[?]Strange persistent artifact on screen with Knoppix 8.6 after "Suspend-Restart"s
Yes, friends, I know that I would immediately be advised to upgrade to the latest knoppix. But currently I have some additional packages installed as a persistent set up which would need time to be ported.
So please forgive me for my not being able to follow up on that advice presently.
Regarding the problem:
---------------------------------
For a long time, with 8.6.0, I have noticed that after a couple of system "Suspend"s and restarts an artifact appears, and remains persistently on the screen which is bothersome. It even appears on Screenshots. It is clearly because of a program, but I can't identify which.
When the system is restarted the artifact goes away, only to reappear after the same couple of Suspends-Restarts.
The relevant portions from hardinfo is:
-Display-
Resolution : 1366x768 pixels
Vendor : The X.Org Foundation
Version : 1.20.4
[...]
Monitor 0 : 1366x768 pixels
-OpenGL-
Vendor : Intel Open Source Technology Center
Renderer : Mesa DRI Intel(R) HD Graphics 520 (Skylake GT2) x86/MMX/SSE2
Version : 3.0 Mesa 19.2.1
Direct Rendering : Yes
[...]
-GPU Drawing-
Intel(R) Core(TM) i3-6006U CPU @ 2.00GHz 4x 2000.00 MHz 3481.93
A screenshot of the artifact is uploaded at my drive (since the image couldn't be uploaded/attached here) : https://drive.google.com/file/d/1ZtO...x-pKlSIR0RH-C/
Could I please be helped in removing this artifact from my screen over multiple "Suspend-Restart"s?
Reply to szzsqing1's post ...
Thank you, szzsqing1, for your informative post.Your sharing of your own experience really helped.
Quote:
Originally Posted by
szzsqing1
... I think that this problem does not occur in live mode, and, as you said, it is related to your persistent changes ....
I haven't checked, as I use persistent always. I will, in the coming days, and post my report.
Quote:
Originally Posted by
szzsqing1
... I remember that I had similar experiences, not after suspend, but in plain LXDE session: did not disappear the window size notification from the desktop...
In my case, the artifact appears after revival from Suspend.
Quote:
Originally Posted by
szzsqing1
... If I remember well, I resolved this by resizing again a window with mouse ...
I tried this, but can't seem to identify the window that is the mischief-maker.
Quote:
Originally Posted by
szzsqing1
... or logging out/in from X. .
Yes, this too works.
Quote:
Originally Posted by
szzsqing1
... But the latest is also problematic (at least in Knoppix 9.1 which I use), the implementation of logging out/in is buggy. If not a problem for you, you can use Gnome or KDE, or replace your persistent /home/knoppix directory with the live version one, of course in a live session (first save your important configuration dirs, files, and after replace them back)..
Thank goodness that I didn't upgrade to 9.1! But one note: I use an entire ext4 partition with persistent. I have an old post describing the steps. With a file knoppix-data.inf at the root of the partition, with the line having these entries:
Code:
(partitionNumber) /(where the data files are stored) (partition type)
Quote:
Originally Posted by
szzsqing1
... Maybe it helps if you use LXDE-Openbox session instead of LXDE-Compiz. Unfortunately in current Knoppix you have to use the buggy Compiz, cannot switch to LXDE-Openbox..
Ok. I will try. Actually, I haven't ever used openbox seriously, so I am not very comfortable with it. Will try. Knoppix has these options: kde|gnome|icewm|fluxbox|openbox|larswm|evilwm|twm.
I will also try with no3D.
Quote:
Originally Posted by
szzsqing1
... Or even better changing the default LXDE to LXQt, wich is activey maintained, or to Trinity desktop, wich has a lot of features, it is lightweight, and actively maintained, too.
I am not sure if Trinity or LXQt is at all in the Knoppix 8.6 DVD ISO. I will check.
Actually, I have a Debian environment installed, but I prefer using Knoppix, as I have been using it consistently for the last 14 years, from 5.something. I have wonderful memories with Knoppix and a few good friends, whom I don't find here any more.
In the end, thanks once more for replying to my post, sharing your experience. Much appreciated.
[Solved] persistent artefact on screen with Knoppix 8.6 after "Suspend-Restart"s
I solved the nagging issue on LXDE. It seems that after power ON from suspend, if the program drawing the window is identified, and the window frame is resized, the artefact vanishes. In many of the cases, pcmanfm creates the artefacts. The issue of artefact took much time to be solved. Perhaps my brain is showing me a sign of its ageing.
I offer my apologies for the typo, writing Artefact as Artifact. Overlooked it completely until now, even with spellchecker ON. Another sign!