Comment 31 for bug 1158689

Hi, same here after updating to Ubuntu 12.04.3

Kernel 3.8.0-33-generic

lspci -nnvv says:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation G86M [GeForce 8400M G] [10de:0428] (rev a1) (prog-if 00 [VGA controller])
 Subsystem: Fujitsu Limited. Device [10cf:1422]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
 Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0, Cache Line Size: 64 bytes
 Interrupt: pin A routed to IRQ 16
 Region 0: Memory at de000000 (32-bit, non-prefetchable) [size=16M]
 Region 1: Memory at e0000000 (64-bit, prefetchable) [size=256M]
 Region 3: Memory at dc000000 (64-bit, non-prefetchable) [size=32M]
 Region 5: I/O ports at 2000 [size=128]
 Expansion ROM at <unassigned> [disabled]
 Capabilities: <access denied>
 Kernel driver in use: nouveau
 Kernel modules: nouveau, nvidiafb

Graphic is distorted once it happens the system is frozen ( with some luck I may reach a terminal )

Before it happens the fontcolor in Windowframes changes to "white on white " e.g. same as the background color
I run a E8410 Lifebook

BTW : Using the Nvidia proprietary drivers is not an option they made the system unusable at all and forced me to reinstall several times