Well, I made the mistake of tinkering with the Monitor & Display settings in the Control Center on my other machine, expecting that the 'Test Settings' button would work like the 'Test' button in the Configure Desktop => Screen Saver does, but no; 'Test Settings' seems to have stored its settings somewhere, there is no evident way to revert the display, and further tinkering has now the monitor is totally unreadable. (I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Fortunately, I can ssh into the broken machine from this one, but I have no idea where Monitor & Display stores its misconfiguration files.
Does someone know where they would be? I see /etc/trinity/tdedisplay/tdedisplayconfigrc, but it doesn't seem like it would have the effects I'm seeing:
| @14:04:11 leslie@─►chestnut◄─ | wd=/home/leslie | $ less /etc/trinity/tdedisplay/tdedisplayconfigrc | EnableAutoStartProfile=false | EnableDisplayControl=false | StartupProfileName= | rc=0
OTOH, on this machine, /etc/trinity/tdedisplay/ is empty,
| @14:02:05 leslie@pinto | wd=/home/leslie | $ ls -l /etc/trinity/tdedisplay/ | total 0 | rc=0
so maybe just removing that config file will fix it?
Leslie
On Sat August 23 2025 12:15:41 J Leslie Turriff via tde-users wrote:
(I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Our phones are automatically backed up to our laptops using syncthing. (And our laptops are backed up to a file server using rsync over ssh.)
A few seconds after we take a photo or video with our phones we can access it on our laptops.
Fortunately, I can ssh into the broken machine from this one, but I have no idea where Monitor & Display stores its misconfiguration files.
I just tried changing gamma on one of my screens. I could not find a relevant change in any config files. Maybe it doesn't save it until logout?????
Can you use TDE via X over ssh to try to fix your display remotely?
--Mike
On 2025-08-23 14:35:59 Mike Bird via tde-users wrote:
On Sat August 23 2025 12:15:41 J Leslie Turriff via tde-users wrote:
(I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Our phones are automatically backed up to our laptops using syncthing. (And our laptops are backed up to a file server using rsync over ssh.)
Nice for you. :-) I 90% use my phone as a PHONE, almost never use the camera. I used to be able to mount my phone as a mass storage device, but then Linux "improved" the mounting system and now I can't. Is syncthing some sort of glue app?
A few seconds after we take a photo or video with our phones we can access it on our laptops.
Fortunately, I can ssh into the broken machine from this one, but I have no idea where Monitor & Display stores its misconfiguration files.
I just tried changing gamma on one of my screens. I could not find a relevant change in any config files. Maybe it doesn't save it until logout?????
I'd try doing that, but I can't see the what I'm doing to use the Logout gui. Is there a key sequence for logging out of TDE?
Can you use TDE via X over ssh to try to fix your display remotely?
Possibly; I've never tried doing X over ssh; but without knowing what file(s) to delete it's sort of moot.
--Mike
Leslie
On Sat August 23 2025 13:00:07 J Leslie Turriff via tde-users wrote:
On 2025-08-23 14:35:59 Mike Bird via tde-users wrote:
On Sat August 23 2025 12:15:41 J Leslie Turriff via tde-users wrote:
(I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Our phones are automatically backed up to our laptops using syncthing. (And our laptops are backed up to a file server using rsync over ssh.)
Nice for you. :-) I 90% use my phone as a PHONE, almost never use the camera. I used to be able to mount my phone as a mass storage device, but then Linux "improved" the mounting system and now I can't. Is syncthing some sort of glue app?
syncthing is a file syncing application. There's an app that runs on my Samsung galaxy and a package I installed from the Debian repository.
For me it is faster and easier than trying to use USB or BlueTooth. It runs continuously so I just have to wait a few seconds and my phone files are backed up and readily accessible.
On 2025-08-23 15:54:38 Mike Bird via tde-users wrote:
On Sat August 23 2025 13:00:07 J Leslie Turriff via tde-users wrote:
On 2025-08-23 14:35:59 Mike Bird via tde-users wrote:
On Sat August 23 2025 12:15:41 J Leslie Turriff via tde-users wrote:
(I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Our phones are automatically backed up to our laptops using syncthing. (And our laptops are backed up to a file server using rsync over ssh.)
Nice for you. :-) I 90% use my phone as a PHONE, almost never use the camera. I used to be able to mount my phone as a mass storage device, but then Linux "improved" the mounting system and now I can't. Is syncthing some sort of glue app?
syncthing is a file syncing application. There's an app that runs on my Samsung galaxy and a package I installed from the Debian repository.
For me it is faster and easier than trying to use USB or BlueTooth. It runs continuously so I just have to wait a few seconds and my phone files are backed up and readily accessible.
Ah. I mostly avoid installing apps on my phone (I don't much trust Android apps), but that sounds like it might be worth having.
On the Linux side, how/to where are Android filesystem objects mapped?
Leslie
On 2025-08-23 16:11:23 J Leslie Turriff via tde-users wrote:
On 2025-08-23 15:54:38 Mike Bird via tde-users wrote:
On Sat August 23 2025 13:00:07 J Leslie Turriff via tde-users wrote:
On 2025-08-23 14:35:59 Mike Bird via tde-users wrote:
On Sat August 23 2025 12:15:41 J Leslie Turriff via tde-users wrote:
(I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Our phones are automatically backed up to our laptops using syncthing. (And our laptops are backed up to a file server using rsync over ssh.)
Nice for you. :-) I 90% use my phone as a PHONE, almost never use the camera. I used to be able to mount my phone as a mass storage device, but then Linux "improved" the mounting system and now I can't. Is syncthing some sort of glue app?
syncthing is a file syncing application. There's an app that runs on my Samsung galaxy and a package I installed from the Debian repository.
For me it is faster and easier than trying to use USB or BlueTooth. It runs continuously so I just have to wait a few seconds and my phone files are backed up and readily accessible.
Ah. I mostly avoid installing apps on my phone (I don't much trust Android apps), but that sounds like it might be worth having.
On the Linux side, how/to where are Android filesystem objects mapped?
Never mind; looking at the syncthing docs now.
Leslie
On 2025-08-23 16:11:23 J Leslie Turriff via tde-users wrote:
On 2025-08-23 15:54:38 Mike Bird via tde-users wrote:
On Sat August 23 2025 13:00:07 J Leslie Turriff via tde-users wrote:
On 2025-08-23 14:35:59 Mike Bird via tde-users wrote:
On Sat August 23 2025 12:15:41 J Leslie Turriff via tde-users wrote:
(I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Our phones are automatically backed up to our laptops using syncthing. (And our laptops are backed up to a file server using rsync over ssh.)
Nice for you. :-) I 90% use my phone as a PHONE, almost never use the camera. I used to be able to mount my phone as a mass storage device, but then Linux "improved" the mounting system and now I can't. Is syncthing some sort of glue app?
syncthing is a file syncing application. There's an app that runs on my Samsung galaxy and a package I installed from the Debian repository.
For me it is faster and easier than trying to use USB or BlueTooth. It runs continuously so I just have to wait a few seconds and my phone files are backed up and readily accessible.
Ah. I mostly avoid installing apps on my phone (I don't much trust Android apps), but that sounds like it might be worth having.
On the Linux side, how/to where are Android filesystem objects mapped?
But now I see this: https://forum.syncthing.net/t/discontinuing-syncthing-android/23002
Leslie
On Sat August 23 2025 14:53:03 J Leslie Turriff via tde-users wrote:
But now I see this: https://forum.syncthing.net/t/discontinuing-syncthing-android/23002
Sorry about that. I was not aware. Thanks for letting me know.
Our syncthings are still running but it does indeed appear to have been removed from the play store.
I see syncthing-fork with 4.7* and 100K+ downloads in the play store but I have not tried it myself.
On 2025-08-23 17:36:12 Mike Bird via tde-users wrote:
On Sat August 23 2025 14:53:03 J Leslie Turriff via tde-users wrote:
But now I see this: https://forum.syncthing.net/t/discontinuing-syncthing-android/23002
Sorry about that. I was not aware. Thanks for letting me know.
Our syncthings are still running but it does indeed appear to have been removed from the play store.
I see syncthing-fork with 4.7* and 100K+ downloads in the play store but I have not tried it myself.
Yeah; there's a reference in the replies to that post about syncthing-fork, but it's by Catfriend1, but the one in the Android appstore is by Nicola Hristov.
This is the sort of thing that makes me reluctant to install stuff on my phone.
Leslie
вс, 24 авг. 2025 г., 01:52 J Leslie Turriff via tde-users < users@trinitydesktop.org>:
On 2025-08-23 17:36:12 Mike Bird via tde-users wrote:
On Sat August 23 2025 14:53:03 J Leslie Turriff via tde-users wrote:
But now I see this:https://forum.syncthing.net/t/discontinuing-syncthing-android/23002
Sorry about that. I was not aware. Thanks for letting me know.
Our syncthings are still running but it does indeed appear to have been removed from the play store.
I see syncthing-fork with 4.7* and 100K+ downloads in the play store but I have not tried it myself.
Yeah; there's a reference in the replies to that post aboutsyncthing-fork, but it's by Catfriend1, but the one in the Android appstore is by Nicola Hristov.
This is the sort of thing that makes me reluctant to installstuff on my phone.
Well, termux is technically "app" but I use it (after giving it permissions for my photo/download folders) for rsyncing files I downloaded to this Android 11 tablet and photos/vids I screenshoted or made with OpenCamera (this camera too cheap for having manual mode, so no big point in using OpenCamera over standart app ...) to my various Linux and even hackintosh computers.
Also installed pure-ftpd in said termux, instant ftp for other machines at port 2121.
Leslie
Platform: Linux Distribution: openSUSE Leap 15.6 - x86_64 Desktop Environment: Trinity Qt: 3.5.0 TDE: R14.1.3 tde-config: 1.0 ____________________________________________________ tde-users mailing list -- users@trinitydesktop.org To unsubscribe send an email to users-leave@trinitydesktop.org Web mail archive available at https://mail.trinitydesktop.org/mailman3/hyperkitty/list/users@trinitydeskto...
On 2025-08-23 17:36:12 Mike Bird via tde-users wrote:
On Sat August 23 2025 14:53:03 J Leslie Turriff via tde-users wrote:
But now I see this: https://forum.syncthing.net/t/discontinuing-syncthing-android/23002
Sorry about that. I was not aware. Thanks for letting me know.
Our syncthings are still running but it does indeed appear to have been removed from the play store.
I see syncthing-fork with 4.7* and 100K+ downloads in the play store but I have not tried it myself.
So I'm looking at Catfriend1's syncthing-fork for Android https://github.com/Catfriend1/syncthing-android?tab=readme-ov-file and trying to understand what all the parts are of the Android app, and it looks like it's a front-end for syncthing-fork? and I guess that F-Droid is an alternate repository to PlayStore, so there are two apps to install, syncthing-fork and syncthing-fork for Android?
I am very confused; as you can tell I've downloaded fewer than a half-dozen apps in the years I've had this phone.
I'm guessing that "nel0x" is maybe Nickola Hristov, who appears to be the owner of the app in Playstore.
Leslie
On Sat August 23 2025 18:25:00 J Leslie Turriff via tde-users wrote:
So I'm looking at Catfriend1's syncthing-fork for Android https://github.com/Catfriend1/syncthing-android?tab=readme-ov-file and trying to understand what all the parts are of the Android app, and it looks like it's a front-end for syncthing-fork? and I guess that F-Droid is an alternate repository to PlayStore, so there are two apps to install, syncthing-fork and syncthing-fork for Android?
I am very confused; as you can tell I've downloaded fewer than a half-dozen apps in the years I've had this phone.
I only download phone apps from the play store, and then only apps with a lot of downloads and a good rating. The reason is I don't have time to check for malicious source code and then recompile an app from scratch.
Debian, TDE, and a very few other sources I trust for my laptops and servers.
--Mike
On Saturday 23 August 2025 18:35:29 Mike Bird via tde-users wrote:
On Sat August 23 2025 18:25:00 J Leslie Turriff via tde-users wrote:
So I'm looking at Catfriend1's syncthing-fork for Android https://github.com/Catfriend1/syncthing-android?tab=readme-ov-file and trying to understand what all the parts are of the Android app, and it looks like it's a front-end for syncthing-fork? and I guess that F-Droid is an alternate repository to PlayStore, so there are two apps to install, syncthing-fork and syncthing-fork for Android?
I am very confused; as you can tell I've downloaded fewer than a half-dozen apps in the years I've had this phone.
I only download phone apps from the play store, and then only apps with a lot of downloads and a good rating. The reason is I don't have time to check for malicious source code and then recompile an app from scratch.
Debian, TDE, and a very few other sources I trust for my laptops and servers.
--Mike
In my opinion, F-droid and other repositories like it is the only way to go with smartphones. (There are other repositories, G-droid, M-droid, some Guardian repositories, etc.; but they require a bit of searching.)
On my first smartphone, I didn't know anything about them, and I had to use one for my work at the time, so my choices were limited. I went ahead and downloaded from the PlayStore, and allowed everybody free access to my data. Maybe others don't mind doing that? Gradually, I started moving towards something more like GNU/Linux, like TDE, like what I've been using on my desktops and laptops for decades now. I still used PlayStore apps, but was also trying out F-droid apps.
While the iStuff is good in some ways, users get locked into Apple apps *only* (for the most part); besides which, their phones are too expensive for what one gets.
My next phone, I changed over almost everything to F-droid apps, though there were still a couple of proprietary apps that I still used.
Now I am on my third smartphone, as Samsung Galaxy, and right from the start I have used *only* F-droid apps, all open-source, as close to GNU/Linux free/libre as I can get. Also, I have shut off everything Google, have shut off mobile data, never use internet on my phone at all (except occasionally for wifi calling, when reception is bad). I use my phone as a phone, and don't need it for all that other stuff. I do use it a lot to listen to music, as I have copied the best of the best of my music collection to a 256 gb SD card. The camera I use only rarely, when I am especially taken with a subject, and even then I don't sync with my other machines.
When I have time and inclination, and don't mind bricking my phone accidentally, I will try to install a free/libre OS such as, perhaps, Replicant. I don't know of any others that are totally free as in freedom, although I've heard good things about a couple OSs for phones
For myself, at least, F-droid and its kin is the way to go. My phone has been running just fine for a couple years now; although, as I said, I don't use it much. I definitely use it more for music, or for the calculator, for the calendar, etc., etc. (all F-droid apps), and have found apps that (promise that they) block unwanted apps from accessing the internet, or collecting data, etc. I don't know how much I believe it, but I don't seem to get spam, or ads, or pop-ups, or unwanted calls, etc. Most months, I am lucky if I make as many as a dozen calls, and almost never get calls.
As for what apps to use: Well, other people probably know better than I what they want to do with their phones. But the nice thing about F-droid is that they tell you what permissions are required by every app, what information they collect, whether it depends on non-free software, etc.
It's not quite GNU/Linux yet, but if I installed the Replicant OS on my phone, and used only F-droid and similar apps, that would come pretty close.
Bill
P.S. If this response was not long enough, I could also include my tips for how to get phone service for your smartphone for just $15 a month; unlimited calls and text, only 2 gb of mobile data (which I myself never use). Otherwise, it seems to be my usual phone service, so I am satsified.
You have to decide what "security" level you want, it depends on what you do with your phone (if you almost only phone, where is the danger?) - but that's not the point.
Apps thet I use are removed from the store from time to time. My solution is to always get the *.apk for an app I really want to use.
You can continue to install the apk for quit some time, even when Android tells you you should not (I install them from the computer with ADB).
For example I continue to transfer files with AirMore, although the app can't be found in the Google store anymore (but apparently still exists for iPhones).
Fwiw, I use a Pixel phone that was online with Android only long enough to unlock the bootloader. Then GrapheneOS, ProtonVPN, Signal, ProtonMail, Fdroid, and the Aurora store. And should it get cracked, they would discover they did a whole lot of work for nothing. Same thing with the Pixel tablet on which I'm writing this now.
dep Pictures: http://www.ipernity.com/doc/depscribe/album Column: https://ofb.biz/author/dep/
On 2025-08-24 03:31:54 dep via tde-users wrote:
Fwiw, I use a Pixel phone that was online with Android only long enough to unlock the bootloader. Then GrapheneOS, ProtonVPN, Signal, ProtonMail, Fdroid, and the Aurora store. And should it get cracked, they would discover they did a whole lot of work for nothing. Same thing with the Pixel tablet on which I'm writing this now.
dep Pictures: http://www.ipernity.com/doc/depscribe/album Column: https://ofb.biz/author/dep/
tde-users mailing list -- users@trinitydesktop.org To unsubscribe send an email to users-leave@trinitydesktop.org Web mail archive available at https://mail.trinitydesktop.org/mailman3/hyperkitty/list/users@trinitydeskt op.org
I have been considering replacing my Galaxy with a FairPhone, which is both repairable/upgradable and secure (if running e/os, and using its own app library, separate from Android). https://shop.fairphone.com/about-us https://shop.fairphone.com/fairphone-e-operating-system
Leslie
J Leslie Turriff composed on 2025-08-23 14:15 (UTC-0500):
OTOH, on this machine, /etc/trinity/tdedisplay/ is empty,
| @14:02:05 leslie@pinto | wd=/home/leslie | $ ls -l /etc/trinity/tdedisplay/ | total 0 | rc=0
so maybe just removing that config file will fix it?
Personal settings like display setup are in ~/.trinity/. Display settings you can change from KControl don't go anywhere in /etc/trinity/ I remember ever seeing, except for in tdmrc, where I don't think screen resolution is any of the possibles. If I had to guess which file causes the trouble, it would be either kdeglobals or twinrulesrc:
ls -gGlrt | tail
-rw------- 1 2113 Aug 23 15:57 twinrc -rw-rw-r-- 1 333 Aug 23 16:05 startupconfigkeys -rw------- 1 2787 Aug 23 16:06 kickerrc -rw------- 1 63 Aug 23 16:06 knotifyrc -rw-rw-r-- 1 1516 Aug 23 16:06 gtkrc -rw-rw-r-- 1 1550 Aug 23 16:06 gtkrc-2.0 -rw------- 1 215 Aug 23 16:06 khelpcenterrc -rw------- 1 1070 Aug 23 16:08 twinrulesrc -rw------- 1 6562 Aug 23 16:08 kdeglobals -rw------- 1 16 Aug 23 16:08 kiccconfigrc
Before messing with config files, if this is basically about a screen resolution problem you can try dropping a one-line file with xrandr in:
Debian/*buntu: /etc/X11/Xsession.d/ openSUSE/Fedora: /etc/X11/xinit/xinitrc.d/
to set resolution automatically as the session starts, e.g.:
xrandr --dpi 100 --output HDMI-1 --mode 1600x900 --rate 60
Set to at least on thing that you know is supported but not the normal default, to tip the session that an override of EDID is desired. If this helps, then remove that file or change it before next session start to include only settings you really want applied.
On 2025-08-23 15:15:37 Felix Miata via tde-users wrote:
ls -gGlrt | tail
Ah. It appears to be kdeglobals:
| @15:33:15 leslie@chestnut | wd=/home/leslie | $ tree -fiapugsD .trinity|grep -i 'kdeglobals|twinrulesrc' | [-rw------- leslie users 8257 Aug 23 | 15:30] .trinity/share/config/kdeglobals | [-rw------- leslie users 779 Aug 19 23:59] .trinity/share/config/twinrulesrc | rc=0
I have no idea which entries are pertinent to the issue; I have attached the file.
Leslie
On Sat, 23 Aug 2025 14:15:41 -0500 J Leslie Turriff via tde-users users@trinitydesktop.org wrote:
Well, I made the mistake of tinkering with the Monitor & Display settings in the Control Center on my other machine, expecting that the 'Test Settings' button would work like the 'Test' button in the Configure Desktop => Screen Saver does, but no; 'Test Settings' seems to have stored its settings somewhere, there is no evident way to revert the display, and further tinkering has now the monitor is totally unreadable. (I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Fortunately, I can ssh into the broken machine from this one, but I have no idea where Monitor & Display stores its misconfiguration files.
Does someone know where they would be?
Do you have anything in the directory ~/.trinity/share/config/displayconfig/ ?
Also, depending on *why* you can't read the screen, it may be possible to force-change the current display setup back to something more useful using xrandr at the command line through your SSH session, but read the man page first as it isn't the simplest thing to use.
E. Liddell
On 2025-08-23 18:21:28 E. Liddell via tde-users wrote:
On Sat, 23 Aug 2025 14:15:41 -0500
J Leslie Turriff via tde-users users@trinitydesktop.org wrote:
Well, I made the mistake of tinkering with the Monitor & Display settings in the Control Center on my other machine, expecting that the 'Test Settings' button would work like the 'Test' button in the Configure Desktop => Screen Saver does, but no; 'Test Settings' seems to have stored its settings somewhere, there is no evident way to revert the display, and further tinkering has now the monitor is totally unreadable. (I'd provide a screenshot, but as usual, my old Samsung Galaxy 6 phone can't be read by Trinity.)
Fortunately, I can ssh into the broken machine from this one, but I have no idea where Monitor & Display stores its misconfiguration files.
Does someone know where they would be?
Do you have anything in the directory ~/.trinity/share/config/displayconfig/ ?
No. | @15:44:04 leslie@pinto | wd=/home/leslie | $ ls -l ~/.trinity/share/config/displayconfig/ | /bin/ls: cannot access '/home/leslie/.trinity/share/config/displayconfig/': No such file or directory | rc=2
Also, depending on *why* you can't read the screen, it may be possible to force-change the current display setup back to something more useful using xrandr at the command line through your SSH session, but read the man page first as it isn't the simplest thing to use.
Well, xrandr shows the following (I filtered out the low-res settings;
| @20:34:37 CyllarusCentaur@chestnut | wd=/home/CyllarusCentaur | $ xrandr|grep 'Screen|DP-|HDMI-|3440x1440' | Screen 0: minimum 320 x 200, current 3440 x 1440, maximum 16384 x 16384 | DP-1 disconnected (normal left inverted right x axis y axis) | DP-2 disconnected (normal left inverted right x axis y axis) | DP-3 disconnected (normal left inverted right x axis y axis) | HDMI-1 connected primary 3440x1440+0+0 (normal left inverted right x axis y axis) 800mm x 334mm | 3440x1440 100.00*+ 84.96 49.95 | HDMI-1-2 disconnected (normal left inverted right x axis y axis) | DP-1-4 disconnected (normal left inverted right x axis y axis) | DP-1-5 disconnected (normal left inverted right x axis y axis) | DP-1-6 disconnected (normal left inverted right x axis y axis) | rc=0
which indicates that it is in its preferred (native) resolution.
(I won't be using xrandr to modify any of the zillion settings shown on the info page; hardware stuff makes my head hurt. :-) I never should have messed with Monitor & Display in the first place.)
E. Liddell
Leslie
J Leslie Turriff composed on 2025-08-23 20:47 (UTC-0500):
| @20:34:37 CyllarusCentaur@chestnut | wd=/home/CyllarusCentaur | $ xrandr|grep 'Screen|DP-|HDMI-|3440x1440' | Screen 0: minimum 320 x 200, current 3440 x 1440, maximum 16384 x 16384 | DP-1 disconnected (normal left inverted right x axis y axis) | DP-2 disconnected (normal left inverted right x axis y axis) | DP-3 disconnected (normal left inverted right x axis y axis) | HDMI-1 connected primary 3440x1440+0+0 (normal left inverted right x axis y axis) 800mm x 334mm | 3440x1440 100.00*+ 84.96 49.95 | HDMI-1-2 disconnected (normal left inverted right x axis y axis) | DP-1-4 disconnected (normal left inverted right x axis y axis) | DP-1-5 disconnected (normal left inverted right x axis y axis) | DP-1-6 disconnected (normal left inverted right x axis y axis) | rc=0
which indicates that it is in its preferred (native) resolution.
(I won't be using xrandr to modify any of the zillion settings shown on the info page; hardware stuff makes my head hurt. :-) I never should have messed with Monitor & Display in the first place.)
If it's still not working, I suggest simply switching to a DisplayPort cable. DP was /designed/ for computers, HDMI for TV. DP has functionality in PC environments HDMI cannot provide that sometimes makes a difference, e.g. MST[1]. I suspect also a lot of Linux devels don't have 3440x1440 displays to test with, so must rely on actual user reports to know if trouble with extra-wides sneaks into something.
[1] https://en.wikipedia.org/wiki/DisplayPort#Multi-Stream_Transport_(MST)
On 2025-08-23 21:13:13 Felix Miata via tde-users wrote:
J Leslie Turriff composed on 2025-08-23 20:47 (UTC-0500):
: :
(I won't be using xrandr to modify any of the zillion settings shown on the info page; hardware stuff makes my head hurt. :-) I never should have messed with Monitor & Display in the first place.)
If it's still not working, I suggest simply switching to a DisplayPort cable. DP was /designed/ for computers, HDMI for TV. DP has functionality in PC environments HDMI cannot provide that sometimes makes a difference, e.g. MST[1]. I suspect also a lot of Linux devels don't have 3440x1440 displays to test with, so must rely on actual user reports to know if trouble with extra-wides sneaks into something.
[1] https://en.wikipedia.org/wiki/DisplayPort#Multi-Stream_Transport_(MST)
Thanks Felix. I took a chance and rebooted the machine, and all is well. Apparently, though there is no way to back out the "Test Settings" they are not actually permanently stored; but unless one really understands how this stuff works (and I don't), avoid fiddling with these monitor 'improvement' tools. :-)
Leslie
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Thierry de Coulon -
William Morder