Mouse cursor freezes every 10 seconds for about 0, 1 sec on i915GM

Mouse cursor freezes every 10 seconds for about 0, 1 sec on i915GM

[SD]

Dear All.

I have a small problems with Fedora 14, which was updated from rawhide.

So, my mouse cursor freezes every 10 seconds for about 0,1 second when I move it around. I opened bug - https://bugzilla.redhat.com/show_bug.cgi?id=644044, but I think I get more help here.

Using drm.debug=0x04 I found out that as soon as cursor freezes dmesg gets:
[drm:intel_crtc_cursor_set], 
[drm:intel_crtc_cursor_set], cursor off

I need some assistance because it is really annoying.

Thank you.

Re: Mouse cursor freezes every 10 seconds for about 0, 1 sec on i915GM

[Chris Wilson]

On Sun, 31 Oct 2010 03:42:48 -0700 (PDT), SD <sd.domrep@yahoo.com> wrote:
> Dear All.
> 
> I have a small problems with Fedora 14, which was updated from rawhide.
> 
> So, my mouse cursor freezes every 10 seconds for about 0,1 second when I move it around. I opened bug - https://bugzilla.redhat.com/show_bug.cgi?id=644044, but I think I get more help here.

Known issue with "hotplug" polling on those systems:

https://bugs.freedesktop.org/show_bug.cgi?id=29536

As of 2.6.36, there are two workarounds. (a) the kernel doesn't attempt
to do load-detection on your machine (the cause of the stutter), (b) there
is a module parameter (/sys/module/drm_kms_helper/parameters/poll) to
disable the polling entirely.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre

Re: Mouse cursor freezes every 10 seconds for about 0, 1 sec on i915GM

[SD]

--- On Sun, 10/31/10, Chris Wilson <chris@chris-wilson.co.uk> wrote:

> From: Chris Wilson <chris@chris-wilson.co.uk>
> Subject: Re: [Intel-gfx] Mouse cursor freezes every 10 seconds for about 0, 1 sec on i915GM
> To: "SD" <sd.domrep@yahoo.com>, intel-gfx@lists.freedesktop.org
> Date: Sunday, October 31, 2010, 1:50 PM
> On Sun, 31 Oct 2010 03:42:48 -0700
> (PDT), SD <sd.domrep@yahoo.com>
> wrote:
> > Dear All.
> > 
> > I have a small problems with Fedora 14, which was
> updated from rawhide.
> > 
> > So, my mouse cursor freezes every 10 seconds for about
> 0,1 second when I move it around. I opened bug - https://bugzilla.redhat.com/show_bug.cgi?id=644044, but
> I think I get more help here.
> 
> Known issue with "hotplug" polling on those systems:
> 
> https://bugs.freedesktop.org/show_bug.cgi?id=29536
> 
> As of 2.6.36, there are two workarounds. (a) the kernel
> doesn't attempt
> to do load-detection on your machine (the cause of the
> stutter), (b) there
> is a module parameter
> ( /sys/module/drm_kms_helper/parameters/poll) to
> disable the polling entirely.
> -Chris
> 
> -- 
> Chris Wilson, Intel Open Source Technology Centre
> 

Thank you, but what about  2.6.35.6-46.fc14.i686.PAE kernel, I do not have /sys/module/drm_kms_helper/parameters/poll.

Thanks.

Re: Mouse cursor freezes every 10 seconds for about 0, 1 sec on i915GM

[Chris Wilson]

On Sun, 31 Oct 2010 13:51:22 -0700 (PDT), SD <sd.domrep@yahoo.com> wrote:
> Thank you, but what about  2.6.35.6-46.fc14.i686.PAE kernel, I do not have /sys/module/drm_kms_helper/parameters/poll.

Petition the Fedora maintainers for a new kernel. The disable polling was
tagged for stable, iirc, so it should be appearing in a kernel update
soon.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre