System freeze while watching video on Chrome/Opera

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While watching video (bbc ipayer, youtube) on Chrome or Opera, my system would freeze after ~30 min of watching with a sound of 1 second length kept repeating. I can't do anything but hard reboot.

My system details are as follows:

• Thinkpad t470p
• Fedora 26 installed with the default Gnome desktop
• Intel Core i7-7700HQ Processor Graphics:
• Intel HD Graphics
• NVIDIA GeForce 940MX 2GB GDRR5

I didn't install any driver or customised anything. This is a vanilla installation. Everything seems to work fine apart from this issue.

lspci output:

➜  ~ /sbin/lspci | grep -e VGA
00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04)
➜  ~ /sbin/lspci | grep -e 3D 
02:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 940MX] (rev a2)