On 11 March 2017 at 23:51, Samuel Holland <sam...@sholland.org> wrote:
> On 03/11/17 07:24, Patrick O'Callaghan wrote: > >> GRUB_CMDLINE_LINUX="rd.blacklist=nvidia rd.blacklist=nouveau >> intel_iommu=on iommu=pt rd.driver.pre=vfio-pci >> vconsole.font=latarcyrheb-sun16 $([ -x /usr/sbin/rhcrashkernel-param >> ] && /usr/sbin/rhcrashkernel-param || :) rhgb quiet resume=U >> UID=1431e6d2-531e-46cd-8633-1cf878c6b2a1" audit=0 >> >> (Note that I have the Nvidia proprietary driver so need to mask that >> as well as Nouveau). >> > > rd.* options only matter inside the initramfs. Once your root filesystem > is mounted and udev is restarted, it will pick up the nvidia drivers > at that point. You need to mask nvidia and nouveau both in the initramfs > and once the system is booted. > > Change rd.blacklist to modprobe.blacklist, and regenerate your GRUB config. > > On 03/11/17 15:54, Patrick O'Callaghan wrote: > >> On 11 March 2017 at 21:26, wiwitop wiwitop wrote: >> >>> Hi. You should try with the real ids of your gpu. The trick didn't >>> work with my AMD GPU, perhaps it's the same for you. >>> >> I'm not sure what you mean by "real ids". How is this different from >> what I'm doing? >> > > Specify the PCI IDs (vendor and product) as they appear in lspci -nn, > not with the really long string (replacing with the correct product > numbers for your card, of course): > > options vfio-pci ids=10de:abcd,10de:1234 > > Then be sure to regenerate your initramfs. > > Well, I did all that but no joy. To be exact: GRUB_CMDLINE_LINUX="modprobe.blacklist=nvidia modprobe.blacklist=nouveau rd.blacklist=nvidia rd.blacklist=nouveau intel_iommu=on iommu=pt rd.driver.pre=vfio-pci vconsole.font=latarcyrheb-sun16 $([ -x /usr/sbin/rhcrashkernel-param ] && /u sr/sbin/rhcrashkernel-param || :) rhgb quiet resume=UUID=1431e6d2-531e-46cd-8633-1cf878c6b2a1" audit=0 $ cat /etc/modprobe.d/vfio.conf (renamed from local.conf) options vfio-pci ids=10de:0f00,10de:0bea $ cat /etc/dracut.conf.d/local.conf force_drivers+="vfio vfio_iommu_type1 vfio_pci vfio_virqfd" (the man page says force_drivers will preload these, rather than the add_drivers command which just appends them; at least that's how I read it). and of course 'dracut -f --kver `uname -r`' and 'grub2-mkconfig -o /etc/grub2.cfg' After the reboot menu the DVI output (from the Nvidia card) has a signal but no content after the initial booting messages, while the HDMI output (internal GPU) has no signal. poc
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