http://bugzilla.suse.com/show_bug.cgi?id=927033 --- Comment #3 from Lin Ma <lma@suse.com> --- (In reply to Lin Ma from comment #2)

(In reply to Bruce Rogers from comment #1)

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I added a reference to https://bugzilla.suse.com/show_bug.cgi?id=893892 because it sounded like the same issue. I haven't taken the time to validate that. But if it is, it might be also worth checking whether the very latest SEABIOS git tree has this fixed. In my understanding, It may be not the same issue. I imported a sles 12 guest image(runlevel 3, no X11 installed) with cirrus vga card, The screen goes blank as well

This cirrus issue is now being tracked in a new bug. Please refer to https://bugzilla.suse.com/show_bug.cgi?id=929812 - KMS for cirrus doesn't work well under multi-user.target, It causes VM's screen remains black

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Just a few weeks ago, another fix for this issue was included there. It is a known issue for which there are already many "work arounds" there to attempt to still be compatible with a quite inadequate x86emu implementation included in older X11. (see "Subject: [SeaBIOS] [PATCH 0/3] Emulate "leal" instruction to workaround x86emu bugs" on the SEABIOS ML as the culminating patch series of the recently reported issue.

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