Bug 206420 - boot to white screen with Haswell graphics enabled
Summary: boot to white screen with Haswell graphics enabled
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: CURRENT
Hardware: amd64 Any
: --- Affects Some People
Assignee: freebsd-bugs (Nobody)
Depends on:
Reported: 2016-01-20 08:25 UTC by ucsdboy
Modified: 2018-02-08 23:58 UTC (History)
2 users (show)

See Also:


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Description ucsdboy 2016-01-20 08:25:11 UTC
I recently set my BIOS settings to default while running head, and I noticed that my screen would go entirely white a moment or two after the copyright messages are displayed. I could still log into the system via SSH.

I've confirmed that the BIOS reset re-enabled my onboard Haswell graphics (I have an i7-4770K) and I assume this caused a conflict with my nvidia adapter. This appeared to occur even though the system was not configured to load the nvidia driver at that time.

I thought this might be unexpected behavior.
Comment 1 ucsdboy 2016-01-20 08:26:21 UTC
My apologies, i neglected to explicitly state that after I re-disabled the Haswell graphics, everything returned to normal.
Comment 2 mjl 2018-02-08 23:58:51 UTC
This issue is present in 11.1R, but wasn't present in 10.3R.  This is on a Dell Optiplex 9020 with an Nvidia card installed.  To remove the white screen I had to select "auto" in the Video options in the BIOS (rather than select the Nvidia card).  The auto apparently disables the onboard graphics.