R250... Radeon 7500 to 9000 cards.... Mine's a R250 / 9000.

    This problem/issue has been going on for eons... I remember way back reading long threads about what to edit xorg.conf to...to use XAA or EXA... what a mess... that's why I gave up on Linux on my laptop...

    Now, I'm using Compiz/Effects and Debian Squeeze LXDE is running okay...but, I haven't checked out graphics effects... too scared to.
    ubuntu 10.04 already have out the box support for your card,so you dont even have to worry about that anymore

    btw XAA is legacy now, EXA is the one for newer distros (is the default now and it activates automatically now)

  3. #3
    Join Date
    May 2007
    Posts
    352

    Default

    Quote Originally Posted by Panix View Post
    I'll be installing Ubuntu 10.04 soon on my old Thinkpad.

    I went to Thinkpad forums and some users are saying they had to use XAA!
    Why? You haven't given us much to go on here...

    Adam

  4. #4
    Join Date
    May 2008
    Posts
    343

    Default

    I remember having seen lots of bug reports on older radeon cards having to use XAA but I think this has been resolved in KMS/DRI2. One example is https://bugs.freedesktop.org/show_bug.cgi?id=23660. Since Ubuntu switched to KMS for radeon by default this should not be an issue.

  5. #5
    Join Date
    Oct 2007
    Location
    Toronto-ish
    Posts
    7,386

    Default

    EXA operation in the X server wasn't able to be polished until there were enough drivers implementing EXA support. Once EXA was added to a couple of drivers some work was done on the X server to improve performance, but that happened over a period of a year or so. During that time, EXA support was available in the drivers but wasn't recommended for general use at first. A bit later EXA was ok for general use but only if you had the very newest X server code.

    These days EXA is enabled by default and should be fine for general use. The only reason to go back to XAA now would be if you had some quirky hardware (typically AGP bus problems) and needed to disable acceleration features in order to get stability, but I think there are EXA options that will work in most cases as well.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •