[SOLVED] Second monitor flickering

Bloectasy · 2023-03-19 21:32:24

Hello peeps. again.

After using my desktop for a little while my second monitor starts turning off and on and after monitoring my GPU (NVIDIA 1660 super) usage for a while this tends to happen after its utilization reaches over 40%ish, but its not always the factor.

I have tried looking at the Xorg logs but i can't seem to find any information why this occurs. Xorg.log file
And this is my xrand --verbose output http://0x0.st/H-wB.txt.

Last edited by Bloectasy (2023-03-20 21:48:46)

Xyne · 2023-03-19 22:05:14

Check the output of the following commands for warnings and errors:

sudo dmesg -l warn
sudo journalctl -b -p 4

Bloectasy · 2023-03-19 22:28:15

I don't really get it the only errors i see is that the monitors fail to register on boot up and a kwinscript err.
dmesg output: http://0x0.st/H-xs.txt
journalctl output: http://0x0.st/H-x-.txt

seth · 2023-03-20 09:46:09

Is this actually any different from https://bbs.archlinux.org/viewtopic.php?id=284391 (but for "After using my desktop for a little while")?

Bloectasy · 2023-03-20 10:07:18

No that was a problem with the refresh rate and that was happening to the main monitor which was connected via a DP (and was not disconnecting the display just black bars) while this is the second monitor which is connected via a HDMI (and this the time the monitor completely disconnects and reconnects as seen in the Xorg.logs). And that problem was fixed by downloading the proper drivers for the graphics card.

Last edited by Bloectasy (2023-03-20 10:20:29)

seth · 2023-03-20 13:33:03

Does the problem also exist while the DP monitor is disconnected?

Bloectasy · 2023-03-20 14:18:48

Yes this does indeed happen with the DP monitor pluged out.

seth · 2023-03-20 15:20:13

Does it happen if you drive the HDMI output at lower resolutions (1024x768)?

Bloectasy · 2023-03-20 15:46:36

No after testing it for about 20 minutes it doesn't happen (on constant 50% usage). But again even when its on native resolution 1920x1080 for like 20 minutes on constant 55% usage it doesn't turn it off. So the GPU usage is not really the factor.

Last edited by Bloectasy (2023-03-20 15:51:32)

seth · 2023-03-20 15:52:49

No, but maybe the signal rate.
Do you have a spare cable?

Bloectasy · 2023-03-20 15:55:31

I have tried 3 cables (DP cables and active HDMI converters) so far, but the monitor is initially connected via DP to have the capability of 144hz but is then converted to an active HDMI port so i can plug it in my graphics card as it doesn't have 2 DPs.

Last edited by Bloectasy (2023-03-20 15:58:32)

seth · 2023-03-20 16:13:12

You mean there's a HDMI -> DP converter in use?
The monitor has no direct HDMI input?

Bloectasy · 2023-03-20 16:17:34

Vice versa DP to HDMI. The monitor does indeed have direct HDMI port but only supports high refresh rate via the DP.

Last edited by Bloectasy (2023-03-20 16:18:02)

seth · 2023-03-20 16:23:28

So you're trying to drive this monitor at 144Hz by connecting the hdmi output of the GPU w/ the DP input of the monitor through a converter?
Does the problem exist if you run the output at 1080p but @60Hz? 100Hz? 120Hz?

Bloectasy · 2023-03-20 16:41:57

Yes the only way i can use the monitor at a higher refresh rate with this GPU as it lacks ports, and yes it does not occur on 60Hz. The cables should be fine as it has worked just fine on another operative system aka Windows for the past 2 years.

Last edited by Bloectasy (2023-03-20 17:03:36)

Bloectasy · 2023-03-20 17:06:22

I have found this issue posted on the nvidia forums just now https://forums.developer.nvidia.com/t/5 … /242488/10 and probably seems to be a problem with the latest drivers. Ill try that, but have to research on how to downgrade pacman packages first.

Bloectasy · 2023-03-20 17:35:41

The driver downgrade doesn't seem to work.

seth · 2023-03-20 17:55:19

Please don't paraphrase, https://bbs.archlinux.org/viewtopic.php?id=57855

You cannot just downgrade the nvidia package but will have to install the linux-headers package for your kernel and switch to the desired version of some nvidia-dkms package.

Though

yes it does not occur on 60Hz

I don't expect that to help you.
What about 100Hz & 120 Hz?

Bloectasy · 2023-03-20 21:47:48

Lowering the secondary monitor to 120Hz fixes it. And i guess its not something we can solve as it has been reported to NVIDIA already, so I'm just going to mark this thread as solved.

Last edited by Bloectasy (2023-03-20 21:50:52)

seth · 2023-03-21 07:45:48

Did the driver downgrade confirm it's that issue?

Bloectasy · 2023-03-21 19:13:06

No, the driver downgrade with doing all the linux-headers stuff does not fix the issue as said in the previous reply of mine lowering the refresh rate to 120Hz fixes it.

seth · 2023-03-21 20:16:08

I wasn't sure whether "The driver downgrade doesn't seem to work." was meant to say "doesn't solve the problem" or "couldn't functionally downgrade the driver", but the implication then is that it's not the nvidia bug, but likely the converter - and that you may not effectively have used 144Hz on windows.

Otherwise you want to check what modeline was actually used on windows (and simply add that)
https://wiki.archlinux.org/title/Xrandr … esolutions

Arch Linux

#1 2023-03-19 21:32:24

[SOLVED] Second monitor flickering

#2 2023-03-19 22:05:14

Re: [SOLVED] Second monitor flickering

#3 2023-03-19 22:28:15

Re: [SOLVED] Second monitor flickering

#4 2023-03-20 09:46:09

Re: [SOLVED] Second monitor flickering

#5 2023-03-20 10:07:18

Re: [SOLVED] Second monitor flickering

#6 2023-03-20 13:33:03

Re: [SOLVED] Second monitor flickering

#7 2023-03-20 14:18:48

Re: [SOLVED] Second monitor flickering

#8 2023-03-20 15:20:13

Re: [SOLVED] Second monitor flickering

#9 2023-03-20 15:46:36

Re: [SOLVED] Second monitor flickering

#10 2023-03-20 15:52:49

Re: [SOLVED] Second monitor flickering

#11 2023-03-20 15:55:31

Re: [SOLVED] Second monitor flickering

#12 2023-03-20 16:13:12

Re: [SOLVED] Second monitor flickering

#13 2023-03-20 16:17:34

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#14 2023-03-20 16:23:28

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#15 2023-03-20 16:41:57

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#16 2023-03-20 17:06:22

Re: [SOLVED] Second monitor flickering

#17 2023-03-20 17:35:41

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#18 2023-03-20 17:55:19

Re: [SOLVED] Second monitor flickering

#19 2023-03-20 21:47:48

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#20 2023-03-21 07:45:48

Re: [SOLVED] Second monitor flickering

#21 2023-03-21 19:13:06

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#22 2023-03-21 20:16:08

Re: [SOLVED] Second monitor flickering

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