On Sat, Aug 16, 2014 at 7:21 PM, Bruno Prémont bonbons@linux-vserver.org wrote:
This series improves on commit 20cde694027e (x86, ia64: Move EFI_FB vga_default_device() initialization to pci_vga_fixup()):
- cleanup remaining but always-true #ifndefs
- fix boot regression on dual-GPU Macs
Andreas, can you please test this series? It is a modification from previous testing patch that should still work fine for you. That testing patch would have been failing X startup on old BIOS systems booted with vga=normal (or otherwise in VGA text mode).
Greg, in case you have scheduled above-mentioned commit for your next stable iteration, please hold it back in the queue until this follow-up has landed and can be included within the same stable update as alone that patch regresses for Macs with dual-GPU and using efifb.
Bruno
Fails again (with and without efifb).
The vga_set_default_device in vga_arbiter_add_pci_device is at fault. It sets the boot video device to intel. Removing it makes the system bootable again.