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Thread: HOWTO: Jaunty Intel Graphics Performance Guide

  1. #761
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    Quote Originally Posted by densou View Post
    That's it, imo .... and I doubt it will be fixed due to GMA950 (i945) hardware limitations while i965 owners need to wait a bit more. (perhaps 'til 2.9.0 ? or 3.0.0 ?)
    densou, you seem to know what you are talking about. Can you please explain something about this problem which I have not seen explained anywhere. What is this suddenly a "hardware limitation" when Virtual screen worked perfectly with EXA on intrepid and earlier ubuntu's?

  2. #762
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    This was very helpful, thanks! After this straightforward procedure (I picked the "optimal" path) my i945-equipped jaunty system went from being like molasses, to being farly snappy.

  3. #763
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    There's a problem reverting changes. How do I revert v1.7 Bleeding Edge changes?
    MacBook Air 3,1 128gb | Fujitsu Esprimo U9200 | Google Nexus One

    Pinoy ka ba? | Google Profile | Twitter: @AllanCaeg| Identi.ca: allancaeg

  4. #764
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    I'm using the bleeding-edge configuration. I noticed this in my Xorg.0.log
    Code:
    (II) intel(0): direct rendering: DRI2 Enabled
    (WW) intel(0): Option "AccelMethod" is not used
    (WW) intel(0): Option "EXAOptimizeMigration" is not used
    (WW) intel(0): Option "MigrationHeuristic" is not used
    Are those warnings normal? It says that UXA is enabled also.

  5. #765
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    Quote Originally Posted by jsday187 View Post
    I'm using the bleeding-edge configuration. I noticed this in my Xorg.0.log
    Code:
    (II) intel(0): direct rendering: DRI2 Enabled
    (WW) intel(0): Option "AccelMethod" is not used
    (WW) intel(0): Option "EXAOptimizeMigration" is not used
    (WW) intel(0): Option "MigrationHeuristic" is not used
    Are those warnings normal? It says that UXA is enabled also.
    Yes, they're normal. For older drivers which still support EXA, those options help improve EXA performance (but still don't affect UXA).

  6. #766
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    Quote Originally Posted by wersdaluv View Post
    There's a problem reverting changes. How do I revert v1.7 Bleeding Edge changes?
    Paste the output of any warnings or errors you receive after trying to revert changes. I'm not psychic, so I can't tell what's wrong on your system without some information.

  7. #767
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    Quote Originally Posted by markbl View Post
    densou, you seem to know what you are talking about. Can you please explain something about this problem which I have not seen explained anywhere. What is this suddenly a "hardware limitation" when Virtual screen worked perfectly with EXA on intrepid and earlier ubuntu's?
    From Intel notes:

    known issues
    Work in progress:
    - UXA/DRI2:
    * Virtual screen size limited to 2048x2048 for pre-965 platforms: bug #21190.

  8. #768
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    Quote Originally Posted by wersdaluv View Post
    There's a problem reverting changes. How do I revert v1.7 Bleeding Edge changes?
    There are instructions at the bottom of the guide.

  9. #769
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    Quote Originally Posted by psyke83 View Post
    psyke83, I've seen those links you posted before and they don't address what I am saying. I can only think you misunderstood my question. My point is that I have had the same laptop for a few years and run quite a few versions on ubuntu on it using a right side external monitor just fine. Now suddenly with the new Xorg and UXA, they suddenly tell me that I can't run a right-side monitor - due to "hardware limitations"! I've only changed the software - not the hardware! It doesn't make sense?

  10. #770
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    Re: HOWTO: Jaunty Intel Graphics Performance Guide

    Quote Originally Posted by psyke83 View Post
    Paste the output of any warnings or errors you receive after trying to revert changes. I'm not psychic, so I can't tell what's wrong on your system without some information.
    I was just hoping you can post the package downgrade code from v1.7, but I just thought that you might not have changed it when you posted v1.8.

    I had the Bleeding-Egde setting and wanted to revert changes so I can try the Optimal setting. When I ran the downgrade code, I had error messages saying that many of the packages do not have jaunty versions. I resorted to looking at the xorg-edgers ppa and downgrading packages I found there, that are also installed in my system, to versions from x-updates ppa. By doing that, I thought I had the Optimal version already. My system became much smoother, to my surprise.

    I just tried running the package downgrade code again to make sure I have a clean "Optimal" setting. It worked this time. I'm upgrading packages again. I hope this really makes a clean "Optimal" setting.
    MacBook Air 3,1 128gb | Fujitsu Esprimo U9200 | Google Nexus One

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