There appear to be repeating file system problems so I recommend investigating those first. I can't tell if it's a harddisk or an optical drive...
[19894.148839] SQUASHFS error: xz decompression failed, data probably corrupt [19894.148842] SQUASHFS error: squashfs_read_data failed to read block 0xa8810 [19894.152622] SQUASHFS error: xz decompression failed, data probably corrupt [19894.152626] SQUASHFS error: squashfs_read_data failed to read block 0x1190b4 [19900.707383] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x0 [19900.707391] ata1.00: BMDMA stat 0x24 [19900.707396] ata1.00: failed command: READ DMA EXT [19900.707405] ata1.00: cmd 25/00:08:10:f4:cd/00:00:12:00:00/e0 tag 0 dma 4096 in res 51/40:00:11:f4:cd/40:00:12:00:00/e0 Emask 0x9 (media error) [19900.707410] ata1.00: status: { DRDY ERR } [19900.707416] ata1.00: error: { UNC } [19900.713332] ata1.00: configured for UDMA/133 [19900.713361] sd 0:0:0:0: [sda] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [19900.713368] sd 0:0:0:0: [sda] tag#0 Sense Key : Medium Error [current] [19900.713374] sd 0:0:0:0: [sda] tag#0 Add. Sense: Unrecovered read error - auto reallocate failed [19900.713380] sd 0:0:0:0: [sda] tag#0 CDB: Read(10) 28 00 12 cd f4 10 00 00 08 00 [19900.713383] print_req_error: I/O error, dev sda, sector 315487249 [19900.713423] ata1: EH complete [19905.840133] SQUASHFS error: xz decompression failed, data probably corrupt [19905.840140] SQUASHFS error: squashfs_read_data failed to read block 0x16ab64 [19905.847696] SQUASHFS error: xz decompression failed, data probably corrupt [19905.847699] SQUASHFS error: squashfs_read_data failed to read block 0x15789c [19905.848108] SQUASHFS error: xz decompression failed, data probably corrupt ** Summary changed: - gnome terminal + Apps are closing immediately instead of launching -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/2061856 Title: Apps are closing immediately instead of launching To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/2061856/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp