Hello David, Am 15.11.2016 um 15:57 schrieb David Herrmann: > On Fri, Oct 28, 2016 at 2:24 PM, Philipp Hahn <h...@univention.de> wrote: >> while experimenting with UEFI and secure-boot I stumbled into the issue >> "cirrusdrmfb broken with simplefb" associated with your name: >> <https://groups.google.com/forum/#!msg/linux.kernel/tD2UEqra-wU/u6NkZY8o5YEJ> >> >> I'm using a Debian based linux-4.1.38 kernel, which has >>> # zgrep -E 'CONFIG_X86_SYSFB|CONFIG_FB_SIMPLE' /boot/config-`uname -r` >>> CONFIG_X86_SYSFB=y >>> CONFIG_FB_SIMPLE=y >> >> I found that SUSE bug >> <https://bugzilla.novell.com/show_bug.cgi?id=855821>, where Takashi Iwai >> finally disabled those options. >> >> I also checked Debians latest linux-4.7 kernel in Debian-sid, which >> still has this setting. So my questions are: >> 1, should Debian disable those options for x86? >> 2. What would Debian loose? >> 3. or is that issue fixed otherwise in newer kernels? > > Right now CONFIG_X86_SYSFB should remain disabled. Once the SimpleDRM > driver is upstream, there will be infrastructure to do the hw > handover. Right now, it breaks if you hand over hw from one driver to > another.
@David: Thank you for your feedback. @Debian: Please disable CONFIG_X86_SYSFB in Debian for all next builds - maybe except arch=arm. Philipp Hahn
