On Mon, Mar 18, 2019 at 05:09:31AM +0700, Eugene Grosbein wrote: > 18.03.2019 0:34, Konstantin Belousov wrote: > > > Can anybody provide an example of machine where the flag is set but VGA > > works ? For me, it is set on headless NUC when there is no monitor > > attached, and then BIOS does not configure framebuffer at all. > > http://freebsd.1045724.x6.nabble.com/vt-4-related-hang-of-11-2-td6299125.html > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=230172 > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=229235 All of them are about Silvermont/Airmont atoms which probably share reference Intel BIOS code.
As I noted above, BIOS on mine machine is somewhat smarter, it reports NO_VGA only if the display was not connected on boot. > > > > So the proposal is about reversing the set of broken machines, but only > > in installer ? In other words, if it worked for installer, the installed > > system would be broken (again) ? > > VGA-based installation session won't event start unless this is fixed. > > It should be easy to make installer generate the knob for target machine > if installer sees wrong ACPI flag with working VGA hardware. Until installer generates such knob, it is out of question to make the config of the kernel booted from the installation media different from the config of the installed system. That said, did anybody considered ignoring NO_VGA FACP flag on Silvermonts only ? Or even better, gather SMBIOS identifications for affected BIOSes and ignore the flag for them ? _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
