When starting Evolution /usr/lib/gdm3/gdm-x-session[2309]: (II) modeset information is printed to syslog

[Chris Pollock]

On Mon, 2018-09-24 at 19:46 -0500, Chris Pollock wrote:
> On Thu, 2018-09-06 at 10:10 -0500, Chris wrote:
> > On Thu, 2018-09-06 at 16:00 +0200, Michel Dänzer wrote:
> > > On 2018-09-06 1:53 p.m., Chris wrote:
> > > > On Thu, 2018-09-06 at 12:21 +0200, Michel Dänzer wrote:
> > > > > On 2018-09-05 9:16 p.m., Adam Jackson wrote:
> > > > > > On Sat, 2018-09-01 at 10:24 -0500, Chris wrote:
> > > > > > 
> > > > > > > When starting Evolution this is output to syslog and
> > > > > > > periodically
> > > > > > > after it's running:
> > > > > > > 
> > > > > > > https://pastebin.com/zndBukUG
> > > > > > 
> > > > > > Evolution, or something it provokes, is asking the server
> > > > > > for
> > > > > > the
> > > > > > list
> > > > > > of available video modes. It's doing so with
> > > > > > XRRGetScreenResources(),
> > > > > > apparently, which prompts the X server to go re-check every
> > > > > > available
> > > > > > output to see if anything has changed. This is silly, it
> > > > > > should
> > > > > > be
> > > > > > using XRRGetScreenResourcesCurrent() and relying on hotplug
> > > > > > events
> > > > > > to
> > > > > > trigger re-polling. Now, maybe the X server shouldn't print
> > > > > > the
> > > > > > modes
> > > > > > in the log when that happens, [...]
> > > > > 
> > > > > FWIW, it probably shouldn't indeed, at least not at the
> > > > > default
> > > > > log
> > > > > verbosity.
> > > > > 
> > > > 
> > > > AFAICT my rsyslog.conf it's the default. I don't know if
> > > > uncommenting
> > > > these lines would help or not:
> > > > 
> > > > ### Debugging ###
> > > > # $DebugFile /var/log/rsyslog-debug
> > > > # $DebugLevel 2
> > > > 
> > > > # syslog.* /var/log/syslog.debug;RSYSLOG_DebugFormat
> > > > # $DebugFile /var/log/syslog.debug
> > > > # $DebugLevel 2
> > > 
> > > Yeah, sorry, different meaning of "should" — the code definitely
> > > always
> > > has printed these by default, it just arguably shouldn't.
> > > 
> > > Anyway, Adam is right that the client shouldn't use this
> > > functionality
> > > in the first place.
> > > 
> > 
> > Besides the bug report submitted at Ubuntu Launchpad that I
> > mentioned
> > in my original post I've also submitted them as noted below.
> > 
> > https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1788739
> > 
> > https://bugs.freedesktop.org/show_bug.cgi?id=107841
> > 
> > https://gitlab.gnome.org/GNOME/gdm/issues/418
> > 
> > The reasoning for this is I'm just not exactly who's purview this
> > would
> > come under.
> > 
> 
> I thought I'd add that this also happens when starting and stopping
> XFE
> 
> xfe:
>   Installed: 1.42-1
>   Candidate: 1.42-1
> 
Thought I'd post an update to this since I've tried several different
things to try and stop the output to syslog. Firstly I recognize that
this is on information (II) however I don't believe it should be
written to my syslog ever time I open or close certain applications.
Per suggestions on the Ubuntu-Users list I first installed a new VGA
cable, no change. Since my Dell Optiplex 780 has a DisplayPort output
connector and my ACER monitor has a DVI input port. I bought and
installed a DisplayPort->DVI cable. Here is the
~/.local/share/xorg/Xorg.1.log as written after I installed the cable
and booted the system last Friday and output to it through today 
https://pastebin.com/FjfYcUS1
I don't know if there's any information there that would give a clue as
to what's the cause or not. I believe the major issue in
troubleshooting this is that it will not happen each time I start or
stop Evo, XFE, Firefox or others that seems to cause it.

-- 
Chris
KeyID 0xE372A7DA98E6705C
31.11972; -97.90167 (Elev. 1092 ft)
15:27:03 up 3 days, 52 min, 1 user, load average: 0.99, 0.58, 0.65
Description:	Ubuntu 18.04.1 LTS, kernel 4.15.0-39-generic
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