Public bug reported:
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
** Affects: linux-signed-hwe-5.8 (Ubuntu)
Importance: Undecided
Status: New
** Tags: hybrid-graphics nvidia xorg
** Attachment added: "90-xorg.conf"
https://bugs.launchpad.net/bugs/1964035/+attachment/5566658/+files/90-xorg.conf
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to 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
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