I have the same Lenovo model (Legion 5 Pro 16IAH7H) as well, with Ubuntu 24.10,
Kernel 6.11.0-13-generic, nvidia-driver-560 and BIOS J2CN57WW and see similar
issues:
- With "dynamic" graphics set in BIOS, the HDMI port does not work, displays
connected to USB-C/Thunderbolt work. dmesg logs same
Sorry but now I use a new classical Intel-only laptop so I cannot help
anymore.
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https://bugs.launchpad.net/bugs/2033735
Title:
No HDMI in Nvidia on-demand mode
Status in
I have the exact same Lenovo model, with the same BIOS version.
Tested on Ubuntu 23.10 with kernel 6.6.6, with nvidia driver version
545.29.06 (both the proprietary and open modules), on Wayland and X,
using HDMI or DP.
When "on-demand", there is no HDMI and no option to launch with dGPU. I
do ge
6.6 rc4 does not solve the issue.
Daniel, you told me here that some error messages in Mantic's 6.5 kernel were
unrelated.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2033735/comments/39
But in (last *working* kernel) 6.4.16, I do not get these messages:
15:55:15 nvidia-settings: PRIME
Dynamic graphics (Intel+Nvidia), Nvidia 535 latest, Nvidia performance mode in
prime
does not show two monitors connected to an usb-c dock.
I wrote here that it was working with a simple hdmi, to be confirmed.
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>From same source:
6.5 rc1 does not boot (hang during boot)
6.5 rc2 does boot but does *not* have hdmi + dGPU working
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Title:
No HDM
I tested with 6.4.16 from Ubuntu kernel PPA and I get HDMI + dGPU app
launch working.
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Title:
No HDMI in Nvidia on-demand mode
Stat
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-graphics-drivers-535 (Ubuntu)
Status: New => Confirmed
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If I had to do some intuitively guess, I would think to a power management
issue.
Maybe a kernel 6.4 or 6.5 pm refinement?
I know we cannot guess...
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If I choose:
- in BIOS: dynamic graphics (the system sees both gpus)
- in Ubuntu / Nvidia control panel /Prime profiles: perfomance mode
then I can use my system (hdmi works, launch with dedicated gpu app menu option
is here).
I can see in g-c-c System details that both gpu are detected.
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I tried today (dynamic graphics in bios, = on-demand) with an USB key
containing the latest Mantic install and same issue.
So that's not my config/system fault.
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Yes, the main bug is active for nvidia 535 and nouveau.
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https://bugs.launchpad.net/bugs/2033735
Title:
No HDMI in Nvidia on-demand mode
Status in linux package in Ubuntu:
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