[Pkg-tigervnc-devel] Bug#855350: Bug#855350: tigervnc-xorg-extension: Loading the tigervnc the extension makes the x server practically unusable

[Ola Lundqvist]

Thank you!

Looks like we have a workaround that at least works for some. It would be
good if others can confirm or deny that this is a viable workaround.

/ Ola

Sent from a phone

Den 24 apr 2017 03:07 skrev "John Tyner" <jtyner at gmail.com>:

> Yes and yes.
>
> When X is sluggish, it is sluggish from the "get-go", as soon as I see my
> log in prompt.
>
> I've attached my working config and the log associated with it. I've also
> attached the log associated with the sluggish behavior. In the latter case,
> I added the file 99-vnc.conf to the /usr/share/X11/xorg.conf.d directory
> with only the following lines:
>
> Section "Module"
>         Load "vnc"
> EndSection
>
> John
>
> On Sun, Apr 23, 2017 at 1:07 PM, Ola Lundqvist <opal at debian.org> wrote:
>
>> Hi
>>
>> Do I understand correctly that you could connect without the sluggishness?
>>
>> Do you have a working sample config that you can share?
>>
>> / Ola
>>
>> Sent from a phone
>>
>> Den 23 apr 2017 04:46 skrev "John Tyner" <jtyner at gmail.com>:
>>
>>> I thought I might be able to shed a little more light on this:
>>>
>>> I didn't realize that one could create xorg.conf fragments in the
>>> xorg.conf.d directory, so I started by running 'Xorg -configure' to
>>> generate a configuration file. I then modified that to load the vnc module.
>>> This ran fine--without the X server sluggishness--and I was eventually able
>>> to get the server to accept connections using Martin's advice in Message
>>> #10.
>>>
>>> Then I discovered the xorg.conf.d fragment directory. I removed my
>>> xorg.conf and loaded the vnc module from a configuration fragment in
>>> /usr/share/X11/xorg.conf.d. I immediately began experiencing the server
>>> sluggishness, and my Xorg.0.log is spitting out a slew of messages:
>>>
>>> [<timestamp>]: (EE) modeset(0): failed to set mode: Permission denied
>>>
>>> every 5 seconds.
>>>
>>> I hope this information is of value to someone.
>>>
>>> John
>>>
>>> On Tue, 28 Feb 2017 23:16:10 +0100 Ola Lundqvist wrote:
>>> > tags 855350 + help
>>> > thanks
>>> >
>>> > Hi Kertesz and Martin
>>> >
>>> > Thank you for the report and information regarding options.
>>> >
>>> > The performance issue is definitely a problem. I do not have a
>>> solution at
>>> > the moment.
>>> >
>>> > I have a little problem testing this myself at the moment as only have
>>> sid
>>> > in a chroot and X will not really start for me there.
>>> >
>>> > So if anyone have the possibility to look into this and provide a patch
>>> > that would be excellent!
>>> >
>>> > Best regards
>>> >
>>> > // Ola
>>> >
>>> >
>>> >
>>> > On 18 February 2017 at 08:12, Martin Dorey wrote:
>>> >
>>> > > > i could not find a way to actually pass options
>>> > >
>>> > > I eventually managed to get a default configured Stretch box to
>>> accept a
>>> > > remote connection using:
>>> > >
>>> > > mad at shuttle:~$ cat /usr/share/X11/xorg.conf.d/75-vnc-mad.conf
>>> > > Section "Device"
>>> > > Identifier "Device"
>>> > > EndSection
>>> > > Section "Screen"
>>> > > Identifier "Screen"
>>> > > Device "Device"
>>> > > Option "PasswordFile" "/u2/home/mad/.vnc/passwd"
>>> > > EndSection
>>> > > mad at shuttle:~$
>>> > >
>>> > > It seems, from the source, that the PasswordFile Option is only
>>> looked for
>>> > > in the Screen section and the Screen section has to have an
>>> Identifier and
>>> > > a Device, which has to refer to a Device section, which needs an
>>> > > Identifier. Argh, but, OK, whatever. Then I have other problems, both
>>> > > keeping the connection up and with redraw, but I fear that
>>> elaborating them
>>> > > here would be a hijack of the OP's bug, the main symptom of which - a
>>> > > horrible-sounding performance issue - I don't see with Gnome 3.
>>> > >
>>> > >
>>> > > _______________________________________________
>>> > > Pkg-tigervnc-devel mailing list
>>> > > Pkg-tigervnc-devel at lists.alioth.debian.org
>>> > > http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-
>>> tigervnc-devel
>>> > >
>>> >
>>> >
>>> >
>>> > --
>>> > --------------------- Ola Lundqvist ---------------------------
>>> > / opal at debian.org Folkebogatan 26 \
>>>
>>>
>
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