Public bug reported: This bug still exists and looks like it was identified as part of the Nouveau video driver, experienced now with Ubuntu 16.10.
Timed out (original?) bug thread: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1015165 Trackback on forums with no clear resolution: https://ubuntuforums.org/showthread.php?t=2074280 Details: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.10 Release: 16.10 Codename: yakkety $ lsmod | grep 'i2c' i2c_piix4 24576 0 i2c_algo_bit 16384 1 nouveau support@apollo:~$ lsmod | grep 'nouveau' nouveau 1572864 1 mxm_wmi 16384 1 nouveau video 40960 1 nouveau i2c_algo_bit 16384 1 nouveau ttm 102400 1 nouveau drm_kms_helper 167936 1 nouveau drm 368640 4 nouveau,ttm,drm_kms_helper wmi 16384 2 mxm_wmi,nouveau $ uname -a Linux apollo 4.8.0-40-generic #43-Ubuntu SMP Thu Feb 23 16:01:19 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux $ lspci | grep -i 'nvidia' 01:00.0 VGA compatible controller: NVIDIA Corporation G92 [GeForce GTS 250] (rev a2) dmesg spam : [74243.701317] Raw EDID: [74243.702234] 78 ee c1 25 a3 56 4b 99 27 11 50 54 bf ef 80 95 [74243.703153] 00 71 4f 81 80 95 0f 01 01 01 01 01 01 01 01 9a [74243.704050] 29 a0 d0 51 84 22 30 50 98 36 00 98 ff 10 00 00 [74243.704925] 1c 00 00 00 fd 00 38 4b 1e 53 0e 00 0a 20 20 20 [74243.705816] 20 20 20 00 00 00 ff 00 37 33 37 33 31 38 33 49 [74243.706732] 32 38 57 53 01 00 00 00 fc 00 44 45 4c 4c 20 45 [74243.707617] 31 39 38 57 46 50 0a 00 3a ff ff ff ff ff ff ff [74243.708508] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [74243.999965] i2c i2c-1: sendbytes: NAK bailout. [74246.557345] i2c i2c-1: sendbytes: NAK bailout. [74246.843767] i2c i2c-1: sendbytes: NAK bailout. [74247.128195] i2c i2c-1: sendbytes: NAK bailout. [74249.366638] i2c i2c-1: sendbytes: NAK bailout. [74250.883810] i2c i2c-1: sendbytes: NAK bailout. [74251.295261] i2c i2c-1: sendbytes: NAK bailout. [74252.939101] i2c i2c-1: sendbytes: NAK bailout. [74254.200165] i2c i2c-1: sendbytes: NAK bailout. [74254.885717] i2c i2c-1: readbytes: ack/nak timeout [74255.169703] i2c i2c-1: readbytes: ack/nak timeout [74255.737676] i2c i2c-1: readbytes: ack/nak timeout [74257.450821] i2c i2c-1: sendbytes: NAK bailout. No packages : $ dpkg --list | grep -i 'nvidia' $ dpkg --list | grep -i 'nouveau' ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1675540 Title: i2c i2c-1: sendbytes: NAK bailout. Status in linux package in Ubuntu: Incomplete Bug description: This bug still exists and looks like it was identified as part of the Nouveau video driver, experienced now with Ubuntu 16.10. Timed out (original?) bug thread: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1015165 Trackback on forums with no clear resolution: https://ubuntuforums.org/showthread.php?t=2074280 Details: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.10 Release: 16.10 Codename: yakkety $ lsmod | grep 'i2c' i2c_piix4 24576 0 i2c_algo_bit 16384 1 nouveau support@apollo:~$ lsmod | grep 'nouveau' nouveau 1572864 1 mxm_wmi 16384 1 nouveau video 40960 1 nouveau i2c_algo_bit 16384 1 nouveau ttm 102400 1 nouveau drm_kms_helper 167936 1 nouveau drm 368640 4 nouveau,ttm,drm_kms_helper wmi 16384 2 mxm_wmi,nouveau $ uname -a Linux apollo 4.8.0-40-generic #43-Ubuntu SMP Thu Feb 23 16:01:19 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux $ lspci | grep -i 'nvidia' 01:00.0 VGA compatible controller: NVIDIA Corporation G92 [GeForce GTS 250] (rev a2) dmesg spam : [74243.701317] Raw EDID: [74243.702234] 78 ee c1 25 a3 56 4b 99 27 11 50 54 bf ef 80 95 [74243.703153] 00 71 4f 81 80 95 0f 01 01 01 01 01 01 01 01 9a [74243.704050] 29 a0 d0 51 84 22 30 50 98 36 00 98 ff 10 00 00 [74243.704925] 1c 00 00 00 fd 00 38 4b 1e 53 0e 00 0a 20 20 20 [74243.705816] 20 20 20 00 00 00 ff 00 37 33 37 33 31 38 33 49 [74243.706732] 32 38 57 53 01 00 00 00 fc 00 44 45 4c 4c 20 45 [74243.707617] 31 39 38 57 46 50 0a 00 3a ff ff ff ff ff ff ff [74243.708508] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [74243.999965] i2c i2c-1: sendbytes: NAK bailout. [74246.557345] i2c i2c-1: sendbytes: NAK bailout. [74246.843767] i2c i2c-1: sendbytes: NAK bailout. [74247.128195] i2c i2c-1: sendbytes: NAK bailout. [74249.366638] i2c i2c-1: sendbytes: NAK bailout. [74250.883810] i2c i2c-1: sendbytes: NAK bailout. [74251.295261] i2c i2c-1: sendbytes: NAK bailout. [74252.939101] i2c i2c-1: sendbytes: NAK bailout. [74254.200165] i2c i2c-1: sendbytes: NAK bailout. [74254.885717] i2c i2c-1: readbytes: ack/nak timeout [74255.169703] i2c i2c-1: readbytes: ack/nak timeout [74255.737676] i2c i2c-1: readbytes: ack/nak timeout [74257.450821] i2c i2c-1: sendbytes: NAK bailout. No packages : $ dpkg --list | grep -i 'nvidia' $ dpkg --list | grep -i 'nouveau' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1675540/+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