I have the same problem very often during a day on a Lenovo ThinkCentre M900 (see specs below).
Often this problem is preceded by Chrome tabs blinking or blacking out but I can't be sure it is a related problem. In those cases, the only solution is to kill Chrome and restart the application.
When Ubuntu freezes it starts with either a frozen cursor or unable to use the cursor anywhere. Other times Ubuntu becomes very slow before freezing.
product: 10FCS22R00 (LENOVO_MT_10FC_BU_LENOVO_FM_ThinkCentre M900)
product: 30BC
product: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz product: M378A1K43CB2-CRC product: M378A1K43CB2-CRC
product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16) product: GK208B [GeForce GT 720] product: GK208 HDMI/DP Audio Controller product: 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller product: 100 Series/C230 Series Chipset Family MEI Controller #1 product: Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode] product: Q170 Chipset LPC/eSPI Controller product: 100 Series/C230 Series Chipset Family Power Management Controller product: 100 Series/C230 Series Chipset Family HD Audio Controller product: 100 Series/C230 Series Chipset Family SMBus product: Ethernet Connection (2) I219-LM product: SanDisk SD8SB8U5 product: DVD-RW DH16AFSH product: BUP Slim RD
product: To Be Filled By O.E.M.
I have the same problem very often during a day on a Lenovo ThinkCentre M900 (see specs below).
Often this problem is preceded by Chrome tabs blinking or blacking out but I can't be sure it is a related problem. In those cases, the only solution is to kill Chrome and restart the application.
When Ubuntu freezes it starts with either a frozen cursor or unable to use the cursor anywhere. Other times Ubuntu becomes very slow before freezing.
product: 10FCS22R00 (LENOVO_ MT_10FC_ BU_LENOVO_ FM_ThinkCentre M900)
product: M378A1K43CB2-CRC
product: M378A1K43CB2-CRC
product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16)
product: GK208B [GeForce GT 720]
product: GK208 HDMI/DP Audio Controller
product: 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller
product: 100 Series/C230 Series Chipset Family MEI Controller #1
product: Q170/Q150/ B150/H170/ H110/Z170/ CM236 Chipset SATA Controller [AHCI Mode]
product: Q170 Chipset LPC/eSPI Controller
product: 100 Series/C230 Series Chipset Family Power Management Controller
product: 100 Series/C230 Series Chipset Family HD Audio Controller
product: 100 Series/C230 Series Chipset Family SMBus
product: Ethernet Connection (2) I219-LM
product: SanDisk SD8SB8U5
product: DVD-RW DH16AFSH
product: BUP Slim RD
product: 30BC
product: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers
product: To Be Filled By O.E.M.