On Fri, 17 Jul 2020 16:45:33 +0000 rbraun204 <rbraun...@gmail.com> wrote:
> Hey all, i'm installing stretch onto a HP Z4G4 workstation via > netboot and in uefi mode. The only video hardware in the box is a > NVIDIA Corporation GP107GL [Quadro P620]. The install goes as > expected. Only installed standard utils and ssh server. > > On first boot grub comes up and boots into the default entry, the > only text after on the screen is the loading linux/initrd echo entries > from grub. Thought it was frozen, but noticed my dhcp service got a > req from the box and sure enough i can ssh in and the machine is up > and running, just no output to the monitor. Still just the grub > statements up on the screen. > > running hwinfo --framebuffer results in no output. > > efifb appears to get loaded and has grubs resolution > [ 1.451694] efifb: probing for efifb > [ 1.451712] efifb: framebuffer at 0xe0000000, using 8640k, total 8640k > [ 1.451712] efifb: mode is 1920x1080x32, linelength=8192, pages=1 > [ 1.451713] efifb: scrolling: redraw > [ 1.451713] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > [ 1.484650] fb0: EFI VGA frame buffer device > > > installed the latest kernel from stretch-backports, reboot. Same > behavior as above. > > Installed nvidia-driver (proper for this gpu), reboot. Same behavior as > above. > > Upgraded to nvidia-driver from backports, reboot. Same behavior as above. > > Install some desktop environment, reboot. system boots into X no > issues. Try a ctrl-alt-f1 to drop to console and monitor shuts off > reporting no video output. ctrl-alt-f7 brings video and monitor back > online. > > Moved on to trying to massage /etc/default/grub and setting > GRUB_GFXMODE and GRUB_GFXPAYLOAD_LINUX. And can make grub look pretty > at 1920x1080 or any resolution if I want. It appears grub is passing > the video resolution properly to the kernel as I can see in dmesg when > efifb is loaded the resolution it's looking to set is the value of > GRUB_GFXMODE. For shits and giggles tried setting gfxmode to 1024x768 > and still no dice. > > Tried booting into the grub commandline to verify video modes. Sure > enough grub reports efi GOP driver and 1920x1080x32 as a valid mode. > > Anyone have any ideas? > > Thanks > > Ryan > Hi Ryan, Check if your video card needs a firmware. Also check if it needs a kernel module. Regards, Marko
