Yes the screen will still light up if you disable the i915 kernel driver. But you're essentially using BIOS graphics then. You would lose:
* High resolution * Hardware acceleration * Multi-GPU support Basically graphical desktops won't work anymore, so you shouldn't disable the i915 kernel driver. Separately, as mentioned in bug 1964090 the old 'intel' Xorg driver is buggy and should be removed: sudo apt remove xserver-xorg-video-intel -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-5.8 in Ubuntu. https://bugs.launchpad.net/bugs/1964035 Title: no image on monitor on laptop with two graphics card (onboard intel+nvidia rtx3050) if run nvidia only Status in linux-hwe-5.13 package in Ubuntu: Opinion Status in linux-signed-hwe-5.8 package in Ubuntu: Opinion Status in nvidia-graphics-drivers-510 package in Ubuntu: Opinion Bug description: i have laptop (Vendor:MSI / Model:Katana GF76 11UC) with two graphics card (onboard intel+nvidia rtx3050) I didn't like how intel (i915) works (flickering problem has not yet been overcome) so I decided to try using nvidia only. I spent a long time dealing with the "xorg" settings in order to run "x" on nvidia only: * disable the i915 driver with kernel settings: `modprobe.blacklist=i915 i915.modeset=0` * rename /usr/share/X11/xorg.conf.d/20-intel.conf to *.bak * then modify /usr/share/X11/xorg.conf.d/10-nvidia.conf (set Identifier "Card0" ) after starting startx on the screen, the image freezes when switching to tty2 and back to tty1, the server does not render anything, and if you open `top` in tty2, you can see: ``` MiB Mem : 31808,1 total, 24998,2 free, 5471,6 used, 1338,3 buff/cache MiB Swap: 954,0 total, 954,0 free, 0,0 used. 25914,7 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2547 root 20 0 2880328 156160 86076 R 100,3 0,5 6:19.96 kwin_x11 3033 hetman 20 0 3052116 350728 186196 S 1,0 1,1 0:06.43 firefox 3314 hetman 20 0 2477080 140688 93056 S 1,0 0,4 0:01.23 Isolated Web Co 306 root 20 0 0 0 0 I 0,3 0,0 0:00.36 kworker/6:2-events 776 message+ 20 0 9044 6032 3828 S 0,3 0,0 0:01.62 dbus-daemon 801 root 20 0 16852 7828 6892 S 0,3 0,0 0:00.17 systemd-logind 2967 hetman 20 0 5771360 4,4g 124548 S 0,3 14,1 2:04.60 plasmashell 3000 hetman 20 0 340504 63760 50732 S 0,3 0,2 0:00.37 kwalletd5 3207 hetman 20 0 2427008 110324 89080 S 0,3 0,3 0:00.30 Privileged Cont 3607 root 20 0 0 0 0 I 0,3 0,0 0:00.03 kworker/u24:2-events_power_efficient ``` nvidia-smi ``` hetman@katana-lin:/mnt/giga/xorg_nvidia$ cat mvidia-smi.log Mon Mar 7 23:03:53 2022 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 510.47.03 Driver Version: 510.47.03 CUDA Version: 11.6 | |-------------------------------+----------------------+----------------------+ | GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |===============================+======================+======================| | 0 NVIDIA GeForce ... Off | 00000000:01:00.0 Off | N/A | | N/A 41C P8 N/A / N/A | 132MiB / 4096MiB | 0% Default | | | | N/A | +-------------------------------+----------------------+----------------------+ +-----------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=============================================================================| | 0 N/A N/A 2847 G /usr/lib/xorg/Xorg 12MiB | | 0 N/A N/A 2967 G /usr/bin/plasmashell 8MiB | | 0 N/A N/A 3033 G /usr/lib/firefox/firefox 85MiB | | 0 N/A N/A 4436 G ...bexec/kscreenlocker_greet 12MiB | +-----------------------------------------------------------------------------+ ``` Thus, I stated that the X's started up and are working, but the image is not displayed. if return modprobe i915.modeset=1 /usr/share/X11/xorg.conf.d/20-intel.conf /usr/share/X11/xorg.conf.d/10-nvidia.conf - otherwise the output always goes through only intel (i915) nvidia not uses even if use `prime-select nvidia` - this option ignoring ----- Description: Ubuntu 20.04.4 LTS Release: 20.04 nvidia-driver-510: Installed: 510.47.03-0ubuntu0.20.04.1 Candidate: 510.47.03-0ubuntu0.20.04.1 Version table: *** 510.47.03-0ubuntu0.20.04.1 500 500 http://by.archive.ubuntu.com/ubuntu focal-updates/restricted amd64 Packages 500 http://security.ubuntu.com/ubuntu focal-security/restricted amd64 Packages 100 /var/lib/dpkg/status hetman@katana-lin:/mnt/giga/xorg_ hetman@katana-lin:~$ hwinfo --gfxcard 16: PCI 100.0: 0302 3D controller [Created at pci.386] Unique ID: VCu0.AC6K6Gkky5B Parent ID: vSkL.7WoufefUDA8 SysFS ID: /devices/pci0000:00/0000:00:01.0/0000:01:00.0 SysFS BusID: 0000:01:00.0 Hardware Class: graphics card Model: "nVidia 3D controller" Vendor: pci 0x10de "nVidia Corporation" Device: pci 0x25a2 SubVendor: pci 0x1462 "Micro-Star International Co., Ltd. [MSI]" SubDevice: pci 0x12eb Revision: 0xa1 Driver: "nvidia" Driver Modules: "nvidia" Memory Range: 0x81000000-0x81ffffff (rw,non-prefetchable) Memory Range: 0x6000000000-0x60ffffffff (ro,non-prefetchable) Memory Range: 0x6100000000-0x6101ffffff (ro,non-prefetchable) I/O Ports: 0x4000-0x407f (rw) Memory Range: 0x82000000-0x8207ffff (ro,non-prefetchable,disabled) IRQ: 139 (920082 events) Module Alias: "pci:v000010DEd000025A2sv00001462sd000012EBbc03sc02i00" Driver Info #0: Driver Status: nvidiafb is not active Driver Activation Cmd: "modprobe nvidiafb" Driver Info #1: Driver Status: nouveau is not active Driver Activation Cmd: "modprobe nouveau" Driver Info #2: Driver Status: nvidia_drm is active Driver Activation Cmd: "modprobe nvidia_drm" Driver Info #3: Driver Status: nvidia is active Driver Activation Cmd: "modprobe nvidia" Config Status: cfg=new, avail=yes, need=no, active=unknown Attached to: #12 (PCI bridge) 24: PCI 02.0: 0300 VGA compatible controller (VGA) [Created at pci.386] Unique ID: _Znp.3c68NaQru6A SysFS ID: /devices/pci0000:00/0000:00:02.0 SysFS BusID: 0000:00:02.0 Hardware Class: graphics card Device Name: "Onboard - Video" Model: "Intel VGA compatible controller" Vendor: pci 0x8086 "Intel Corporation" Device: pci 0x9a68 SubVendor: pci 0x1462 "Micro-Star International Co., Ltd. [MSI]" SubDevice: pci 0x12eb Revision: 0x01 Driver: "i915" Driver Modules: "i915" Memory Range: 0x6102000000-0x6102ffffff (rw,non-prefetchable) Memory Range: 0x4000000000-0x400fffffff (ro,non-prefetchable) I/O Ports: 0x5000-0x503f (rw) Memory Range: 0x000c0000-0x000dffff (rw,non-prefetchable,disabled) IRQ: 157 (10681 events) Module Alias: "pci:v00008086d00009A68sv00001462sd000012EBbc03sc00i00" Driver Info #0: Driver Status: i915 is active Driver Activation Cmd: "modprobe i915" Config Status: cfg=new, avail=yes, need=no, active=unknown Primary display adapter: #24 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.13/+bug/1964035/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
