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.
