This bug, or one very similar, also affects me.
The freeze only occurs when using dash.
The mouse pointer still moves but nothing responds and the rest of the
screen including clock, pannel, dash, all programs, etc are frozen.
HOWEVER, Ctr+Alt+F1-7 still work to open other tty's.
The quick workaround that works for me is to kill compiz like so.
1) Press Ctrl+Alt+F3
2) Log in to a terminal
3) type ps -A | grep compiz
and make note of the process id (pid)
4) type kill (pid)
replacing (pid) with the process id of compiz for your session eg. kill
1274
5) Press Ctrl+Alt+F7
You should be returned to your desktop which will be missing a panel,
dash, etc. These will automatically reload in a few moments.
P.S. The following command could be substituted for steps 2 and 3. I have made
it into a bash script called killcompiz
sudo kill $(ps -A | grep compiz | awk '{ print $1 }')
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-ati in Ubuntu.
https://bugs.launchpad.net/bugs/999645
Title:
Freeze with unity 3d (12.04)
Status in “xserver-xorg-video-ati” package in Ubuntu:
Confirmed
Bug description:
The problem is a total random freeze with unity 3d, i solve the
problem with unity 2d. I suspect radeon driver (Gallium 0.4 on ATI
RV515) don't interpret correctly 3d instructions.
It's a fresh install of Ubuntu Precise
lspci output:
00:00.0 Host bridge: Intel Corporation 82945G/GZ/P/PL Memory Controller Hub
(rev 02)
00:01.0 PCI bridge: Intel Corporation 82945G/GZ/P/PL PCI Express Root Port
(rev 02)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition
Audio Controller (rev 01)
00:1d.0 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI
Controller #1 (rev 01)
00:1d.1 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI
Controller #2 (rev 01)
00:1d.2 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI
Controller #3 (rev 01)
00:1d.3 USB controller: Intel Corporation N10/ICH 7 Family USB UHCI
Controller #4 (rev 01)
00:1d.7 USB controller: Intel Corporation N10/ICH 7 Family USB2 EHCI
Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GH (ICH7DH) LPC Interface Bridge
(rev 01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller
(rev 01)
00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA Controller [IDE
mode] (rev 01)
00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01)
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV516
XT Radeon X1600 Series (Primary)
01:00.1 Display controller: Advanced Micro Devices [AMD] nee ATI RV516 XT
Radeon X1600 Series (Secondary)
02:01.0 FireWire (IEEE 1394): LSI Corporation FW322/323 (rev 70)
02:03.0 Ethernet controller: Atheros Communications Inc. AR5413/AR5414
Wireless Network Adapter [AR5006X(S) 802.11abg] (rev 01)
02:04.0 Multimedia controller: Philips Semiconductors SAA7131/SAA7133/SAA7135
Video Broadcast Decoder (rev d1)
02:08.0 Ethernet controller: Intel Corporation N10/ICH 7 Family LAN
Controller (rev 01)
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