Hi Thierry,
>From memory I did set "on demand" mode and it worked correctly.
Now it is a strange situation, kernel 5.4.0-28 is the latest that boots
correctly in my setup if only built in screen (on later versions, it hangs
shortly after Linux boot started, Lenovo sign still there and progress
Hi,
I have a very similar problem and noticed the following:
My external display is working with Nvidia "Performance Mode" only. In
"On-demand" mode, I have a black screen that it is not detected in Ubuntu
system settings, although it is detected by Nvidia X Server Settings.
As if we needed a
** Package changed: linux (Ubuntu) => nvidia-prime (Ubuntu)
** Changed in: nvidia-prime (Ubuntu)
Status: Incomplete => Won't Fix
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Hi,
No, I am ok with this constraint (no secure boot if HDMI needed).
Thank you,
Igor
pet, 15. svi 2020. u 08:30 Daniel van Vugt
napisao je:
> It sounds like you just needed to figure out how to enable both GPUs
> simultaneously... Is there any problem left to solve now?
>
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> You received
It sounds like you just needed to figure out how to enable both GPUs
simultaneously... Is there any problem left to solve now?
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Title:
[Lenovo
Hi Daniel,
I found workaround.
Discrete graphics in BIOS didn't have impact in my case.
I didn't work with built-in (Intel) only graphics.
Needed "nvidia" or "on-demand" (ex: /usr/bin/prime-select on-demand)
Disabling Secure Boot was required to make it work.
Thank you,
Igor
sri, 13. svi 2020.
Oh, did you accidentally turn off the integrated Intel GPU when you
enabled Nvidia? We need both turned on at the same time. Check your
BIOS.
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It appears Xorg is not working at all now, like the Nvidia driver isn't
installed properly.
Please start by running:
lspci -k > lspcik.txt
and send us the resulting text file, so we can verify the kernel is OK
now.
Then try:
1. Uninstall the Nvidia driver.
2. Reboot.
3. Find any
Hi Daniel,
I did the changes in 'Additional Drivers' + reboot.
I attached journal.
Thank you,
Igor
uto, 12. svi 2020. u 10:31 Daniel van Vugt
napisao je:
> Or uninstall it, and reinstall it.
>
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> report.
>
Thanks! It exists!
01:00.0 VGA compatible controller: NVIDIA Corporation TU117GLM [Quadro T1000
Mobile] (rev a1)
Subsystem: Lenovo TU117GLM [Quadro T1000 Mobile]
Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia
But nouveau doesn't seem to support it. So please now install
Or uninstall it, and reinstall it.
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Title:
[Lenovo ThinkPad P1 Gen 2] HDMI port can't be found
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Hi Daniel,
I changed discrete GPU to enabled.
Please find attached file for requested details.
Thank you,
Igor
** Attachment added: "xrandr + lspcik + journal -b"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1871573/+attachment/5370216/+files/external-hdmi.tgz
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Igor, please check the system BIOS to ensure the discrete GPU is
enabled.
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Title:
[Lenovo ThinkPad P1 Gen 2] HDMI port can't be found
To manage
See comment #6, which is also based on:
https://psref.lenovo.com/syspool/Sys/PDF/ThinkPad/ThinkPad_P1_2nd_Gen/ThinkPad_P1_2nd_Gen_Spec.PDF
Yeah it's possible there is no Nvidia GPU, although comment #10 also
suggests there is one. Just seems the more likely explanation right now.
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I don't find Nvidia card in lspci. Are we sure there's an Nvidia card in
the system?
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Title:
[Lenovo ThinkPad P1 Gen 2] HDMI port can't be found
After installing nvidia-driver-440, please reboot and then run:
xrandr > xrandr.txt
lspci -k > lspcik.txt
journalctl -b0 > journal.txt
and attach the resulting text files here.
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Hi,
Actually I have worked with Intel driver.
Does that mean that Intel can not display to external display ? (I use it
as it seems to use less energy than nvidia)
Now I have switched to nvidia with nvidia-settings (to Performance mode)
Rebooted + drm.debug=0x04
Still no picture on external
Igor, please open the app 'Additional Drivers' and use that to install
the Nvidia driver. Then reboot and tell us if the problem persists.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Error in log:
nvidia-settings-autostart.desktop[2939]: ERROR: NVIDIA driver is not loaded
nvidia-drivers-440 should be installed to support external display
output.
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Hi,
I have tried adding drm.debug=0x04 and connecting to HDMI.
Log is in the attachment.
Thank you and regards,
Igor
** Attachment added: "drm.debug loh"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1871573/+attachment/5369517/+files/drm.debug.hdmi.log
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