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I have 2020 MBP 13" i7/32/4TB 10.15.16 connected to a CalDigit TS3 and an LG 34BK95U-W Thunderbolt 3 monitor. Everything started within the first week of usage and has gone progressively downhill, I have subsequently had CalDigit Replace the thunderbolt dock but that didn't fix anything. I experience the random restarts when computer is in power saving mode sometimes it happens right away sometimes it happens hours later. Now I am experiencing intermittent freezing constantly once computer is booted up, it usually last for 5 - 10 seconds at a time, sometimes they go away sometimes I get a complete freeze. I am baffled at this point and have been connected with a Sr. Advisor and they pulled all the diagnostic report from my computer. He said he plans to contact me tomorrow after consulting engineers, but I don't have high hopes given how long this has been happening with the 16 and now the 13.

Here is my Panic report. (cpu 0 caller 0xffffff7f94de280c): "Graphics firmware encountered an exception (eip: 0x13912, fault #: 0xd)\n"@icl/sched3/IGGuC.cpp:993.

It would be great if we could figure out a solution.
 
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