Re: [gentoo-user] Why is KDE so bad at multiple monitors?
On Sun, Feb 25, 2024 at 10:35 AM Daniel Frey wrote: > I probably should have added more details... I do have an nvidia card - > RTX 3070Ti. Monitors use 2x DP ports and 1x HDMI port. > > KDE behaves very strangely. Like, it crashes often when using multiple > monitors and I've never been able to figure that out. > > nvidia-settings (which I plain forgot about) can generate an Xorg.conf > file from what I remember, maybe I'll try that. > > I currently don't have an Xorg.conf (as everything I've read says it > should autodetect...) so maybe I'll try overriding it. > > Dan I'm not Gentoo-based but have a similar setup. 3080ti, 2 Asus monitors, 1 Samsung, all running 1920x1080, all in landscape. I have absolutely no problems at all with KDE remembering where everything goes, all 3 monitors, all taskbars, for multiple users with different configurations. I use 1 HDMI cable and 2 HDMI->DVI cables. Everything just works. I have no xorg.conf file. I tried Wayland for a while but there were too many weird artifacts so I'm back to basics. I'd suggest you look carefully at every flag you are using to build your software. I've used 3 distros here recently, as well as Win 10 & 11 and none of them have had problems like you are describing. Best of luck, Mark
Re: [gentoo-user] Why is KDE so bad at multiple monitors?
On Sunday, 25 February 2024 17:36:25 GMT Daniel Frey wrote: > On 2/25/24 01:01, Michael wrote: > > I used to experience the same when using Xorg with AMD-Radeon graphics > > instead of Nvidia, but since I moved to Wayland the problem of losing > > screen settings has gone. One monitor is using the DVI port of the card > > and the other HDMI. It should be worth trying Wayland instead of Xorg to > > see if it works out better for your setup. > > I actually tried Wayland maybe 3 months ago to try to solve the problem. > Wayland doesn't work at all - it just gave me a blank screen at login. I > did check USE flags and recompiled and still login did not work at all. > > At least Xorg gave me a misconfigured working login (better than no > login at all.) > > -Dan >From the little I know about Nividia nuances the symptom of a black screen points to KMS mode setting missing in the kernel. Also nvidia_drm.modeset should be able to load without errors, or the wayland compositor will not work. Also, I recall reading somewhere Nvidia does not like monitors with different resolutions and refresh rates, but I don't know if there is any workaround to this. TBH I moved away from Xorg because it was getting worse and worse over time with my graphics. Wayland was a bit unstable on my systems in the beginning, but over time it has improved significantly. signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Why is KDE so bad at multiple monitors?
On 2/25/24 01:01, Michael wrote: I used to experience the same when using Xorg with AMD-Radeon graphics instead of Nvidia, but since I moved to Wayland the problem of losing screen settings has gone. One monitor is using the DVI port of the card and the other HDMI. It should be worth trying Wayland instead of Xorg to see if it works out better for your setup. I actually tried Wayland maybe 3 months ago to try to solve the problem. Wayland doesn't work at all - it just gave me a blank screen at login. I did check USE flags and recompiled and still login did not work at all. At least Xorg gave me a misconfigured working login (better than no login at all.) -Dan
Re: [gentoo-user] Why is KDE so bad at multiple monitors?
On 2/24/24 21:52, Dale wrote: I have two monitors too, sort of. One monitor is for computer stuff, checking email, surfing the net etc etc etc. The other monitor I use to watch TV with. The output from the video card second output goes to a splitter so I can have the same video in both my bedroom and the living room. I use Nvidia settings to manage mine but I run into the same problem you do. Sometimes when I login, the second monitor output is dead. TV shows the dreaded "No signal" thing floating around. I have to open Nvidia settings, disable the second monitor output, hit apply, click that I can see the screen still, re-enable the second monitor, click apply, click I can see the monitor and then the second monitor works again. It's annoying as heck. I'm on the 470 series of Nvidia drivers. Best my old card can do. LOL I looked in the KDE System Settings display settings screen and it shows the same as Nvidia. Maybe one copies the other??? There's really nothing for me to change there so I can't hit apply. :/ I've always wondered if I can set this up in xorg.conf file instead of the GUI. Maybe it would work better. Thing is, everything says it should "just work" and the file shouldn't be needed. This may not be a KDE problem. It could be a Nvidia problem. It may be KDE but I'm not sure which to blame. I don't let my screen go off except for the once a week trip to town to get shots so I just put up with it. The rest of the time, my monitors and TVs tend to stay on. You are not alone. I'm just not real sure this is a KDE problem. It's possible tho. Mostly, you are not alone. Dale :-) :-) I probably should have added more details... I do have an nvidia card - RTX 3070Ti. Monitors use 2x DP ports and 1x HDMI port. KDE behaves very strangely. Like, it crashes often when using multiple monitors and I've never been able to figure that out. nvidia-settings (which I plain forgot about) can generate an Xorg.conf file from what I remember, maybe I'll try that. I currently don't have an Xorg.conf (as everything I've read says it should autodetect...) so maybe I'll try overriding it. Dan
Re: [gentoo-user] Why is KDE so bad at multiple monitors?
Michael wrote: > On Sunday, 25 February 2024 05:52:20 GMT Dale wrote: >> Daniel Frey wrote: >>> After cursing KDE for a while with three monitors, does anyone have >>> any idea why KDE is so bad at managing multiple monitors? >>> >>> All I'm trying to do is get it to remember *where* my monitors are (I >>> have two side-by-side and one above the right monitor.) I go into >>> System Settings, set it up and it works perfectly... until I log out. >>> Then it resets everything and I have to set it up again. >>> >>> Anyone have any clue why it refuses to save settings? >>> >>> -Dan >> I have two monitors too, sort of. One monitor is for computer stuff, >> checking email, surfing the net etc etc etc. The other monitor I use to >> watch TV with. The output from the video card second output goes to a >> splitter so I can have the same video in both my bedroom and the living >> room. I use Nvidia settings to manage mine but I run into the same >> problem you do. Sometimes when I login, the second monitor output is >> dead. TV shows the dreaded "No signal" thing floating around. I have >> to open Nvidia settings, disable the second monitor output, hit apply, >> click that I can see the screen still, re-enable the second monitor, >> click apply, click I can see the monitor and then the second monitor >> works again. It's annoying as heck. I'm on the 470 series of Nvidia >> drivers. Best my old card can do. LOL >> >> I looked in the KDE System Settings display settings screen and it shows >> the same as Nvidia. Maybe one copies the other??? There's really >> nothing for me to change there so I can't hit apply. :/ I've always >> wondered if I can set this up in xorg.conf file instead of the GUI. >> Maybe it would work better. Thing is, everything says it should "just >> work" and the file shouldn't be needed. >> >> This may not be a KDE problem. It could be a Nvidia problem. It may be >> KDE but I'm not sure which to blame. I don't let my screen go off >> except for the once a week trip to town to get shots so I just put up >> with it. The rest of the time, my monitors and TVs tend to stay on. >> >> You are not alone. I'm just not real sure this is a KDE problem. It's >> possible tho. Mostly, you are not alone. >> >> Dale >> >> :-) :-) > I used to experience the same when using Xorg with AMD-Radeon graphics > instead > of Nvidia, but since I moved to Wayland the problem of losing screen settings > has gone. One monitor is using the DVI port of the card and the other HDMI. > It should be worth trying Wayland instead of Xorg to see if it works out > better for your setup. I've read where Wayland still has a few other issues. I'm sure at some point, Xorg is going to end and the switch will be the only option. When that time comes, likely most all issues will be fixed. That said, I've also read where some people really like it. I think it is installed here and even used by some things. I've seen the USE flag on a lot of packages. Given this only affects me once a week, I'll stay where I am at the moment. It is nice to know there is another option tho. One that might even work better. ;-) Dale :-) :-)
Re: [gentoo-user] Why is KDE so bad at multiple monitors?
On Sunday, February 25, 2024 3:53:37 P.M. AEDT Daniel Frey wrote: > After cursing KDE for a while with three monitors, does anyone have any > idea why KDE is so bad at managing multiple monitors? > > All I'm trying to do is get it to remember *where* my monitors are (I > have two side-by-side and one above the right monitor.) I go into System > Settings, set it up and it works perfectly... until I log out. Then it > resets everything and I have to set it up again. > > Anyone have any clue why it refuses to save settings? > > -Dan Have a look in /etc/Xorg/xorg.conf Mine has this section, which I think I edited by hand. My monitor config does survive reboots. Section "ServerLayout" Identifier "X.org Configured" Screen 0 "Screen0" 0 0 Screen 1 "Screen1" RightOf "Screen0" InputDevice"Mouse0" "CorePointer" InputDevice"Keyboard0" "CoreKeyboard" EndSection "man xorg.conf" gives the syntax. Here is the section for the "Screen" part of "ServerLayout" Screen screen-num "screen-id" position-information One of these entries must be given for each screen being used in a session. The screen-id field is mandatory, and specifies the Screen section being referenced. The screen-num field is optional, and may be used to specify the screen number in multi-head configurations. When this field is omitted, the screens will be numbered in the order that they are listed in. The numbering starts from 0, and must be consecutive. The position-information field describes the way multiple screens are positioned. There are a number of different ways that this information can be provided: x y Absolute x y These both specify that the upper left corner’s coordinates are (x,y). The Absolute keyword is optional. Some older versions of XFree86 (4.2 and earlier) don’t recognise the Absolute keyword, so it’s safest to just specify the coordinates without it. RightOf "screen-id" LeftOf"screen-id" Above "screen-id" Below "screen-id" Relative "screen-id" x y These give the screen’s location relative to another screen. The first four position the screen immediately to the right, left, above or below the other screen. When positioning to the right or left, the top edges are aligned. When positioning above or below, the left edges are aligned. The Relative form specifies the offset of the screen’s origin (upper left corner) relative to the origin of another screen. -- Reverend Paul Colquhoun, ULC. http://andor.dropbear.id.au/ Asking for technical help in newsgroups? Read this first: http://catb.org/~esr/faqs/smart-questions.html#intro
Re: [gentoo-user] Why is KDE so bad at multiple monitors?
On Sunday, 25 February 2024 05:52:20 GMT Dale wrote: > Daniel Frey wrote: > > After cursing KDE for a while with three monitors, does anyone have > > any idea why KDE is so bad at managing multiple monitors? > > > > All I'm trying to do is get it to remember *where* my monitors are (I > > have two side-by-side and one above the right monitor.) I go into > > System Settings, set it up and it works perfectly... until I log out. > > Then it resets everything and I have to set it up again. > > > > Anyone have any clue why it refuses to save settings? > > > > -Dan > > I have two monitors too, sort of. One monitor is for computer stuff, > checking email, surfing the net etc etc etc. The other monitor I use to > watch TV with. The output from the video card second output goes to a > splitter so I can have the same video in both my bedroom and the living > room. I use Nvidia settings to manage mine but I run into the same > problem you do. Sometimes when I login, the second monitor output is > dead. TV shows the dreaded "No signal" thing floating around. I have > to open Nvidia settings, disable the second monitor output, hit apply, > click that I can see the screen still, re-enable the second monitor, > click apply, click I can see the monitor and then the second monitor > works again. It's annoying as heck. I'm on the 470 series of Nvidia > drivers. Best my old card can do. LOL > > I looked in the KDE System Settings display settings screen and it shows > the same as Nvidia. Maybe one copies the other??? There's really > nothing for me to change there so I can't hit apply. :/ I've always > wondered if I can set this up in xorg.conf file instead of the GUI. > Maybe it would work better. Thing is, everything says it should "just > work" and the file shouldn't be needed. > > This may not be a KDE problem. It could be a Nvidia problem. It may be > KDE but I'm not sure which to blame. I don't let my screen go off > except for the once a week trip to town to get shots so I just put up > with it. The rest of the time, my monitors and TVs tend to stay on. > > You are not alone. I'm just not real sure this is a KDE problem. It's > possible tho. Mostly, you are not alone. > > Dale > > :-) :-) I used to experience the same when using Xorg with AMD-Radeon graphics instead of Nvidia, but since I moved to Wayland the problem of losing screen settings has gone. One monitor is using the DVI port of the card and the other HDMI. It should be worth trying Wayland instead of Xorg to see if it works out better for your setup. signature.asc Description: This is a digitally signed message part.
