Re: [ANNOUNCE] xf86-video-intel snapshot: 2.13.901

[Stefan Dirsch <sndirsch@suse.de>]

On Fri, Nov 05, 2010 at 01:02:33PM -0700, Carl Worth wrote:
> This is an intermediate snapshot of ongoing driver development. The
> primary purpose of this snapshot is to capture some recent
> improvements, (particularly in Sandybridge support), for further
> testing.
> 
> As always, we look forward to any results from testing.

Thanks for doing a prerelease, Carl. AFAICS it fixes a lot of issues. One
issue I noticed. Kernel 2.6.36+ appears to be a requirement for this
release. With Kernel 2.6.34.7 the result is a black screen with the never
ending error message:

(EE) intel(0): Failed to submit batch buffer, expect rendering corruption or
even a frozen display: No such device.

This is confirmed for GM45/965GM/Pineview. Is this requirement intentional or
could it be considered a bug? libdrm is at commit a52e61b. Maybe the latest
commit in libdrm fixes it?

commit 49447a9b957047db2549b8a929e763bbd87808ba
Author: Albert Damen <albrt@gmx.net>
Date:   Sun Nov 7 15:54:32 2010 +0100

    intel: initialize bufmgr.bo_mrb_exec unconditionally
    
    If bufmgr.bo_mrb_exec is not set, drm_intel_bo_mrb_exec returns ENODEV
    even though drm_intel_gem_bo_mrb_exec2 will work fine for the RENDER ring.
    Fixes xf86-video-intel after commit 'add BLT ring support' (5bed685f76)
    with kernels without BSD or BLT ring support (2.6.34 and before).
    
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31443
    Signed-off-by: Albert Damen <albrt@gmx.net>
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

Thanks,
Stefan

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