Public bug reported:
AFter using Kubuntu Raring Ringtail 13.04, in live-DVD or live-pendrive,
after an unpredictable time KDE seems to freeze.
When I open another screen with Ctrl+Alt+F4 and do a sudo su to login
as root and go back to Ctrl+Alt+F7, prior to freezing, when KDE freezes,
it is possible to change again to this Ctrl+Alt+F4 screen to see the
following error message:
[518.188774] nouveau E-[ DRM] GPU lockup - switching to software fbcon
This didn't happen in previous Kubuntu versions, probably because they
were not using nouveau.
After several times trying to install Kubuntu raring, with the live-
pendrive, for some reason the live-pendrive booted using the proprietary
driver (I saw the nVidia logo before it loaded KDE). This allowed me to
install 13.04, but after installation and boot, there was nouveau again
with the same freezing problem. Luckily, one of the times I rebooted, I
managed to change to proprietary nVidia driver using "Additional
Drivers" before another freeze and the problem was solved after reboot.
My hardware:
# lspci
00:00.0 Host bridge: NVIDIA Corporation MCP79 Host Bridge (rev b1)
00:00.1 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.0 ISA bridge: NVIDIA Corporation MCP79 LPC Bridge (rev b3)
00:03.1 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.2 SMBus: NVIDIA Corporation MCP79 SMBus (rev b1)
00:03.3 RAM memory: NVIDIA Corporation MCP79 Memory Controller (rev b1)
00:03.5 Co-processor: NVIDIA Corporation MCP79 Co-processor (rev b1)
00:04.0 USB controller: NVIDIA Corporation MCP79 OHCI USB 1.1 Controller (rev
b1)
00:04.1 USB controller: NVIDIA Corporation MCP79 EHCI USB 2.0 Controller (rev
b1)
00:08.0 Audio device: NVIDIA Corporation MCP79 High Definition Audio (rev b1)
00:09.0 PCI bridge: NVIDIA Corporation MCP79 PCI Bridge (rev b1)
00:0a.0 Ethernet controller: NVIDIA Corporation MCP79 Ethernet (rev b1)
00:0b.0 SATA controller: NVIDIA Corporation MCP79 AHCI Controller (rev b1)
00:10.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:15.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
00:17.0 PCI bridge: NVIDIA Corporation MCP79 PCI Express Bridge (rev b1)
02:00.0 VGA compatible controller: NVIDIA Corporation C79 [GeForce 9200M G]
(rev b1)
06:00.0 Network controller: Intel Corporation Centrino Advanced-N 6200 (rev 35)
(in fact, it is supposed to be GeForce 8200M, not 9200M as reported)
# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Hope this may help Kubuntu develpment. Thanks in advance.
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: 13.04 freeze gpu kubuntu lockup nouveau raring
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https://bugs.launchpad.net/bugs/1175631
Title:
Kubuntu 13.04 raring freezes - nouveau GPU lockup
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