So I left my computer running unattended for about 2 hours sitting idle and when I returned I was brought back to the log-in screen in VGA mode... weird, I thought. Thinking nothing of it, I just restarted and got back to normal 1080 resolution at the log-in screen. But I proceeded to see what's going on in HWiNFO and GPU-Z, both detected only the HD3000 GPU!!!
Rebooted and into the setup screen, same thing - Discrete GPU not detected!! I reflashed back from A09 to the unlocked A08 (since I also wanted SATA III back) with no other changes and this brought back the detection of the 580M, but first try to HWiNFO found only with I-GPU again, but restarting once again brought both GPUs back...
I've not done any modding whatsoever and now I'm inclined never to do so... Just wondering if anyone else has experienced this and whether I should get Dell support to take this back...
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My experience is that HWiNFO will only show the dedicated GPU if a program is using it. Otherwise the GPU is switched off (compliments of Optimus) and will not be detected.
Not sure about the VGA mode though. Sounds like it rebooted itself into safe mode or VGA mode which is weird. -
For a bit there, the D-GPU was properly gone - neither the BIOS setup nor the Nvidia control panel detected the 580M... There hasn't been a repeat since then. I'll keep monitoring it and report.
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yup, this is exactly my problem back then....
my 6990m is just disappear...., can't detected on device manager, same happen also in BIOS mode....
this is a GPU hardware faulty. I sent my laptop back to Dell, and they replace my GPU along with the new motherboard. Better you're doing the same....
Experienced this problem after 3 month of used....
I think my R3 has a flaky D-GPU...
Discussion in 'Alienware 17 and M17x' started by superdave643, Feb 16, 2012.