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    SubjectRe: [Regression] [Radeon] Stream command failures and render problems in Evergreen (Radeon HD 5600) in kernel 3.4
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    On Fri, Jun 8, 2012 at 6:13 AM, Brian Gitonga Marete <marete@toshnix.com> wrote:
    > On Fri, Jun 8, 2012 at 12:56 AM, Brian Gitonga Marete
    > <marete@toshnix.com> wrote:
    >> On Fri, Jun 8, 2012 at 12:44 AM, Brian Gitonga Marete
    >> <marete@toshnix.com> wrote:
    >>> On Thu, Jun 7, 2012 at 11:20 PM, Jerome Glisse <j.glisse@gmail.com> wrote:
    >>>> On Thu, Jun 7, 2012 at 3:59 PM, Brian Gitonga Marete <marete@toshnix.com> wrote:
    >>>>> On Thu, Jun 7, 2012 at 5:25 PM, Jerome Glisse <j.glisse@gmail.com> wrote:
    >>>>>>
    >>>>>> Update your libdrm to libdrm from git should fix your issue.
    >>>>>
    >>>>> Hello Jerome,
    >>>>>
    >>>>> Thanks for looking into this.
    >>>>>
    >>>>> I am afraid that even with the very latest libdrm (git 93a5117d), the
    >>>>> rendering is still broken.
    >>>>>
    >>>>> What else should I try? I would revert the patch that git-bisect
    >>>>> fingered (your patch, git 285484e2d, Linux mainline) but there are
    >>>>> merge problems when I try to do that, which I have not yet looked
    >>>>> into. Perhaps you can see if you can help me revert that patch so that
    >>>>> we can see if the problem then goes away?
    >>>>>
    >>>> What happen if you upgrade to xf86-video-ati from git ?
    >>>
    >>> Hello Jerome,
    >>>
    >>> Once again, thanks a lot for your help.
    >>>
    >>> Some progress but also a setback: Upgrading to the latest
    >>> xf86-video-ati git gets rid of the stream command failures - No more
    >>> error messages in dmesg(8). But then, now, rendering is completely
    >>> messed up. Previously, it was mostly the window boundaries that were
    >>> blurred/messed but now also entire windows and text so that you can't
    >>> read anything from the desktop. (For example, the previous render
    >>> problems would still allow me to use gnome-terminal even though its
    >>> frames were completely blurred. Now the text withing gnome-terminal is
    >>> also blurred/smudged)
    >>>
    >>
    >> I should add that in this case rendering is completely messed up in
    >> _both_ 3.3.x and 3.4. But the stream command failures in 3.4 go away
    >> upon upgrading to the latext xf86-video-ati git HEAD.
    >
    > Ok. All is fixed in kernel v3.4 if I additionally upgrade Mesa to the
    > latest git. Jerome, many thanks for your help on this!
    >
    > So to summarize, the 3.4 breakage in Ubuntu 11.04 (and probably other
    > distributions released around the same time) is fixed by:
    >
    > a) Upgrade libdrm to latest GIT as of this writing (93a5117d5)
    > b) Upgrade xf86-video-ati to latest GIT as of this writing (5888371)
    > c) Upgrade mesa to latest GIT as of this writing (529476b)
    >
    > Now kernel 3.4 works on my laptop.
    >
    > Thanks!
    >
    > BGM.

    Brian can you please test patch below on 6.14.0 ddx and old mesa (ie
    revert to ubuntu mesa & ddx) and report if it fix your issue. Thanks

    http://people.freedesktop.org/~glisse/0001-drm-radeon-fix-tiling-and-command-stream-checking-on.patch

    Cheers,
    Jerome


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