The system freezes when I use many tabs (around 7-8) on firefox.

My sound works fine as the music keeps playing from my phone via bluetooth. I am able to disconnect and connect it again.

Yesterday it crashed when I was using VLC.

The screen just freezes and the sound kept on playing.

The only thing that works is Alt + SysRq + B

$ free
             total        used        free      shared  buff/cache   available
Mem:        7097480     1769984     2276624       95328     3050872    4932872
Swap:       1000444           0     1000444

Acer Nitro AN515-42
8GB Ram
dGPU - AMD Radeon (POLARIS11) (Performance is worse than iGPU for some reason)
Graphics processor is AMD Vega 8
1TB HDD(Dual Booted with Windows 10 (50 : 50 partition))

  • Please tell us about 1. your computer: Brand name and model; 2. your graphics card/chip; 3. Amount of RAM. – sudodus Nov 27 '18 at 12:01
  • Added details @sudodus – Abraham Francis Nov 28 '18 at 11:33
  • This computer should be powerful enough and there is RAM enough for 7-8 tabs in Firefox. Maybe there is a problem with the graphics driver. I suggest that you try Ubuntu 18.10 live from a USB pendrive. 'Try Ubuntu' live for a long time (with a good margin long enough to test if there are problems with freezing). 18.10 comes with a new version of graphics drivers, that might work better in your computer. – sudodus Nov 28 '18 at 12:18
  • I've not done that as it is not an LTS version. Should I? @sudodus – Abraham Francis Nov 28 '18 at 15:11
  • Generally, it is good to stay with the newest LTS version, but if there are problems, you can try other versions (newer non-LTS versions or older but still supported LTS versions). You can try 18.10 live without tampering with your installed system. You can also try some light-weight Ubuntu community flavour (Lubuntu, Ubuntu MATE, Ubuntu Budgie or Xubuntu). – sudodus Nov 28 '18 at 15:18

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