Help Wanted: Testing Mesa 7.6 in Karmic

Ara Pulido ara at
Thu Oct 8 11:43:53 BST 2009

Hello all,

As Bryce said, mesa 7.6.0 has arrived to Karmic. We need as much testing 
as possible from people with different hardware.

I have set up a wiki page to gather information about people who are now 
using the latest mesa in Karmic.

It also includes links to the bugs already filed upstream.

If you want to help testing the new version of mesa, these are the steps 
to follow:

  * Upgrade to the latest version of mesa in Karmic repository
  * Find the exact model of your video card:

    $ lspci -vvnn | grep "VGA compatible controller"

  * Add yourself to the list of testers at:

  * If you encounter any bug, report it against xorg

    ubuntu-bug xorg

  * Add the links of the bugs found to the wiki page


On 07/10/09 23:50, Bryce Harrington wrote:
> Hi all,
> According to our previous plans, we've gone ahead with uploading mesa
> 7.6.0 for Karmic.  We would appreciate your extra attention given to
> testing 3D functionality this coming week.
> Upstream's release notes:
> mesa 7.6 brings improved OpenGL support to Radeon R200/R300 and Intel
> i915/i945 which should improve 3D functionality for users of older
> hardware.  It also provides a huge number of bug fixes; in particular it
> solves many issues we've seen with KMS on -ati.
> Please file bugs for any issues you encounter with this new mesa version
> by running:
>    ubuntu-bug xorg
> For some added background, we've known that 7.6.0 would hit around
> beta time.  We decided at the outset that it was probably worth the
> risk, and we've been carefully tracking git snapshots of it all along.
> Still, given the lateness in the cycle we have had worry that any change
> at this brings some risk, with minimal time to recover.
> But fortunately we have a pretty solid X stack now, and can afford to
> take some risk.  We have a good fallback to revert to if we need it, and
> the upside here is an even more solid X stack with better 3D and OpenGL
> behavior for a lot of users.  The evidence we have on hand from testers
> indicates this to be safe.  If additional evidence proves this to be
> false, we are prepared to revert back to the git snapshot from August.
> Bryce
> FAQ's:
> ======
> Q: Does this mean KMS will be available on -ati?
> A: This pulls in a number of bug fixes for KMS on -ati, but does not set
> it as the default.  Turning it on requires a kernel parameter be set.
> You can test it by booting with the 'radeon.modeset=1' kernel option.
> Q: Will libdrm, -intel, or xserver be updated as well?
> A: Those are unrelated to this upload and will each be evaluated
> separately in turn.  Those three are pretty much just bug fix releases;
> worst case is we can cherrypick patches from them as necessary.
> Q: Didn't a late-in-the-release mesa update break Jaunty?
> A: No, as it turned out.  We had updated mesa right prior to when a
> bunch of X freeze bugs were reported, so it looked very suspicious.
> However, the freezes still occurred even after downgrading mesa.  In the
> end, the X freezes were fixed by changes in the Karmic kernel's DRM
> code.
> Q: How do I downgrade to the earlier mesa version?
> A: I will be uploading the prior version to x-retro later today:
> Q: Are even newer versions available?
> A: Snapshots of the 7.7 development tree are being provided in
> xorg-edgers:

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