AFAIK this BIOS requires me to disable IGP to even use the discrete graphics. At least that's the first thing I had to do when I first installed the card and every time I wanted to change the monitor connection.
Here's how "disabled" it is:https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1386973/+attachment/4298792/+files/20150114_234953.png
2015-01-14 23:46 GMT-03:00 Michel Dänzer <michel@xxxxxxxxxxx>:
On 15.01.2015 11:10, Federico wrote:
> Here's the 3.18 32-bits 60 lines per screen stack trace. Always using
> softlockup_panic=1.
>
> Quite similar, but slightly different. Hopefully, useful.
>
> https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1386973/+attachment/4298769/+files/20150114_230142.png
Looks like it hangs while reading the video BIOS ROM.
If the integrated GPU is still enabled in the system BIOS setup, does
disabling it avoid the problem?
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