<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><div style="font-size: 10pt;"><div><br></div><div><br></div><div data-zbluepencil-ignore="true" style="" class="zmail_extra"><div><br></div><div id="Zm-_Id_-Sgn1">---- On Fri, 14 Aug 2020 14:33:09 +0100 <b>Mike Bibbings <mike.bibbings@gmail.com></b> wrote ----<br></div><div><br></div><blockquote style="border-left: 1px solid rgb(204, 204, 204); padding-left: 6px; margin: 0px 0px 0px 5px;"><div><div class="x_1459140621moz-cite-prefix">On 14/08/2020 13:33, Tim Draper wrote:<br></div><blockquote><div style="font-size: 10.0pt;"><div>just updated one of my rpi4's and i'm now getting segfault.
running raspbian, upgrade done via 'apt upgrade'.<br></div><div>Mythtv is setup from PBennets rpi repo, latest version is
v31.0-54-g445cf1fe6b.<br></div><div><br></div><blockquote style="border: 1.0px solid rgb(204,204,204);padding: 7.0px;background-color: rgb(245,245,245);"><div><div>$ QT_QPA_PLATFORM=eglfs mythfrontend --logpath=/tmp -O
libCECEnabled=0<br></div><div>Failed to move cursor on screen HDMI1: -13<br></div><div>2020-08-14 13:24:22.439101 I Setup Interrupt handler<br></div><div>2020-08-14 13:24:22.439169 I Setup Terminated handler<br></div><div>2020-08-14 13:24:22.439187 I Setup Segmentation fault
handler<br></div><div>2020-08-14 13:24:22.439204 I Setup Aborted handler<br></div><div>2020-08-14 13:24:22.439220 I Setup Bus error handler<br></div><div>2020-08-14 13:24:22.439238 I Setup Floating point
exception handler<br></div><div>2020-08-14 13:24:22.439255 I Setup Illegal instruction
handler<br></div><div>2020-08-14 13:24:22.439274 I Setup Real-time signal 0
handler<br></div><div>2020-08-14 13:24:22.439296 I Setup User defined signal
1 handler<br></div><div>2020-08-14 13:24:22.439313 I Setup User defined signal
2 handler<br></div><div>2020-08-14 13:24:22.439329 I Setup Hangup handler<br></div><div>2020-08-14 13:24:22.439600 C mythfrontend version:
fixes/31 [v31.0-54-g445cf1fe6b] <a href="http://www.mythtv.org" target="_blank">www.mythtv.org</a><br></div><div>2020-08-14 13:24:22.439618 C Qt version: compile:
5.11.3, runtime: 5.11.3<br></div><div>2020-08-14 13:24:22.439741 I Raspbian GNU/Linux 10
(buster) (arm)<br></div><div>2020-08-14 13:24:22.439748 N Enabled verbose msgs:
general<br></div><div>2020-08-14 13:24:22.440028 N Setting Log Level to
LOG_INFO<br></div><div>2020-08-14 13:24:22.450737 I Added logging to the
console<br></div><div>2020-08-14 13:24:22.450803 N Using runtime prefix =
/usr<br></div><div>2020-08-14 13:24:22.450814 N Using configuration
directory = /home/pi/.mythtv<br></div><div>2020-08-14 13:24:22.450926 I Assumed character
encoding: en_GB.UTF-8<br></div><div>2020-08-14 13:24:22.451046 N Setting 'libCECEnabled'
being forced to '0'<br></div><div>2020-08-14 13:24:22.451851 I Added logging to
/tmp/mythfrontend.20200814122422.1111.log<br></div><div>2020-08-14 13:24:22.452537 I Loading en_gb translation
for module mythfrontend<br></div><div>2020-08-14 13:24:22.453202 I Empty LocalHostName. This
is typical.<br></div><div>2020-08-14 13:24:22.453226 I Using a profile name of:
'myth-fe5' (Usually the same as this host's name.)<br></div><div>2020-08-14 13:24:22.453447 I Start up testing
connections. DB sql, BE , attempt 0, status dbAwake,
Delay: 2000<br></div><div>2020-08-14 13:24:23.993694 N Setting QT default locale
to en_GB<br></div><div>2020-08-14 13:24:23.993778 I Current locale en_GB<br></div><div>2020-08-14 13:24:23.994040 N Reading locale defaults
from /usr/share/mythtv//locales/en_gb.xml<br></div><div>2020-08-14 13:24:24.018182 I Display: Found screen
'HDMI1'<br></div><div>2020-08-14 13:24:24.018268 I Display: Using screen
'HDMI1' (Make: Goldstar Company Ltd Model: LG TV)<br></div><div>2020-08-14 13:24:24.018343 I Display: Qt screen pixel
ratio: 1.00<br></div><div>2020-08-14 13:24:24.018414 I Display: Geometry:
1920x1080+0+0 Size(Qt): 1600mmx900mm<br></div><div>2020-08-14 13:24:24.020199 I DisplayRPI: Connected to
display 'HDMI1'<br></div><div>2020-08-14 13:24:24.049514 I EDID: Version:1.3
Size:256 Exensions:1<br></div><div>2020-08-14 13:24:24.049559 I EDID: Gamma:2.2 sRGB:1<br></div><div>2020-08-14 13:24:24.049592 I EDID: Display
chromaticity:-<br></div><div>2020-08-14 13:24:24.049620 I EDID: Red: 0.6396,
0.3301<br></div><div>2020-08-14 13:24:24.049646 I EDID: Green: 0.2998,
0.5996<br></div><div>2020-08-14 13:24:24.049671 I EDID: Blue: 0.1504,
0.0596<br></div><div>2020-08-14 13:24:24.049695 I EDID: White: 0.3125,
0.3291<br></div><div>2020-08-14 13:24:24.049724 I EDID: Physical address:
3.0.0.0<br></div><div>2020-08-14 13:24:24.051811 N Display: Desktop video
mode: 1920x1080 60.000Hz<br></div><div>2020-08-14 13:24:24.051838 N Display: Display is using
sRGB colourspace<br></div><div>2020-08-14 13:24:24.174871 E PowerDBus: No UPower
interface. Unable to monitor battery state<br></div><div>2020-08-14 13:24:24.193806 I PowerDBus: Failed to
delay sleep,shutdown: Permission denied<br></div><div>2020-08-14 13:24:24.233796 I Power: On AC power<br></div><div>2020-08-14 13:24:24.233826 I Power: Supported actions:
None<br></div><div>2020-08-14 13:24:24.233875 N Setting 'libCECEnabled'
being forced to '0'<br></div><div>2020-08-14 13:24:24.249316 E Failed listening on TCP
0.0.0.0:6547 - Error 8: The bound address is already in
use<br></div><div>2020-08-14 13:24:24.249378 E MediaRenderer: HttpServer
Create Error<br></div><div>2020-08-14 13:24:24.262920 I Loading en_gb translation
for module mythfrontend<br></div><div>2020-08-14 13:24:24.271808 E LIRC: Failed to connect
to Unix socket '/var/run/lirc/lircd'<br></div><div> eno: No such file or directory
(2)<br></div><div>2020-08-14 13:24:24.271917 I No joystick configuration
found, not enabling joystick control<br></div><div>2020-08-14 13:24:24.271930 I UDPListener: Enabling<br></div><div>2020-08-14 13:24:24.273093 E Failed binding to UDP
0.0.0.0:6948 - Error 8: The bound address is already in
use<br></div><div>failed to export dumb buffer: Permission denied<br></div><div>Failed to create scanout resource<br></div><div>2020-08-14 13:24:24.274859 E Failed binding to UDP
[::]:6948 - Error 8: The bound address is already in use<br></div><div>2020-08-14 13:24:24.329887 I Using Frameless Window<br></div><div>2020-08-14 13:24:24.329897 I Using Full Screen Window<br></div><div>2020-08-14 13:24:24.338308 I Display: Have main widget<br></div><div>2020-08-14 13:24:24.338333 I Display: Have main window<br></div><div>2020-08-14 13:24:24.339034 I Display: Found screen
'HDMI1'<br></div><div>2020-08-14 13:24:24.340508 I UI Screen Resolution:
1920 x 1080<br></div><div>failed to export dumb buffer: Permission denied<br></div><div>Failed to create scanout resource<br></div><div>QOpenGLFramebufferObject: Framebuffer incomplete
attachment.<br></div><div>QOpenGLFramebufferObject: Framebuffer incomplete,
missing attachment.<br></div><div>2020-08-14 13:24:24.433095 E Failed to create
framebuffer object<br></div><div>2020-08-14 13:24:24.433224 I OpenGL: OpenGL
vendor : Broadcom<br></div><div>2020-08-14 13:24:24.433236 I OpenGL: OpenGL
renderer : V3D 4.2<br></div><div>2020-08-14 13:24:24.433247 I OpenGL: OpenGL
version : OpenGL ES 3.1 Mesa 19.3.2<br></div><div>2020-08-14 13:24:24.433264 I OpenGL: Qt
platform : eglfs<br></div><div>2020-08-14 13:24:24.433352 I OpenGL: EGL
display : Yes<br></div><div>2020-08-14 13:24:24.433361 I OpenGL: EGL
images : Yes<br></div><div>2020-08-14 13:24:24.433370 I OpenGL: Qt OpenGL
format : OpenGLES 3.1<br></div><div>2020-08-14 13:24:24.433379 I OpenGL: Qt OpenGL
surface : RGBA: 8880 Depth: 0 Stencil: 0<br></div><div>2020-08-14 13:24:24.433389 I OpenGL: Max texture
size : 4096<br></div><div>2020-08-14 13:24:24.433397 I OpenGL: Max texture
units : 48<br></div><div>2020-08-14 13:24:24.433406 I OpenGL:
Shaders : Yes<br></div><div>2020-08-14 13:24:24.433416 I OpenGL: NPOT
textures : Yes<br></div><div>2020-08-14 13:24:24.433424 I OpenGL:
Multitexturing : Yes<br></div><div>2020-08-14 13:24:24.433433 I OpenGL: Rectangular
textures : No<br></div><div>2020-08-14 13:24:24.433442 I OpenGL: Buffer
mapping : Yes<br></div><div>2020-08-14 13:24:24.433451 I OpenGL: Framebuffer
objects : Yes<br></div><div>2020-08-14 13:24:24.433459 I OpenGL: 16bit
framebuffers : No<br></div><div>2020-08-14 13:24:24.433468 I OpenGL: Unpack
Subimage : Yes<br></div><div>2020-08-14 13:24:24.433477 I OpenGL:
GL_RED/GL_R8 : Yes<br></div><div>failed to export dumb buffer: Permission denied<br></div><div>Failed to create scanout resource<br></div><div>QEGLPlatformContext: eglSwapBuffers failed: 3003<br></div><div>Could not lock GBM surface front buffer!<br></div><div>failed to export dumb buffer: Permission denied<br></div><div>Failed to create scanout resource<br></div><div>QEGLPlatformContext: eglSwapBuffers failed: 3003<br></div><div>Could not lock GBM surface front buffer!<br></div><div>failed to export dumb buffer: Permission denied<br></div><div>Failed to create scanout resource<br></div><div>QEGLPlatformContext: eglSwapBuffers failed: 3003<br></div><div>Could not lock GBM surface front buffer!<br></div><div>2020-08-14 13:24:24.482396 I OpenGL: Initialised
MythRenderOpenGL<br></div><div>2020-08-14 13:24:24.482415 I OpenGL: Using full range
output<br></div><div>2020-08-14 13:24:24.512929 I MythUIHelper: Pruning
cache directory: /home/pi/.mythtv/cache/remotecache<br></div><div>2020-08-14 13:24:24.513104 I MythUIHelper: Kept 0
files, deleted 0 files, stat error on 0 files<br></div><div>2020-08-14 13:24:24.513129 I MythUIHelper: Pruning
cache directory: /home/pi/.mythtv/cache/thumbnails<br></div><div>2020-08-14 13:24:24.513200 I MythUIHelper: Kept 0
files, deleted 0 files, stat error on 0 files<br></div><div>2020-08-14 13:24:24.610063 I
MythCoreContext::ConnectCommandSocket(): Connecting to
backend server: 192.168.1.149:6543 (try 1 of 1)<br></div><div>2020-08-14 13:24:24.612047 I
MythCoreContext::CheckProtoVersion(): Using protocol
version 91 BuzzOff<br></div><div>libpng error: Read Error<br></div><div>libpng error: Read Error<br></div><div>2020-08-14 13:24:24.846886 I CECAdapter: libCEC
support is disabled.<br></div><div>2020-08-14 13:24:24.855576 I Current MythTV Schema
Version (DBSchemaVer): 1361<br></div><div>2020-08-14 13:24:24.861491 I V4L2_M2M:
Supported/available V4L2 decoders:<br></div><div>2020-08-14 13:24:24.861515 I V4L2_M2M: H264<br></div><div>2020-08-14 13:24:24.863465 I MMAL: Supported/available
MMAL decoders:<br></div><div>2020-08-14 13:24:24.863483 I MMAL: H264<br></div><div>Handling Segmentation fault<br></div><div>Segmentation fault<br></div></div></blockquote><div>libpng-tools and libpng16-16 are installed (seemed to be
the closest packages to the libpng error). worked before the
upgrade but broken after.<br></div><div><br></div><div><br></div></div></blockquote><p>I suspect the update installed a series 5.4 kernel (uname -a )<br></p><p>You need to add QT_QPA_EGLFS_ALWAYS_SET_MODE="1" to the command
line i.e.<br></p><p>QT_QPA_EGLFS_ALWAYS_SET_MODE="1" QT_QPA_PLATFORM=eglfs
mythfrontend --logpath=/tmp -O libCECEnabled=0<br></p><p><br></p><p>You may need to reboot the Raspberry Pi before making this
change.<br></p><p><br></p><p>Mike<br></p><div><br></div></div></blockquote></div><div><br></div><div>not sure about the seg fault - i reinstalled that rpi4.<br></div><div>i have a 2nd rpi4 that wasnt segfaulting but also not displaying the FE GUI even though it was running and i could even play recorded to (blink navigation). adding that to the start made the GUI appear. i'll have to double check this one as it worked fine last time i used it. maybe auto-updates are enabled and it got the 5.4 kernel in the last 2-3 weeks.<br></div><div><br></div><div>after rebuilding the segfault rpi4, it was same as the 2nd rpi - gui hidden and i needed to add that option to the cmdline startup.<br></div><div>Since the reinstall of the rpi4, it's being a bit erratic with boot up. not sure if it's a eeprom/firmware update causing it or i have a failing SD card but seems very intermittent boot where it wont even initiate the display.<br></div><div><br></div><div>thanks for that - the additional entry was needed! i'll update the wiki with it at some point.<br></div><div><br></div><div><br></div></div><br></body></html>