[mythtv-users] nvidia 280.13 segfaulting with UseEvents under xorg-server-1.10.4?

[Tom Dexter]

On Sun, Sep 25, 2011 at 12:02 PM, Richard Shaw <hobbes1069 at gmail.com> wrote:
> On Sun, Sep 25, 2011 at 8:24 AM, Tom Dexter <digitalaudiorock at gmail.com> wrote:
>> I just upgraded my Gentoo mythtv machines, including an upgrade to
>> x11-base/xorg-server-1.10.4 which , as far as I understood, requires
>> the nvidia 280.13 drivers.
>>
>> I was already using the 280.13 drivers under xorg-server-1.9.5.  After
>> the 1.10.4 upgrade, X was getting "Segmentation fault at address
>> 0x130".
>>
>> Commenting out the nvidia UseEvents option in xorg.conf seems to
>> prevent that.  Anyone else run into that?  I'm a little concerned, as
>> I've been using the UseEvents option since I built that system,
>> although things seem to be working fine.
>
> I haven't been getting segfaults but I haven't been real impressed. I
> keep getting occasional pauses/glitches during playback. I'm used to
> it for OTA ATSC playback but this seems to happen in regular intervals
> and there's no video corruption. I'm hoping the next driver release
> fixes it.
>
> Richard

Oddly enough, everything with mine seems to be working quite well.
Playback is as good as ever...cpu usage looks great etc.

It just unnerves me to disable UseEvents as I've always had it
enabled, and over the years I seem to recall hearing endless reasons
why you should have it enabled.  That's definitely the culprit though.
 Here's what I get if I enable it.

[  1856.583] (II) NVIDIA(0): Setting mode "1920x1080"
[  1856.657]
Backtrace:
[  1856.657] 0: /usr/bin/X (xorg_backtrace+0x37) [0x80a1457]
[  1856.657] 1: /usr/lib/xorg/modules/drivers/nvidia_drv.so
(0xb4e5d000+0x64211c) [0xb549f11c]
[  1856.657] Segmentation fault at address 0x130
[  1856.657]
Fatal server error:
[  1856.657] Caught signal 11 (Segmentation fault). Server aborting
[  1856.657]
[  1856.657]
Please consult the The X.Org Foundation support
	 at http://wiki.x.org
 for help.
[  1856.657] Please also check the log file at "/var/log/Xorg.0.log"
for additional information.
[  1856.657]

I reported it on the nVidia linux forum:

http://www.nvnews.net/vbulletin/showthread.php?t=166697

Tom