Guys, I run into a difficult situation and need your help. I got 2 reports from different people with Dell Precision M6500 with ATI FirePro M7820 GPU. When they run HWiNFO and opened sensors it caused the LCD to loose signal. I believe this has something to do with the GPU I2C device scan HWiNFO performs. HWiNFO performs just READ commands and doesn't alter anything, so such thing should never happen. But is seems that machine with that GPU only has some weird device residing there which goes crazy and disables the LCD after such scan ! Plugging an external monitor seems to work, just the integrated LCD doesn't. The biggest problem is that the machine won't recover from this state anymore !! Even a total shutdown and removing all power doesn't help. I don't think there's a physical damage to some component, it just seems the BIOS/VBIOS probably don't reinitialize that weird device again and it's stuck in a wrong state. Though I'm not exactly sure what happened there and why, in my opinion this is a design flaw. I have intercepted this in HWiNFO (v4.19-1935 Beta) and I'm disabling the GPU I2C on those machines. I believe other tools like GPU-Z, TRiXX or AIDA64 might be affected as well... Unfortunately, for a few people it was too late. One of the guys probably ended up with an RMA, but the other unlucky guy bought the new expensive machine without a warranty. Do you have any idea how this might be fixed ? Please come up with any suggestions...