I am experiencing the same kind of freeze on ubuntu 12.04 using either unity 3d or gnome shell. It is a radomly freeze. The screen completly freeze, but the mouse still mouve. After this freeze occured, every applications still run (music ... etc). Sometimes, after severals seconds, compiz restart automaticly (the crash has been detected and an automatic report has been sent). But most of times, I need to restart the X server using the comand (ALT + Impr + K). After that the system remains a litlle bit unstable and I often need to reboot. This crash appears frequently when I start to use the dash, when I am playing video on the wed (firefox) and perhaps when I am using some applications such as minitube, musique (need QT library) and clementine...
This freeze has never occured on ubuntu 11.10. I now activated the proposed updates : the bug still occured but most rarely (only using the dash). Computer : Samsung R60plus Graphical cards : ATI mobility radheon X2300 Driver : Gallium 0.4 on ATI RV515 OS : 32 bit, ubuntu 12.04 lspci : 00:00.0 Host bridge: Advanced Micro Devices [AMD] nee ATI Radeon Xpress 7930 Host Bridge 00:02.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RS7933 PCI Bridge 00:05.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI Device 7935 00:06.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI RS7936 PCI Bridge 00:07.0 PCI bridge: Advanced Micro Devices [AMD] nee ATI Device 7937 00:12.0 SATA controller: Advanced Micro Devices [AMD] nee ATI SB600 Non-Raid-5 SATA 00:13.0 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI0) 00:13.1 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI1) 00:13.2 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI2) 00:13.3 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI3) 00:13.4 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB (OHCI4) 00:13.5 USB controller: Advanced Micro Devices [AMD] nee ATI SB600 USB Controller (EHCI) 00:14.0 SMBus: Advanced Micro Devices [AMD] nee ATI SBx00 SMBus Controller (rev 14) 00:14.1 IDE interface: Advanced Micro Devices [AMD] nee ATI SB600 IDE 00:14.2 Audio device: Advanced Micro Devices [AMD] nee ATI SBx00 Azalia (Intel HDA) 00:14.3 ISA bridge: Advanced Micro Devices [AMD] nee ATI SB600 PCI to LPC Bridge 00:14.4 PCI bridge: Advanced Micro Devices [AMD] nee ATI SBx00 PCI to PCI Bridge 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI M64-S [Mobility Radeon X2300] 02:00.0 Ethernet controller: Atheros Communications Inc. AR242x / AR542x Wireless Network Adapter (PCI-Express) (rev 01) 05:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8039 PCI-E Fast Ethernet Controller (rev 15) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/999645 Title: Freeze with unity 3d (12.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/999645/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
