This bug effects me as well. Let alone installation, I can't even use Live CD due to this bug. Ubuntu is completely unusable. See more in this thread (with screen shots). SuSe Linux boots and Works just fine but Ubuntu hangs all the time.
My laptop has GTX880M 8GB GPU. Obviously this is an Nvidia related bug and no importance is given to fix it. Shame for Linux community not to support a top of the line graphics card in 2015. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-raring in Ubuntu. https://bugs.launchpad.net/bugs/1097178 Title: nouveau failed to idle channel 0xcccc0000 Status in linux-lts-raring package in Ubuntu: Invalid Bug description: Hi, With Kernel 3.7.* and 3.8rc1 and rc2 I have this error Jan 8 09:05:21 pcpoil kernel: [407794.764008] nouveau E[ 1442] failed to idle channel 0xcccc0000 Jan 8 09:05:23 pcpoil kernel: [407796.764446] nouveau W[PCIEGART][0000:01:00.0] flush timeout, 0x00000002 Jan 8 09:05:25 pcpoil kernel: [407798.764540] nouveau W[PCIEGART][0000:01:00.0] flush timeout, 0x00000002 Jan 8 09:05:27 pcpoil kernel: [407800.764586] nouveau W[PCIEGART][0000:01:00.0] flush timeout, 0x00000002 Jan 8 09:05:27 pcpoil kernel: [407800.768002] [sched_delayed] sched: RT throttling activated The system become instable, and I need to reboot. It was working fine with kernel 3.5 Kernel from http://kernel.ubuntu.com/~kernel-ppa/mainline on Ubuntu 12.10 VGA : 01:00.0 VGA compatible controller: NVIDIA Corporation NV43 [GeForce 6600 GT] (rev a2) dpkg -l |grep nouveau libdrm-nouveau1a:amd64 2.4.40+git20130104.baf0a7da-0ubuntu0ricotz~quantal amd64 libdrm-nouveau2:amd64 2.4.40+git20130104.baf0a7da-0ubuntu0ricotz~quantal amd64 xserver-xorg-video-nouveau 1:1.0.6+git20130107.8f934fad-0ubuntu0sarvatt~quantal amd64 uname -a Linux pcpoil 3.7.0-7-generic #15-Ubuntu SMP Sat Dec 15 16:34:25 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Best regards, To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-raring/+bug/1097178/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp