Hello,

When using the ppa:x2go/stable repository, something seemed strange when I ran the update manager in Ubuntu 14.04 and Ubuntu 16.04. I received a message about a partial upgrade I've never seen since using Ubuntu. I've attached the message. After running this partial upgrade, I started experiencing the flickering problems. Removed x2goserver entirely, and did a fresh install of the most update to date version. Still experiencing the flickering problems.

I  uninstalled everything from x2goserver on our system. Also uninstalled any lingering package versions that might conflict with trying to install from the Saimaa repository.

After cleaning, I installed x2goserver from the Saimaa repository.

I no longer experience the flickering when maximizing/minimizing or moving the window from side-to side. Everything is working fine like it was prior to the most recent update from the ppa:x2go/stable repository. I think I'm going to stick with the Saimaa repository for now until the bugs are fixed from the ppa:x2go/stable  repository.  

Also going to stick with x2goclient 4.1.0.0 where there is no issue with clicking the session panel. I can click where I'm accustomed to clicking again.

Why are there 2 repositories for x2go and which one should we use for the long-term?

Any help would be appreciated.

h.

From: x2go-user <x2go-user-bounces@lists.x2go.org> on behalf of h i <qpile117@outlook.com>
Sent: Friday, March 9, 2018 4:23 PM
To: x2go-user@lists.x2go.org
Subject: Re: [X2Go-User] Problems after upgrading to recent x2go-server and x2go client releases
 

Mihai,

Thanks for your response. Please see my responses below:

* On 03/07/2018 07:34 PM, h i wrote:
> >I've been experiencing problems with opening applications and resizing my x2go
> >client window after installing the newest version x2go-server.
> 
> 
> >The issues occurs on Ubuntu 14.04 and 16.04.
> 
> 
> >What happens now is that every time I maximize my x2go-client window, the images
> >on screen rapidly flicker and won't stop until I minimize the screen.

>>The flickering is a known problem, but as far as we can tell only appears on
>>Windows (and even then not with all X servers, but prominently with VcXsrv, that
>>we bundle). It's tracked here: https://github.com/ArcticaProject/nx-libs/issues/600
> Also, each time I move the window, a quick flicker occurs across the screen.
>Probably related to the move being something alike to a resize and thus also
>triggering the new xinerama code.


> >This never occurred before this new release.

>There is no known workaround currently, though it might be possible to just
>ignore multiple resize events in nxagent if the requested size doesn't change.
>We'll have to see how that goes.




I think I might have to roll-back to the previous x2goserver version. At least with our setup, we never had a flicker issue until this most recent  update.



> >On the client side, I upgraded to the 4.1.1.1 from 4.1.0.0 and experienced some
> >issues. I have to click on the outside/top-right edge of the session panel for
> >the login session window to appear. Any thing closer to the middle, and it won't
> >respond.

>This is not an issue, but an often requested new feature. I've changed the
>click-sensitive area to an upside-down L shape around the session settings that
>can be modified within the tile. Actually like this, where "s" denotes a
>click-sensitive area:

 ___________________________
|sssssssssssssssssssssssssss|
|sssssssssssssssssssssssssss|
|sss                        |
|sss                        |
|sss                        |
|sss                        |
 ---------------------------

>The problem so far has been that users can normally edit some exposed settings
>within a tile, but doing so proved to be very difficult since an incorrect click
>triggered a session startup instead of changing a setting, which was happening
>quite often.

>The sensitive area isn't small and figuring that out shouldn't take long
>usually, so I guess you've just been unlucky to always click on the right hand
>side which is typically insensitive but in the upper part.




Interesting. Yeah, I never had an issue with the sensitive area. Understandable that others might have an issue.




> >Once logged into a session, the flickering resulting
> >from moving/maximizing the window is much worse.
> >
>> Fortunately, I was able to revert back to x2go-client 4.1.0.0.

>Huh, the flickering should be always the same, whether a session has been
>started with 4.1.1.1 or 4.1.0.0. Though, potentially there could be a
>difference: versions prior to 4.1.1.1 won't be able to utilize the Xinerama
>feature in X2Go Server 4.1.0.0, so when connecting with older client versions
>Xinerama will always be disabled in nxagent.


>> However,is there a way to revert back to this previous version/configuration
>> of x2goserver. Right now, it is has been a lot of flickering while to trying to
> >do routine tasks with the current release.

>That's what the Saimaa release is for. You'll have to switch repositories and
>make sure to pin the release.

>After doing so, you should be following issue reports that affect you and
>eventually switch back to the stable server release, since Saimaa is not getting
>any bug fixes or new features, apart from security-related issues.



What is Saimaa release, and why are there two separate releases for x2go now?  

Is the saimaa release from here:
https://launchpad.net/~x2go/+archive/ubuntu/saimaa

Thank you for your help.


h.