[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 This bug is closed and so is bug 160264. Please open a new bug for Ubuntu 20.04. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/112518 Title: Switch User freezes at blank screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/112518/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 I have this exact bugg on Kubuntu 20.4 LTS. It's not the same as #160264 as (like other people here) I get a black screen, not a white one. No response from any Fn+Fx keys, only fix is a hard boot. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/112518 Title: Switch User freezes at blank screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/112518/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 still happening occasionally to me with 15.04 This does not appear to be the same as #160264. The steps to reproduce are different. The resolution is different. There is no white screen. Switching never gets as far as logging in. Never is there a point when the white screen (which doesn't exist) goes away. Hard reset is only solution. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/112518 Title: Switch User freezes at blank screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/112518/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 I have the same problem as this bug description (not the same as bug 160264, which I think is something else). linux Mint 12 ATI catalyst12.2 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/112518 Title: Switch User freezes at blank screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/112518/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: xorg-server (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/112518 Title: Switch User freezes at blank screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/112518/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 I don't know if this is actually a duplicate of bug 160264 - that one reports a white screen; this one (and what I'm experiencing with Lucid/10.4, ATI, and Compiz) produces a black screen. Is it possible 10.4 has a regression? -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 The black screen problem is still alive! (Core i3 530 with integrated graphics) Reliable workaround: 1. For every user on the machine repeat step 2, 3 and 4 2. go to System, Settings, Keyboard Shortcuts 3. add a shortcut name: e.g. Fix black screen command: xgamma -gamma 1.0 4. assign a combination: e.g. Crtl+Esc Whenever you expirience the problem, do the following: - type in the password of the user you want to switch to - apply the keyboard shortcut (in my case Crtl+Esc) That already saved me at least a hunderd times. Good luck! -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 The problem reported in the first post is already there on Ubuntu Netbook Lucid Linx installed on ASUS Eee PC 1000HG. Switch user a second time imply a black screen without any possible key input. Must reboot with long time press on power off button. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
*** This bug is a duplicate of bug 160264 *** https://bugs.launchpad.net/bugs/160264 ** This bug has been marked a duplicate of bug 160264 [nvidia] compiz displays white screen when locked -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Just to clarify this: Please don't be confused by my previous comments, the problem I mentioned there is clearly not the same as the one initially reported by Nick B. The problem I describe above only occurs when I run the RT kernel. (2.6.27-3-rt #1 PREEMPT RT) No problems when using the generic one. Also the symptoms are different from what is described by other comments here. I will file a separate report for it, once I find some time. Sorry for the mess. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I discovered the same problem. After the steps, described at the first post, the screen goes black with the only mouse cursor moving. The system seems running OK, as the cursor may change its shape, when presumably hovering text fields, but it is impossible to get out of that state. The system is Ubuntu 8.10 Intrepid, kernel: Linux ubuntu-desktop 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008 i686 GNU/Linux; video card NVidia GeForce4 MX440 AGP 4x, 64MB VRAM, driver 96.43.09-0ubuntu1, Compiz-Fusion is running. Monitor is Philips 220WS and screen resolution is 1680 * 1050. Extract from /etc/X11/xorg.conf Section Monitor Identifier Monitor0 VendorName Unknown ModelName Philips 220WS HorizSync 30.0 - 93.0 VertRefresh 56.0 - 76.0 Option DPMS EndSection Section Device Identifier Device0 Driver nvidia VendorName NVIDIA Corporation BoardName GeForce4 MX 440 EndSection Section Screen Identifier Screen0 Device Device0 MonitorMonitor0 DefaultDepth24 Option AddARGBGLXVisuals True Option TwinView 0 Option TwinViewXineramaInfoOrder CRT-0 Option metamodes 1680x1050_60 +0+0; 1680x1050 +0+0; 1280x1024 +0+0; 1024x768 +0+0; 800x600 +0+0; 640x480 +0+0 SubSection Display Depth 24 EndSubSection EndSection -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
After filling the above comment found that disabling Sync to VBlank might solve the problem. After un-ticking it in CCSM the system refused to switch the user, with the error message. So I went to NVidia X Server Settings and un-ticked same Sync to VBlank here. This helped. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Maybe this is really a kernel bug? I am not sure whether to open a new report for this. Anyway, here are some more observations: - The system can still be accessed via ssh, so it isn't really locked up, only screen and input devices do not work. - it seems that whenever the described bug occurs, there is some stack trace written to /var/log/kern.log: Nov 2 14:02:55 slaine kernel: [ 3052.385064] BUG: scheduling with irqs disabled: mysqld/0x0001/4794 Nov 2 14:02:55 slaine kernel: [ 3052.385083] caller is rt_spin_lock_slowlock+0x92/0x250 Nov 2 14:02:55 slaine kernel: [ 3052.385091] Pid: 4794, comm: mysqld Tainted: P 2.6.27-3-rt #1 Nov 2 14:02:55 slaine kernel: [ 3052.385097] [c03512f6] ? printk+0x18/0x1a Nov 2 14:02:55 slaine kernel: [ 3052.385105] [c0351cb0] schedule+0xf0/0x100 Nov 2 14:02:55 slaine kernel: [ 3052.385112] [c0353682] rt_spin_lock_slowlock+0x92/0x250 Nov 2 14:02:55 slaine kernel: [ 3052.385120] [c0353e1a] __rt_spin_lock+0x4a/0x50 (... A full trace is attached as file trace.log.gz ...) It is not always mysqld, for instance I also saw a similar trace for kaffeine, which also was created exactly at the moment the system (the x session, whatever) locked up. There are other traces written to the log, but they do not seem to be related, at least there where no *observable* problems. I am running an up-to-date ubuntu 8.10 installation. uname -av says Linux slaine 2.6.27-3-rt #1 PREEMPT RT Mon Oct 27 03:05:19 UTC 2008 i686 GNU/Linux The processor is actually a x86_64, but my I am running it in 32bit mode. Version of the NVidia driver is 173.14.12 The graphics adapter is a GeForce FX 5700LE I will try to switch to the generic kernel image and see if the problem is still there. Maybe it is just related to the PREEMPT/RT-stuff. ** Attachment added: trace.log.gz http://launchpadlibrarian.net/19231401/trace.log.gz -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
so far I was not able to reproduce the problem when running the generic kernel image. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
AFAICT, Intrepid is indeed affected. I just upgraded. Never had any problems with 8.04, but since upgrading to 8.10 I see the same behaviour (switching between two X sessions and the machine locks up) There are two small differences, so I am not 100% sure if this is the same bug: 1) it does not happen every time. 2) sometimes the machine freezes even before switching, i.e. I try to switch from session A to session B and the box freezes while the desktop of A is still visible. Let me know if there is any information I can provide to help you fix the problem. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Seems not to affect Intrepid beta. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
This is still happening with the last kernel on Hardy, But, as result of some test, I've disables Compiz AND gnome-screensaver (I put a black screen, just something without OpenGPL) and the issue disappeared... Maybe the people who disable compiz have a fancy screensaver and because of that they're getting the blank screen... Can someone try this too? -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Dudes, I'm with you back again, sorry it took me some time, but I want to report that this issue *WAS NOT FIXED*, for some reason (proabably some configuration on my display) the Switch user screen worked, but after some time the problem came back again... WORK-AROUND: 2 actually: 1. When the screen is blank (dark with few vertical and horizontal dotted lines for my case) hit the escape button until you listen the Ubuntu error sound, then blindly enter the user and password. 2. Don;t user Switch user, LOGOUT current User and then LOGIN with new one. Let's see if Intrepid (Ubuntu 8.10) fixes the issue.. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I too got this bug and haven't found a solution yet. Dist: Kubuntu 8.04.1 Fully upgraded Graphics card: PowerColor (ATI) HD3870 SCS3 Tested drivers: fglrx 8.3 through 8.9 Symptoms: When switching user the screen goes black and the system is totally unresponsive, including the keyboard. Not even caps-lock trigges the caps-lock light. The only thing that works is the reset button and to hold the powerbutton until it shuts down. Shutdown or restart works without problem (I have fixed the problem with atieventsd, see bug 118605). If i use the vesa or radeonhd drivers everything is ok. But then I got no 3D acceleration, which I think would be nice... This bug is really annoying to me, as we are switching users a lot on this computer. It started when I bought this card. I got a ATI X600 before, and that didn't suffer from this bug at all. Anything else I could provide to help solving this bug, or at least get it triaged? -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
This bug still appears on my system, using Ubuntu Hardy Heron in combination with a ATI x1250 onboard GPU and the ATI restricted driver. (Offtopic: I could not test the ATI/Envyng solution, as there I am hurt by some kind of 'blank screen bug' in combination with compiz...) The bug does not occur if I use the OpenSource ATI driver! Would be interesting to know if those, who think that the bug has been fixed, are using some NVIDIA or INTEL cards... Again... AMD/ATI users seem to be at end of the of the queue (as always). Can't believe that the ATI drivers are still crap after all these years Shame on you AMD/ATI guys!!! Sorry... but I am getting angry about these crappy drivers!!! -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
With most recent updates (as of August 7, 2008) the problem seems to be fixed for me... -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Seems fixed to me Ubuntu 64bit 8.04.1, kernel 2.6.24-19 Gnome 2.22.2 Must have been fixed through Hardy updates -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
My system specs: * Ubuntu 8.04.1 Gnome with Compiz Fusion enabled * Installed NVIDIA packages: - nvidia-glx-new 169.12+2.6.24.13-19.45 - nvidia-kernel-common 20051028+1ubuntu8 When I switch user on Gnome and then subsequently logout from it to go back to the original user desktop, I get the white screen, which appears to be related to the gnome-screensaver. My solution: 1. Press CTRL-ALT-F1 to switch to virtual console. 2. Login with the same user account as the session with white screen. 3. Run command: pkill -9 gnome-screensaver 4. Press CTRL-ALT-F7 to switch back to original session... the white screen should be gone. Hope this provides more info about the issue. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Hello there, just wanted say that you are not alone with this problem: My system relevant info is: -HP Pavilion Laptop -Intel Pentium 4 CPU 3.4 Ghz w/ NVIDIA chip -Resolution 1680x1050, 50Hz -Have upgraded to Heron from Gutsy The issue definitely looks like is an incompatible screen resolution whenever we try to switch the user, so there has to be somewhere in this mechanism where it has to take the default user resolution instead of defaulting to one that is not compatible. Happy to help debugging, just let me know what I need to do (send xorg logs perhaps?) Cheers!! -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
** Changed in: linux-restricted-modules-2.6.20 (Ubuntu) Status: Confirmed = New -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Seems fixed to me in GDM 2.20.6-ubuntu2. (hardy-updates) -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
** Changed in: gdm (Ubuntu) Status: Invalid = New -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
** Changed in: linux-restricted-modules-2.6.20 (Ubuntu) Status: New = Invalid ** Changed in: compiz (Ubuntu) Status: Invalid = Confirmed -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
** Changed in: linux-restricted-modules-2.6.20 (Ubuntu) Status: Invalid = Confirmed ** Changed in: compiz (Ubuntu) Status: Confirmed = Invalid ** Changed in: gdm (Ubuntu) Status: New = Invalid -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
@Travis How do you work around the white screen in compiz? I had the lock-up problem in Gutsy which I worked around in compiz with the SyncToVBlank setting (see my posts above), but I've started having the white screen since installing Hardy. Cheers, Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Can confirm the same as Nick B. If I type in password blindly at white screen then hit enter, it works. Using Hardy on an AMD64x2 with ta daaa - a nvidia card (8600gt). -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
White screen is a different problem that, while a bug in the nvidia driver, can be worked around in compiz. We already have a bug open for that one. This bug is about an actual lockup. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I've found the same problem on Hardy. So I don't think it is kernel related at all. If I disable compiz I get the correct password request dialog. With compiz enabled I get a white screen. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
On Sat, Apr 26, 2008 at 3:46 AM, HDave [EMAIL PROTECTED] wrote: Can confirm the white screen nvidia/compiz version of this bug on the released version of Hardy. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. ** Attachment added: unnamed http://launchpadlibrarian.net/13988230/unnamed -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Maybe this helps to troubleshoot: Since the bug report I tried Suse and other Linux packages. Only the PCLinuxOS http://www.pclinuxos.com/ works 100% perfect with this laptop! On Mon, Apr 28, 2008 at 5:45 PM, Detlef Schaal [EMAIL PROTECTED] wrote: On Sat, Apr 26, 2008 at 3:46 AM, HDave [EMAIL PROTECTED] wrote: Can confirm the white screen nvidia/compiz version of this bug on the released version of Hardy. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. ** Attachment added: unnamed http://launchpadlibrarian.net/13988336/unnamed -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Can confirm the white screen nvidia/compiz version of this bug on the released version of Hardy. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Yes I get a white screen here to now. However I can enter my password blindly and hit Enter and I'm back at the desktop. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Confirmed on Hardy RC -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have frozen blac/nk screen if i.. a) logout b) switch user c) shutdown Only reset button works after it. System: ati 2400, Kubuntu Gutsy, fglrx 8.2, no compiz or others. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I wish some effort were put into fixing this bug, but if that isn't the case, please at least read the whole post before answering and deciding that it isn't an issue. This could be a nvidia bug, it most definitely is not a compiz bug. Read the first post. Nothing about a white screen, it was a black screen that was frozen. Some posts down further explain that it occurs on Kubuntu with no compiz even installed. It has to be a bug that is related to xorg, which could be nvidia or not. Please don't disregard the post, but rather change what it applies to. Mike -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Actually nvidia is the issue for the white screen, compiz just exposes the bug. ** Changed in: compiz (Ubuntu) Status: New = Invalid -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Travis Watkins wrote: Actually nvidia is the issue for the white screen, compiz just exposes the bug. ** Changed in: compiz (Ubuntu) Status: New = Invalid I thought launchpad was OK to track upstream bugs? Can't we leave the bug open? Sam -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
nvidia issue - linux-restricted-modules. Try hardy, which has a newer driver for nvidia. ** Changed in: linux-restricted-modules-2.6.20 (Ubuntu) Sourcepackagename: xorg-server = linux-restricted-modules-2.6.20 -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I can comfirm the white screen issue here on my Dell XPS M1210 laptop. I have an nVidia geforce go 7400 GPU and I have compiz running. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Compiz is the issue for the white screen. The other issue is separate. ** Also affects: compiz (Ubuntu) Importance: Undecided Status: New -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have a similar problem, but a different outcome. The first time I press the Switch User, Logout, Shutdown etc icon, my PC freezes for a good 2 or 3 minutes - long enough to make me walk away from the machine and come back later. But then the window has opened to give me the options. I lock screen. Come back later and carry on working. Subsequent presses of the Switch User, Logout, Shutdown etc icon seem ok. Ubuntu 7.10 - Nvidia GeForce 6600GT using Nvidia Graphics - note: I had the same problem on the supplied graphics driver and I have tried both 64bit and 32bit distros. The pc is an AMD 64bit 3.8GHz Athlon. Thoughts? Or is my issue covered elsewhere? if it is, apologies, but this was the closest I could find... Nick -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
@NikTheGeek I've opened a new bug report for your issue, as it is identical to my own. It seems to be unique from other user switcher related bugs. https://bugs.launchpad.net/ubuntu/+bug/178184 -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have a similar issue and have noticed two gdm processes running. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Thanks, I tried to change compiz. As I said earlier I am new to Ubuntu. I just could not find, even with the compiz FAQ help, the file or settings to modify. Then I tried the worst: I disabled the graphical login manager hoping to get around the problem. I get my login and PW prompt and simply I do not know how to proceed from the $ prompt or how to get back to the previous! Detlef On Nov 18, 2007 6:44 PM, iblackburn [EMAIL PROTECTED] wrote: The invisible login prompt is a similar but different bug. I've come across both. The initial bug froze the computer completely and required a hard reboot. I've not experienced this problem since I adjusted the SyncToVblank setting in compiz. I do occasionally get the invisible login prompt and am able to log in and continue as usual. Hope this helps. Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Thanks, I tried this. It was disabled. By the way it is not possible to enable this feature with my hardware. Then I tried the worst: I disabled the graphical login manager hoping to get around the problem. I get my login and PW prompt and simply I do not know how to proceed from the $ prompt or how to get back to the previous! Detlef On Dec 2, 2007 7:11 PM, Detlef Schaal [EMAIL PROTECTED] wrote: Thanks, I tried to change compiz. As I said earlier I am new to Ubuntu. I just could not find, even with the compiz FAQ help, the file or settings to modify. Then I tried the worst: I disabled the graphical login manager hoping to get around the problem. I get my login and PW prompt and simply I do not know how to proceed from the $ prompt or how to get back to the previous! Detlef On Nov 18, 2007 6:44 PM, iblackburn [EMAIL PROTECTED] wrote: The invisible login prompt is a similar but different bug. I've come across both. The initial bug froze the computer completely and required a hard reboot. I've not experienced this problem since I adjusted the SyncToVblank setting in compiz. I do occasionally get the invisible login prompt and am able to log in and continue as usual. Hope this helps. Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Once you're at the $ prompt doing: sudo /etc/init.d/gdm restart (or kdm if you're using kubuntu) should get you your graphical login window again. Cheers, Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Excellent, I works just perfect. Do you remember how I activate the graphical login interface once forever? I am lost in the add/remove applications window. Thanks, Detlef On Dec 2, 2007 7:25 PM, iblackburn [EMAIL PROTECTED] wrote: Once you're at the $ prompt doing: sudo /etc/init.d/gdm restart (or kdm if you're using kubuntu) should get you your graphical login window again. Cheers, Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
On Dec 2, 2007 9:03 PM, Detlef Schaal [EMAIL PROTECTED] wrote: Excellent, I worked just perfect. I enabled the startup manager again (is this th erigt one?). Unfortunately I do not know exactly which settings to choose. Concerning the blanc screen: I am surprised not to see HDD activity even when the screen blancs while the computer is supposed to shut down. By the way the computer remains powered. Does it simply hangs?. Thanks, Detlef On Dec 2, 2007 7:25 PM, iblackburn [EMAIL PROTECTED] wrote: Once you're at the $ prompt doing: sudo /etc/init.d/gdm restart (or kdm if you're using kubuntu) should get you your graphical login window again. Cheers, Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
One of the proposed solutions: disabling desktop effects worked for me. No more white screen when switching users. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Hello, thanks. I'll try this once back home in 10 days. I was expecting the prompt but have never seen this screen before. I'll try Detlef On Nov 18, 2007 6:06 AM, Dennis Moore [EMAIL PROTECTED] wrote: Happens to me also, Gutsy 7.10 with nvidia 8800 GTS. Here's my workaround: When I've got the blank screen, I move my cursor to the middle of the screen where it changes from an arrow to an I-beam. Click once, enter your user name and hit enter. Click it again, enter your password, and hit enter. Gets me right back in every time. The text box is there, you just can't see it (at least in my case). -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I can confirm that the prompt is there but invisible. Seems like we may have a case of an invisible login prompt. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
I told you something wrong. In the case it blanks I loose the cursor. No chance to find the prompt. On Nov 18, 2007 6:06 AM, Dennis Moore [EMAIL PROTECTED] wrote: Happens to me also, Gutsy 7.10 with nvidia 8800 GTS. Here's my workaround: When I've got the blank screen, I move my cursor to the middle of the screen where it changes from an arrow to an I-beam. Click once, enter your user name and hit enter. Click it again, enter your password, and hit enter. Gets me right back in every time. The text box is there, you just can't see it (at least in my case). -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
The invisible login prompt is a similar but different bug. I've come across both. The initial bug froze the computer completely and required a hard reboot. I've not experienced this problem since I adjusted the SyncToVblank setting in compiz. I do occasionally get the invisible login prompt and am able to log in and continue as usual. Hope this helps. Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Happens to me also, Gutsy 7.10 with nvidia 8800 GTS. Here's my workaround: When I've got the blank screen, I move my cursor to the middle of the screen where it changes from an arrow to an I-beam. Click once, enter your user name and hit enter. Click it again, enter your password, and hit enter. Gets me right back in every time. The text box is there, you just can't see it (at least in my case). -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have the same: IBM T21 version 7.10. Each time I select stand-by, log off, hibernate the screen goes black and that's it. I have to switch the computer of and on again. I am quite new to Ubuntu. Perhaps this might help for troubleshooting: Before I used Ubuntu I used the Knoppix live CD. Screen went blank when system booted. Workaround was to select fb 1024*768 I then installed Knoppix on the HDD, system started and shut down as per design -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have this same bug that only occurs when a user has the 3D effects turned on. I just switched to an nVidia FX5200 PCI video card connected to an LCD via DVI. I can, however, press CNTRL+ALT+BACKSPACE to get back to the user that I just switched from ok. This is on a 3 year old CyberPower PC (aka custom built by a less known manufacturer). -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have this same bug that only occurs when a user has the 3D effects turned on. I just switched to an nVidia FX5200 PCI video card connected to an LCD via DVI. I can, however, press CNTRL+ALT+BACKSPACE to get back to the user that I just switched from ok. This is on a 3 year old CyberPower PC (aka custom built by a less known manufacturer). This is happening with Gutsy final release. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have the same issue (switch user going to a black screen). It happened on 7.04 with effects turned off and now on 7.10 with and without effects off. It happens when I try to use the new switch user applet as well as the regular System - Quit option. Ctrl+alt+fx does nothing. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
fixed on 7.10 for me (lenovo C100) -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I have the same problem on Gutsy (final). I have dual screen (twinview, not xinerama). As soon as I switch back from another user, the screens go blank (light gray). I can usually still switch back to the previous user successfully, or I can switch to a console, or I can use CTRL + ALT + Backspace to get me back to GDM. I'm using an nvidia Geforce 7600 GS with both screens connected via DVI. I'm using Metacity. Oddly, the left edge of the right screen looks like it has a shadow cast, so maybe some sort of effect is still occurring. However, rotating the cube doesn't have any effect, unlike a comment made above. Killing compiz.real from a console fixes the problem. Applying SyncToVBlank=1 has no effect, unlike a comment above. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Ah, sorry to spam, but I was too quick. It seems that either the bug isn't as frequent on kubuntu side, or the last update broke things with kubuntu as well. I get this exact same behavior on kubuntu without gnome installed at all. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I just switched to kubuntu gutsy rc1 and this just went away. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Same problem with Gutsy and intel 965 motherboard w/ integrated graphics. Have both gnome and kde installed on an originally ubuntu system. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
When I switch from one user to another I get the black screen. Logging in remotely I see that what I presume is a new gdm process consumes almost all CPU: root 5732 99.6 0.5 15312 6160 tty9 RLs+ 15:33 9:40 /usr/bin/X :20 -br -audit 0 -auth /var/lib/gdm/:20.Xauth -nolisten tcp vt9 It is no problem otherwise to work on the box from a ssh session. But when I try to kill the above process with kill -9 the box hangs completely, including the ssh session. Any other specific information you want from the ssh session while in hang state? -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Bengt Olsson wrote: When I switch from one user to another I get the black screen. Logging in remotely I see that what I presume is a new gdm process consumes almost all CPU: root 5732 99.6 0.5 15312 6160 tty9 RLs+ 15:33 9:40 /usr/bin/X :20 -br -audit 0 -auth /var/lib/gdm/:20.Xauth -nolisten tcp vt9 It is no problem otherwise to work on the box from a ssh session. But when I try to kill the above process with kill -9 the box hangs completely, including the ssh session. Any other specific information you want from the ssh session while in hang state? try an strace -p PID-OF-PROCESS and see if you get anything interesting Sam -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
No output at all from the strace command, even when sending SIGTERM or SIGKILL to the gdm process that was eating cpu. However, the problem went away when I installed xserver-xgl (gutsy). BTW I'm using fglrx 8.37.6 from the gutsy repos. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Happens to me like in comment #2, and with Metacity. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
RE: [Bug 112518] Re: Switch User freezes at blank screen
And in my case killing compiz.real on the display being switced to recovers it. Sam -Original Message- From: iblackburn [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: 30/09/07 03:12 Subject: [Bug 112518] Re: Switch User freezes at blank screen In reply to Nick B. I'd just like to confirm that on my system disabling the SyncToVblank option in compiz solved my problem. I am now able to switch users without any problems. I suspect there are two bugs in play here that give similar symptoms as mine was definitely a compiz problem. Regards, Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a direct subscriber of the bug. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Killing compiz.real worked for me as a workaround, the SyncToVblank switch has cured it completely. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
In reply to Nick B. I'd just like to confirm that on my system disabling the SyncToVblank option in compiz solved my problem. I am now able to switch users without any problems. I suspect there are two bugs in play here that give similar symptoms as mine was definitely a compiz problem. Regards, Iain -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
Re: [Bug 112518] Re: Switch User freezes at blank screen
Mike E. wrote: Hi Jean, I don't have Beryl either, so that isn't it. Most of the time, I can use the Ctrl+Alt+Fx shortcut keys to get back to the session I want to, but sometimes I need to use just Alt+Fx instead because it won't work with the Ctrl key.?? I explained things a little more in detail previously in this post so I won't go into more detail again here. You can check my previous posts starting at comment 8 going through comment 12. It has, but very rarely and with no consistency that I've noticed, locked up the computer before to where I had to do a hard reboot. When it needs a reboot, maybe you can still ssh in and kill some of the programs on the VT thant is active and then ,aybe it will suddenly switch? Sam -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Hi There, This is my first posting on one of these, I'd like to add that I have this issue with the following setup: nvidia drivers, gdm running on Ubuntu 7.04 with desktop effects enabled If I disable desktop effects for every user then all works as expected,the problem only occurs with desktop effects enabled e.g. switch user and then your stuck at a black screen for ever ... If i kill the process remotely by ssh'ing to the box then all recovers ... Regards, Gavin -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Hi Mke E. I noticed after trying Kubuntu that when one switches user, it opens another VT with another X server to that other user. For example, lets say user Joe is logged-in usuallyand has locked the screen. Then user Sarah arrives and activates the Switch User button, then KDM appears as expected. She loges-in to work, and now Joe arrives to continue his work. She lockes the screen, and then Joe just has to push control-alt-F7 to access his locked session, while leaving Sarah's session intact and accessible via control-alt-F9. In other words, is that possible that this situation is making a confusion here? You do not have Compiz neither Metacity activated, well, do you have Beryl? I've extensively played with those Switch user options, and the only time it really lock-up the computer, leaving it in an unusable state is when desktop effects (either by Beryl or Compiz) are activated while switching users. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Hi Jean, I don't have Beryl either, so that isn't it. Most of the time, I can use the Ctrl+Alt+Fx shortcut keys to get back to the session I want to, but sometimes I need to use just Alt+Fx instead because it won't work with the Ctrl key.?? I explained things a little more in detail previously in this post so I won't go into more detail again here. You can check my previous posts starting at comment 8 going through comment 12. It has, but very rarely and with no consistency that I've noticed, locked up the computer before to where I had to do a hard reboot. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
As has been mentioned previously many times in this thread this is not a Compiz problem. It is most definitely a xorg problem as it occurs on Kubuntu with neither Compiz or Metacity installed. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
If this bug has been definitively attributed to xorg then I apologize for implying confusion as to its source. I've been primarily reading other bug reports documenting similar behaviour and they are fairly evenly split between attributing it to compiz, xorg or quite often nvidia. Regardless, the option of automatically switching to metacity before switching users is still a valid workaround for those of us not using Kubuntu. After fairly extensive messing around with options and preferences, it definitely occurs on my system (Ubuntu Gutsy amd64) *only* when compiz is running. Unfortunately, I'm not a programmer and so lack the skills to automate the workaround.I've written the creator of the fast-user-switch-applet asking if it's possible to include a run-script-on-switch-user option but have not yet heard back. Is anyone else up to the task? -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I'd like to confirm this bug on Gutsy amd64 (nvidia 6100) with compiz-fusion running. This looks like a compiz-fusion issue as this simply does not occur with metacity. With compiz-fusion running it is simply not possible to work with multiple users. The only option is a hard reboot. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Yes, I've gotten it to work correctly with Metacity. I think it has something to do with the SyncToVblank option in Compiz. I'm going to try disabling SyncToVblank in Compiz in both user accounts and try to switch users. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
An easy workaround just occurred to me. Is it possible to automatically switch to metacity when calling either switch-user, lock-screen, or log-out? As long as we can do that, and invoke compiz automatically when logging in then this bug will be a non- issue while we wait for compiz, nvidia, and xorg to sort out whose fault it is and how to fix it. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
ruoja, could you please explain what you did with the extmod in a little more detail - thanks -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I tried disabled extmod in my xorg.conf, but with or without it, if I login (with compiz enabled) and switch to a text console and back, then I'm stuck on a blank screen and need a remote gdm restart doing. In any case I find that a remote kill of the compiz.real process will unlock the vt lock and recover things pretty much (apart from compiz.real being dead stops doing its work) username 11919 11894 3 21:24 ?00:00:01 /usr/bin/compiz.real --ignore-desktop-hints --replace ccp kill -9 11919 in my case recovered it. So the bug is in compiz.real, maybe? I did an strace on compiz as I switched to a text console and back again ** Attachment added: strace of compiz.real while stuck in black screen in change back from text console http://launchpadlibrarian.net/9248605/compiz.trace -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I disabled the specific extension(s) included in extmod by editing xorg.conf - commenting out the line that usually loads extmod and replacing it with a SubSection entry, including the option to leave out the specified part. Like this: in file /etc/X11/xorg.conf : # Loadextmod SubSection extmod Option omit sync EndSubSection -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Very well. I'll remind that in my case neither beryl or compiz is installed, as I explained earlier. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I've tried disabling parts of the extmod module. With sync omitted, I haven't been able to reproduce the problem anymore. With shape disabled, I've had one hangup, but haven't been able to duplicate it so far. Other parts haven't made a difference. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
It's obvious this isn't a Desktop Effects issue. Changing to GDM. ** Changed in: gdm (Ubuntu) Sourcepackagename: desktop-effects = gdm -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
Oops. Happens with KDM too it seems. Marking this one as Invalid for now. Must be a Xorg issue. ** Changed in: gdm (Ubuntu) Status: New = Invalid -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 112518] Re: Switch User freezes at blank screen
I also get the frozen black screen, most often in the exact situation described in the original report, but sometimes also when a single user tries to log out or switch accounts. Running Xubuntu 7.04 using i810 display driver on a HP Pavilion ze4900 series laptop. No Beryl, Compiz or composite features. -- Switch User freezes at blank screen https://bugs.launchpad.net/bugs/112518 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug contact for gdm in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
