Re: F22 Beagleboard XM kernel error on shutdown and x11vnc

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On 5/29/15 8:37 PM, Peter Robinson wrote:
> On Sat, May 30, 2015 at 1:31 AM, Scott M. Jones <scott@xxxxxxxx> wrote:
>> I'm running F22, LXDE spin, on a Beagleboard XM rev B, and if uptime is
>> greater than about 15 minutes, I get this error repeatedly on shutdown
>> (with increasing timestamps) and the board becomes unusable until reset.
>>
>> [ 3505.530151] [drm:omap_irq_handler [omapdrm]] *ERROR* gfx: errors:
>> 00000040
>>
>> I've also seen this happen when I tried to connect via x11vnc, even
>> though lxdm and X are running and x11vnc starts OK.
>>
>> Also, I'm not getting any output on the HDMI port.  I'm not getting any
>> HDMI output on F21 (with kernel 4.x) either now, but at least I can
>> connect via x11vnc (same setup I'm using on F22).
>>
>> Both were yum/dnf updated today.
>>
>> I did boot the reference Angstrom release with the board to make sure
>> the HDMI cable and TV were OK, and they are just fine.  F21 used to work
>> a few months ago via the HDMI port.
>>
>> Any suggestions?
> 
> Maybe try with a 4.1 kernel to see if the problem is improved/fixed there.
> 
> http://koji.fedoraproject.org/koji/buildinfo?buildID=638858

The error handling is better with the new kernel, but unfortunately I'm
getting the same error.  I did see a traceback fly by.  Does it help to
have this or report this somewhere?

I suspect it is a problem between the X server and kernel.  If I disable
lxdm and reboot first, I can shut down just fine with no errors even
after some time has passed.

-Scott

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