Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 26 Mar 2015 14:37:36 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Jakob Alvermark <jakob@alvermark.net>
Cc:        freebsd-x11 <freebsd-x11@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: [Call for testers] DRM device-independent code update to Linux 3.8 (take #2)
Message-ID:  <CAJ-VmokW0wh_JMC%2B0RiN2kCusrTWJ8dqFxwOF9RQZEgvFxW5Ng@mail.gmail.com>
In-Reply-To: <18597.85.229.93.187.1427403630.squirrel@webmail.alvermark.net>
References:  <54F636B3.90701@FreeBSD.org> <20150307111305.10d7678d@kan> <CAOFF%2BZ3ZDjt4nTcyV%2B9_GZvexsbFBYz84q-J79tcUue9jx6NEQ@mail.gmail.com> <5510A1E3.9040603@selasky.org> <18597.85.229.93.187.1427403630.squirrel@webmail.alvermark.net>

next in thread | previous in thread | raw e-mail | index | archive | help
Is there a PR filed with this?


-a


On 26 March 2015 at 14:00, Jakob Alvermark <jakob@alvermark.net> wrote:
> On Tue, March 24, 2015 00:29, Hans Petter Selasky wrote:
>> Hi,
>>
>>
>> Without the attached kernel patch(es), Xorg starts consuming alot of CPU
>> and becomes very unresponsive and unusable.
>>
>> Using ktrace reveals that X-org is issuing DRM_IOCTL_MODE_GETCONNECTOR
>> over and over again with no apparent reason. It doesn't happen when using a
>> simple window manager like blackbox. I was not able to use XFCE4 (9-stable
>> userland) with 11-current kernel at all, after the latest DRM2 kernel
>> updates. It worked fine before the update.
>>
>> I'm not sure what is causing it. Going through the new DRM2 code
>> revealed that a mode sorting function did not take all parameters like
>> interlaced or not into account, causing the mode list to be reshuffelled
>> every time a new mode scan was done. Not sure if Xorg cares about this
>> though.
>
> I got the same problem with XFCE4, Xorg at 100% CPU.
>
> Applied the patch and it works again.
>
> Jakob
>
>
> _______________________________________________
> freebsd-current@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAJ-VmokW0wh_JMC%2B0RiN2kCusrTWJ8dqFxwOF9RQZEgvFxW5Ng>