Dual monitor Unity workspace switcher bug

[nevergone]

I have a Lenovo T410 laptop (Intel 5700MHD GPU) with dual monitor and Ubuntu 11.10 beta1 with Unity. If I would like switch another workspace, this will be next (see screenshot).

[nevergone (nevergone)]

Bug is exist, Ubuntu 11.10 beta1 (up-to-date) and Intel 5700MHD GPU.

[David Barth (dbarth)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately, we cannot work on this bug because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" http://www.chiark.greenend.org.uk/~sgtatham/bugs.html. We'd be grateful if you would then provide a more complete description of the problem.

We have instructions on debugging some types of problems at http://wiki.ubuntu.com/DebuggingProcedures

At a minimum, we need:
1. the specific steps or actions you took that caused you to encounter the problem,
2. the behavior you expected, and
3. the behavior you actually encountered (in as much detail as possible).
Thanks!

[Omer Akram (om26er)]

confirming from duplicate and probably no steps are required just using the WS switcher can do it. Though I dont have a dual monitor setup to test.

[Luke Scharf (lukescharf)]

Omer Akram and David Barth: I submitted the duplicate bug. I can confirm that no special steps are required to get the behavior shown in my screenshot, or in nevergone's screenshot.

Nevergone's screenshot shows that the bug isn't related to the stacked monitor configuration that I was using. A similarity between our configurations, though, is that the both of our display-configurations feature monitors of mismatched sizes.

The steps as I used are:
1. Plug in external monitor to laptop
2. Go to Display-control app, and arrange the monitors to match my physical setup.
3. Press the workspace picker button.
4. Look at artifacts. Take screenshot.

I'll be happy to perform any additional troubleshooting steps, or test partial fixes. I'm programming-literate, and an experienced Linux/Unix user. This one is fairly easy to reproduce, though, so I'd guess that any Unity/Compiz developer with mismatched monitors should be able to see it.

[nevergone (nevergone)]

Yes, my primary monitor size is 1280x800, and external monitor size is 1440x900.

[Matt Biddle (eightbitalpha)]

I get this bug also. Running: HP ProBook with Mobility Radeon HD 4200, Laptop @ 1366x769, External (VGA) @ 1360x768
I can provide more info if needed.

Thanks.

[Eric Zimmerman (eric-zimtek)]

Bad bug...makes WS worthless. Cannot control workspaces at all from second monitor. Workspace selection on primary monitor is very erratic.

I have same issue - dual monitor, one at 1920x1080, the other at 1920x1200.

[Luke Scharf (lukescharf)]

The new Unity switcher in Oneiric solves this one very nicely. I haven't experienced the bug since this new version of Gnome was introduced into the Oneric 2-3 weeks ago (when it was still in beta). This is the unity variant where that revolves around a dashboard showing the all of the running windows, the "favorites", a way to explore applications, a system-wide search-bar, and a list virtual desktops along the right side. The dashboard can be accessed by pushing the meta key, moving the mouse to the upper left-hand corner, or clicking on the word "Activities".

I'm a big fan of the new GUI. Instead of being an 90%-as-good copy of the Mac OS X Dock, this is something new that is one of the few modern GUIs that seems intuitive for both both novice and experienced users, and works in harmony with all of the traditional X-Windows applications.

In other words, this bug no longer affects me. I reported it earlier in the Oneiric beta. I'm guessing that everyone still seeing this is running Natty?

[Eric Zimmerman (eric-zimtek)]

NO, I am running the release of Oneric, upgraded from 11.04 to 11.10 release on 10/16/2011.

[Luke Scharf (lukescharf)]

Assuming that we're both patching our systems regularly, we should be running the same major releases of the major desktop applications, then.

I wonder why the difference?

[Eric Zimmerman (eric-zimtek)]

Well, I had 11.04 patched to the latest before upgrading yesterday, and 11.10 says "Software Up to Date" now, so I assume I have the latest. My screens are right to left. Running laptop as primary on the right 1920x1080 and Second LCD via hdmi on the left 1920x1200.

I am available and can provide info or feedback at any time. Are there any config or log files that might help diagnose the issue?

[Luke Scharf (lukescharf)]

I'm an idiot. I'd changed to a Gnome desktop from the Ubuntu/Unity desktop. I must have rm'ed my .gmrc or something, but I assumed it was a major upgrade since it was in the thick of the Oneiric beta. I still love the new Gnome GUI shell, but please disregard my above comments on the basis that I didn't know what the h3#l I was talking about.

[Thanos Lefteris (alefteris)]

Here is another screenshot from my multimonitor setup

[Matt Biddle (eightbitalpha)]

I can confirm that this bug is at least partly cause by displays having different geometry. My Laptop screen is at 1366x768 and the External LCD is at 1360x768. If I set both displays to be 1280x720 the problem goes away.

[danizmax (danizmax)]

I confirm this bug as well, this bug is since Natty, but has become more severe in Oneiric, since mouse position does not reflect clicking position any more.

It should be fixed as soon as possible because it affects many people using ubuntu at work.

regards

[Taylor Raack (track16)]

Yes, this bug happens for me too. If I have a second monitor plugged in and attempt to use the workspace switcher, I get all of the goofy workspace imagery onscreen which is impossible to use.

[Eddie Dunn (eddie-dunn)]

Bug is still present in the current 12.04 Alpha.

[Eddie Dunn (eddie-dunn)]

Bug is fixed in the current 12.04 version.

[Eric Zimmerman (eric-zimtek)]

Second confirmation this is now resolved with latest release.

Also, can confirm that user interactions now work as well on the secondary monitor, where before you could only use the primary monitor for selecting workspaces, and moving windows.

Thanks for fixing it!