I have an external monitor connected to my Advanced Optimus laptop.
The cable connecting the monitor and laptop is confirmed to be HDMI 2.1
The dGPU on the laptop is an nVidia 4090 laptop edition.
When this monitor is configured for an update rate of 30Hz, it wakes up normally from powersave. When higher display update rates are selected, it looks like the monitor is waking up, but it claims that there is no signal present and goes back to sleep.
A second or so later, the monitor looks like it wants to wake up again, but then goes to sleep.
This seems to be related to the version of the nvidia drivers installed on my system.
I see the issue with version 565.77, and when trying an older version of the driver, 550.147, the issue is gone.
One more data point to this bug is that when I use a USB-C to DisplayPort cable, this bug is still present on the latest released drivers, but not on 550.147
Since the last NVIDIA update with the new option for GAMES or Graphic Design ect… Same thing here. Gotta roll back or totally uninstall NVIDA drivers for my screen to work properly. Been waiting over a month for it to be fixed but still, No New Updates out. This is bad on their part.
I am not alone!!!
Probably should not be happy about this, but at the very least it means that this bug is reproducable on other computers. I am now running a single screen, so this bug is not affecting me at the moment. In a couple of months when I return home, I will have to downgrade my nvidia drivers again.
I observe the same thing, plugging from a 5080 on a 4K Samsung TV via HDMI (60Hz). Have you tried however to use CTRL+ALT+Fn2/3/4 to switch to console?
I use SDDM and this used to wake the TV/monitor. However I recently made SDDM run over Wayland, and this fails now (I use CompositorCommand=kwin_wayland --drm --no-lockscreen --no-global-shortcuts --locale1, maybe this is what causes it). I will do further experiments to reproduce.
I can confirm that if I run SDDM on X11, then I can use CTRL+ALT+Fn to switch to console (then back to desktop, Plasma compositor in Wayland) and go back from powersave. If I run SDDM on Wayland then I cannot do this, even without specifying a CompositorCommand.
EDIT: Actually it finally wakes up, switching to a TTY, but it takes many minutes.
The SDDM issue above may be related to some other bug in kwin_wayland or something else. That said I cannot wake up the screen with the mouse, which I could before upgrading to a 5080. Need to use SDDM on X11 and switch to a console before switching back to Plasma.
The easiest workaround I found is to just leave the external display at 30Hz. If I do forget to switch it, then I have to open display properties on the panel, set it to 30Hz to get the display to switch on, and then I can use the higher frequencies again.
Apologies for the delay. We have filed an internal bug for tracking - #5178214.
Do you mind verifying that this remains an issue on our latest driver 570.133.07 available here - Driver Details | NVIDIA
If it continues to be an issue on 570.133.07, please capture a new NVIDIA bug report after you reproduce the issue. I have added the older bug report and your journal logs to the bug for Engineering review.
Can you please provide the EDID for the external monitor. The steps to capture it are available here - Managing a Display EDID on Linux | NVIDIA. Please attach the EDID saved in binary format.
Hi @ericgirard73 , Sorry for missing this report. Can you please capture a NVIDIA bug report so that we can confirm its the same issue as evortster’s report. Are you using the same BenQ EX3210U display?
I can confirm that this issue is still present on the latest beta drivers.
The output of nvidia-bug-report.sh and the edid for the monitor is attached.
I will many thanks. Thing is I do not see these kwin_wayland_drm errors in journalctl, does it require more verbosity? Will try with the new driver on Arch Linux and report back.
Hi @abchauhan Thanks for checking it out. I think there is some progress, I am now able to switch to TTY console, but it may take a few minutes before it shows on the screen. I am unsure if pressing CTRL+ALT+Fn 3 works better when screen is on or off though. I will investigate more and report.
Hi
I’ve been trying for 30 min to find that bug report and I can’t and when I run the script it says that it need to be unblocked from my nvidia settings and I can’t find at all where to go. Using web directions is not even helping. So, I’m stock, sorry!
Hi there!
I managed to sort this issue on my setup by upgrading the firmware of my external monitor.
It is a Benq EX3210U, and it’s firmware went from V3 to V17. Along with fixing this issue, it also enabled 144Hz through the normal HDMI connector, which is nice.
For me, this issue is now completely fixed.
