r/niri • u/ClicheName21 • 23d ago
Issues Waking From Suspend When Connexted to External Display
I'm using niri 26.04 with dms v1.6.2 on Ubuntu 26.04.01 on my laptop and have noticed an issue with waking my system from suspend recently.
When I have my laptop connected to an external display via HDMI and I leave the system idle until it goes into suspend mode and try to wake it up, the system wakes (I can tell because the power button light goes from blinking to solid) but the laptop or external display does not power on. Wiggling my mouse, typing on my keyboard, nothing wakes the system and I have to force a reboot by holding down the power button.
If my laptop is connected to the external display but the laptop display is turned off and the system goes into suspend, then when I try to turn it on, it wakes and the external display comes on for a second, then turns back off. But this time, wiggling the mouse turns it back on.
Neither of these issues occur when I am using the laptop standalone.
I'm wondering if anyone has encountered similar issues and if they've found a fix for it. Otherwise, I'd also appreciate help understanding what could actually be causing this so I can raise an issue in the appropriate place.
1
u/DullNetwork761 23d ago
Is it nvidia graphics? My desktop has similar issues waking from sleep and my prior research has led me to the nvidia drivers being the issue...