[mythtv] State of Raspberry Pi 2 build

Peter Bennett pgbennett at comcast.net
Wed Feb 10 15:41:12 UTC 2016


On 02/10/2016 02:19 AM, Karl Dietz wrote:
> On 10.02.2016 04:06, Peter Bennett wrote:
>>
>> I am unable to run with EGLFS. On startup it displays the theme
>> background and then fails with a seg fault. Then the console is locked
>> and I have to reboot.
>
> Did that generate a core dump? Does the backtrace hint at the root
> cause?
>
> Regards,
> Karl

Hi Karl

I guess I should compile with debug turned on. I think there are several
problems with the eglfs side of things that I am concentrating on the
xcb usage, which only has 1 problem - the jerkiness with OSD. Also
MythTV normally recommends running under X so it seems that xcb is a
sensible choice.
beiklmw
Below is the back trace. Would you like me to compile with debug and try
again?

Core was generated by `/home/pi/mythtvdir/bin/mythfrontend'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x6dbb0438 in ?? () from
/home/pi/proj/mythtv-xbuild/mythtv-v0.28-pre-3529-g48ee1ab-RPI2/plugins/platforms/libqeglfs.so
(gdb) bt
#0  0x6dbb0438 in ?? () from
/home/pi/proj/mythtv-xbuild/mythtv-v0.28-pre-3529-g48ee1ab-RPI2/plugins/platforms/libqeglfs.so
#1  0x6dbb0cdc in ?? () from
/home/pi/proj/mythtv-xbuild/mythtv-v0.28-pre-3529-g48ee1ab-RPI2/plugins/platforms/libqeglfs.so
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)

The log file has several errors that seem to indicate it is still trying
to use X11, so that may be the root cause
2016-02-10 10:14:31.379553 C  MythXOpenDisplay() failed
2016-02-10 10:14:31.379750 E  ScreenSaverX11Private: Failed to open
connection to X11 server
2016-02-10 10:14:31.379779 I  ScreenSaverX11Private: DPMS is not supported.
2016-02-10 10:14:31.438553 C  MythXOpenDisplay() failed
2016-02-10 10:14:31.587646 C  MythXOpenDisplay() failed
2016-02-10 10:14:31.588286 N  Desktop video mode: 0x0 -1000000.000 Hz
2016-02-10 10:14:31.619527 C  MythXOpenDisplay() failed
2016-02-10 10:14:31.619565 E  DisplaResX: MythXOpenDisplay call failed

Peter




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