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[Bug 565835] Re: [RV250] Compiz/desktop effects break new log-ins/fast user switching

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Andreas Modinos <admodinos@xxxxxxxxxxx>
Date: Thu, 29 Apr 2010 10:56:41 -0000
Reply-to: Bug 565835 <565835@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
This bug became pretty simple after all the testing (sorry about the
flood of updates).

All sessions initiated from sessions without Compiz running turn out ok, and can be switched back to.
If you create a log-in from a user who has desktop effects enabled, the new session will be corrupt no matter how many times you switch between them.

** Summary changed:

- [RV250] User switching breaks X-session(s)
+ [RV250] Compiz/desktop effects break new log-ins/fast user switching

** Description changed:

  Binary package hint: xorg
+ 
+ This bug report has been revised because some of the originally
+ described symptoms were in fact of another bug.
  
  Steps to repeat:
  
  1. Create two user accounts
  2. Log in as one or the other
  3. Attempt to switch users by selecting the other user's name or by selecting 'Switch user...' from the power menu.
  
  What happens:
- 
- I get a screen with corrupted graphics that does not respond to input
- other than showing mouse movement (cursor is a huge block instead of a
- pointer). See attached screenshot for more details. If I use Ctrl+Alt+Fx
- key kombo I can succesfully switch to any of the text mode terminals,
- but will have 2-3 corrupt graphical terminals in range F7-F9. One
- terminal will host an unresponsive gnome screensaver dialog, one a blank
- screen with an arrow, and one the corrupt graphics or just a blinking
- text cursor. The blank screen with the arrow is the working x-session,
- because it will take commands. For example I was able to reboot by doing
- a Alt+F2, then typing gnome-terminal, then typing sudo reboot and then
- typing my password and hitting enter.
+ I get a screen with corrupted graphics that does not respond to input other than showing mouse movement (cursor is a huge block instead of a pointer). See attached screenshot for more details. If I use Ctrl+Alt+Fx key kombo I can succesfully switch back to my working X-session, but all new log-ins attempted will be garbled. This bug goes away if desktop effects are disabled for the user. It is possible to create a situation where you switch from a user without desktop effects to one who uses them, and not be able to switch back.
  
  What should happen:
  I should either get a login screen or the screensaver password dialog for the other user!
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xserver-xorg 1:7.5+5ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-21-generic i686
  Architecture: i386
  Date: Sun Apr 18 12:36:36 2010
  DkmsStatus: Error: [Errno 2] Tiedostoa tai hakemistoa ei ole
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100224.1)
  Lsusb:
-  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 002 Device 002: ID 413c:8000 Dell Computer Corp. BC02 Bluetooth Adapter
-  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
-  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
+  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 002 Device 002: ID 413c:8000 Dell Computer Corp. BC02 Bluetooth Adapter
+  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
+  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Computer Corporation Latitude D600
  PccardctlIdent:
-  Socket 0:
-    no product info available
-  Socket 1:
-    product info: "O2Micro", "SmartCardBus Reader", "V1.0", ""
-    manfid: 0xffff, 0x0001
+  Socket 0:
+    no product info available
+  Socket 1:
+    product info: "O2Micro", "SmartCardBus Reader", "V1.0", ""
+    manfid: 0xffff, 0x0001
  PccardctlStatus:
-  Socket 0:
-    no card
-  Socket 1:
-    5.0V 16-bit PC Card
-    Subdevice 0 (function 0) [unbound]
+  Socket 0:
+    no card
+  Socket 1:
+    5.0V 16-bit PC Card
+    Subdevice 0 (function 0) [unbound]
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=99ec916b-a551-4e75-85d2-60d165d6e870 ro quiet splash
  ProcEnviron:
-  LANG=fi_FI.utf8
-  SHELL=/bin/bash
+  LANG=fi_FI.utf8
+  SHELL=/bin/bash
  SourcePackage: xorg
  dmi.bios.date: 06/29/2005
  dmi.bios.vendor: Dell Computer Corporation
  dmi.bios.version: A16
  dmi.board.name: 0D2125
  dmi.board.vendor: Dell Computer Corporation
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Computer Corporation
  dmi.modalias: dmi:bvnDellComputerCorporation:bvrA16:bd06/29/2005:svnDellComputerCorporation:pnLatitudeD600:pvr:rvnDellComputerCorporation:rn0D2125:rvr:cvnDellComputerCorporation:ct8:cvr:
  dmi.product.name: Latitude D600
  dmi.sys.vendor: Dell Computer Corporation
  system:
-  distro:             Ubuntu
-  codename:           lucid
-  architecture:       i686
-  kernel:             2.6.32-21-generic
+  distro:             Ubuntu
+  codename:           lucid
+  architecture:       i686
+  kernel:             2.6.32-21-generic

** Description changed:

  Binary package hint: xorg
  
  This bug report has been revised because some of the originally
  described symptoms were in fact of another bug.
  
  Steps to repeat:
  
  1. Create two user accounts
  2. Log in as one or the other
  3. Attempt to switch users by selecting the other user's name or by selecting 'Switch user...' from the power menu.
  
  What happens:
- I get a screen with corrupted graphics that does not respond to input other than showing mouse movement (cursor is a huge block instead of a pointer). See attached screenshot for more details. If I use Ctrl+Alt+Fx key kombo I can succesfully switch back to my working X-session, but all new log-ins attempted will be garbled. This bug goes away if desktop effects are disabled for the user. It is possible to create a situation where you switch from a user without desktop effects to one who uses them, and not be able to switch back.
+ I get a screen with corrupted graphics that does not respond to input other than showing mouse movement (cursor is a huge block instead of a pointer). See attached screenshot for more details. If I use Ctrl+Alt+Fx key kombo I can succesfully switch back to my working X-session, but all new log-ins attempted will be garbled.
  
  What should happen:
  I should either get a login screen or the screensaver password dialog for the other user!
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xserver-xorg 1:7.5+5ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-21-generic i686
  Architecture: i386
  Date: Sun Apr 18 12:36:36 2010
  DkmsStatus: Error: [Errno 2] Tiedostoa tai hakemistoa ei ole
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100224.1)
  Lsusb:
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 002: ID 413c:8000 Dell Computer Corp. BC02 Bluetooth Adapter
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Computer Corporation Latitude D600
  PccardctlIdent:
   Socket 0:
     no product info available
   Socket 1:
     product info: "O2Micro", "SmartCardBus Reader", "V1.0", ""
     manfid: 0xffff, 0x0001
  PccardctlStatus:
   Socket 0:
     no card
   Socket 1:
     5.0V 16-bit PC Card
     Subdevice 0 (function 0) [unbound]
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=99ec916b-a551-4e75-85d2-60d165d6e870 ro quiet splash
  ProcEnviron:
   LANG=fi_FI.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  dmi.bios.date: 06/29/2005
  dmi.bios.vendor: Dell Computer Corporation
  dmi.bios.version: A16
  dmi.board.name: 0D2125
  dmi.board.vendor: Dell Computer Corporation
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Computer Corporation
  dmi.modalias: dmi:bvnDellComputerCorporation:bvrA16:bd06/29/2005:svnDellComputerCorporation:pnLatitudeD600:pvr:rvnDellComputerCorporation:rn0D2125:rvr:cvnDellComputerCorporation:ct8:cvr:
  dmi.product.name: Latitude D600
  dmi.sys.vendor: Dell Computer Corporation
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       i686
   kernel:             2.6.32-21-generic

** Summary changed:

- [RV250] Compiz/desktop effects break new log-ins/fast user switching
+ [RV250] Creating a new log-in/X-session with desktop effects enabled results in a garbled new session

** Description changed:

  Binary package hint: xorg
  
  This bug report has been revised because some of the originally
  described symptoms were in fact of another bug.
  
  Steps to repeat:
  
  1. Create two user accounts
  2. Log in as one or the other
  3. Attempt to switch users by selecting the other user's name or by selecting 'Switch user...' from the power menu.
  
  What happens:
  I get a screen with corrupted graphics that does not respond to input other than showing mouse movement (cursor is a huge block instead of a pointer). See attached screenshot for more details. If I use Ctrl+Alt+Fx key kombo I can succesfully switch back to my working X-session, but all new log-ins attempted will be garbled.
  
  What should happen:
  I should either get a login screen or the screensaver password dialog for the other user!
+ 
+ Work-around: disable desktop effects for the user initiating user switch
+ or creating new log-ins.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 10.04
  Package: xserver-xorg 1:7.5+5ubuntu1
  ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
  Uname: Linux 2.6.32-21-generic i686
  Architecture: i386
  Date: Sun Apr 18 12:36:36 2010
  DkmsStatus: Error: [Errno 2] Tiedostoa tai hakemistoa ei ole
  InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha i386 (20100224.1)
  Lsusb:
   Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 002 Device 002: ID 413c:8000 Dell Computer Corp. BC02 Bluetooth Adapter
   Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Computer Corporation Latitude D600
  PccardctlIdent:
   Socket 0:
     no product info available
   Socket 1:
     product info: "O2Micro", "SmartCardBus Reader", "V1.0", ""
     manfid: 0xffff, 0x0001
  PccardctlStatus:
   Socket 0:
     no card
   Socket 1:
     5.0V 16-bit PC Card
     Subdevice 0 (function 0) [unbound]
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic root=UUID=99ec916b-a551-4e75-85d2-60d165d6e870 ro quiet splash
  ProcEnviron:
   LANG=fi_FI.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  dmi.bios.date: 06/29/2005
  dmi.bios.vendor: Dell Computer Corporation
  dmi.bios.version: A16
  dmi.board.name: 0D2125
  dmi.board.vendor: Dell Computer Corporation
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Computer Corporation
  dmi.modalias: dmi:bvnDellComputerCorporation:bvrA16:bd06/29/2005:svnDellComputerCorporation:pnLatitudeD600:pvr:rvnDellComputerCorporation:rn0D2125:rvr:cvnDellComputerCorporation:ct8:cvr:
  dmi.product.name: Latitude D600
  dmi.sys.vendor: Dell Computer Corporation
  system:
   distro:             Ubuntu
   codename:           lucid
   architecture:       i686
   kernel:             2.6.32-21-generic

-- 
[RV250] Creating a new log-in/X-session with desktop effects enabled results in a garbled new session
https://bugs.launchpad.net/bugs/565835
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which is the registrant for xserver-xorg-driver-ati.
References

[Bug 565835] [NEW] User switching breaks X-session(s)
From: Andreas Modinos, 2010-04-18