Hello! After lots of lurking for a couple of years now, I’ve now decided to join in on some discussions. I have a problem that has been driving me nuts recently (it’s always been a problem, just that I can’t tolerate it anymore). Was wondering if anyone here had any thoughts, or a solution to this.
I have a w5-3535x + Arc A770 combo - it’s my main work computer running Ubuntu 24.04.2.
When I turn off my monitor a Dell 6K, for long periods of time, it doesn’t seem to turn back on and output any video after turning back on. The computer is definitely on, and I see keyboard and mouse lights…
The monitor is connected to the Arc A770 using DP, but the connection to the monitor on the other side is mini DP. So I am not sure if that has any influence. I’m using GNOME and Wayland if that helps, and I have disabled Screen Blanking and Automatic Suspend!
It’s so frustrating that I often have to hard shutdown my computer and get comfy with my workspace again.
Can you post the exact Dell model? I have a decent amount experience of banging my head against the wall with their products from when I worked desktop support.
I’d also consider replacing the DP cable. 8.5/10 they are the root cause of display issues. Especially if it’s a Dell OEM cable.
Welcome to the forums!
I had a similar issue with Debian 12 a while back, when waking from sleep the monitor would wake up but stayed dark.
But, the display would light on if I pressed any key a second time (didn’t have to do that before, suddenly it just decided to behave that way).
Since you got an Arc, it could be the drivers.
Try a newer kernel for the heck of it.
Bummer if that were the case. I don’t want to have to fiddle with kernel that much. I was thinking 6.11 would be new enough for Arc A770 by now. It is an older GPU at this point.
For sure though, my computer isn’t coming from sleep at all. I disable all power management in that way because I was hoping that would be the case that it had something to do with that, but not.
Yeah no idea what the issue was, didn’t bother with troubleshooting as I wanted to jump back to Tumbleweed anyway to check out the new nt sync feature, and after hopping the issue was gone.
Club 3D generally makes very high quality cables, but doesn’t mean they will be error free.
Does not always mean quality or there isn’t a firmware problem. I would recommend trying to change the Display Port standard the monitor is using, if possible, to DP 1.2 to DP 1.4 etc.
Though it’s a windows exe file… so not sure how well process for installing it via linux will work. Beyond that very well could be OS/Driver level bug. There are some odd Intel Arc ones hanging around Linux probably. Very well could be worth jumping to kernel 6.12. I’d just make a prior to making the jump.
Thanks, I tried different cables, and still no-go.
I did notice a DDC/CI option on the monitor. That’s about as close as I can find to something that could cause some software wackiness. I’ll try messing with that…
I’ve had long monitor wake-ups when using HDMI displays behind a USB-C dock (I guess DP alt mode), vs quick/near-instant with just HDMI to the laptop direct.