Re: X: how to *really* switch from nouveau to modesetting?
Felix Miata wrote on 9/12/23 11:51: You really should eliminate that xorg.conf file, and if the problem continues, don't assume it's the kernel driver at fault. Just report a bug if so inclined. Where would depend on behavior after removing xorg.conf. If it fixes the problem, there is almost assuredly no bug anywhere at all affecting you. If with modesetting it's gone, but with xserver-xorg-video-nouveau installed and in use it remains, then it would be good to report a nouveau DDX bug, though the problem could be DRI or Mesa. Unreported bugs can go a very long time before a fix occurs, if ever. What you are now experiencing is not acceptable behavior. 13 years of age is too young to accept FOSS performance degradation or need GPU upgrade. I have removed /etc/X11/xorg.conf, and the problem remains. So in this case, where should I report the issue? Doc -- Web: http://enginehousebooks.com/drevans
Re: X: how to *really* switch from nouveau to modesetting?
D. R. Evans composed on 2023-09-12 11:12 (UTC-0600): > Felix Miata wrote: > From the rest of your post, it sounds like everything is as it should be, > except that I should probably remove the /etc/X11/xorg.conf file. And I could > also re-install the xserver-xorg-video-nouveau without effecting any change; > but for now I think I'll just keep things as they are and just note these as > possible changes to try sometime, with the expectation that they won't make > any practical difference, but might make the system a bit cleaner to > administer. You really should eliminate that xorg.conf file, and if the problem continues, don't assume it's the kernel driver at fault. Just report a bug if so inclined. Where would depend on behavior after removing xorg.conf. If it fixes the problem, there is almost assuredly no bug anywhere at all affecting you. If with modesetting it's gone, but with xserver-xorg-video-nouveau installed and in use it remains, then it would be good to report a nouveau DDX bug, though the problem could be DRI or Mesa. Unreported bugs can go a very long time before a fix occurs, if ever. What you are now experiencing is not acceptable behavior. 13 years of age is too young to accept FOSS performance degradation or need GPU upgrade. -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata
Re: X: how to *really* switch from nouveau to modesetting?
Felix Miata wrote on 9/11/23 19:57: You did it. You made the switch. But see below. (There are multiple components to GPU support in Linux.) (There is no "the" nouveau "driver". Graphics support is in the hands of multiple software components, several of which incorporate the string "nouveau" in naming.) I'm glad that you understand this stuff. It certainly seems non-obvious. And the days of good O'Reilly books that walk one through details like this seem to be long gone :-( From the rest of your post, it sounds like everything is as it should be, except that I should probably remove the /etc/X11/xorg.conf file. And I could also re-install the xserver-xorg-video-nouveau without effecting any change; but for now I think I'll just keep things as they are and just note these as possible changes to try sometime, with the expectation that they won't make any practical difference, but might make the system a bit cleaner to administer. And, from what you say here: > D. R. Evans composed on 2023-09-11 11:47 (UTC-0600): > >> Graphics: >> Device-1: NVIDIA GF108 [GeForce GT 430] vendor: Gigabyte driver: nouveau > > Above shows your kernel DEVICE driver is nouveau. It ships specifically for each > kernel with each kernel. For NVidia GPUs there is no other FOSS device driver > option for normal use with KMS enabled, which maximum possible FOSS performance > unconditionally requires. With KMS disabled, there is a crude generic option with > limited resolutions available that no one ever would use purposely unless too > naive to understand the opportunity loss. It's for fallback and troubleshooting > when normal is unavailable. it sounds like the issue must be in the nouveau kernel device driver, and there's nothing I can really do to change that. So I guess I will just wait and hope that some future update removes the problem. ⁂ Just for the record, to provide some context for anyone finding this thread as a result of a search: 1. The issue is that black-on-white text has a "tail" extending some distance on the right of the text (I don't know how to describe it any better than that). 2. It began with a normal bullseye update. Before that, there was no problem at all. 3. Every update and upgrade since then has exhibited the problem. 4. The monitor is KVM-switchable to another bookworm installation, which does not (and never has) exhibited the problem. Doc -- Web: http://enginehousebooks.com/drevans
Re: X: how to *really* switch from nouveau to modesetting?
You did it. You made the switch. But see below. (There are multiple components to GPU support in Linux.) (There is no "the" nouveau "driver". Graphics support is in the hands of multiple software components, several of which incorporate the string "nouveau" in naming.) D. R. Evans composed on 2023-09-11 11:47 (UTC-0600): > Graphics: >Device-1: NVIDIA GF108 [GeForce GT 430] vendor: Gigabyte driver: nouveau Above shows your kernel DEVICE driver is nouveau. It ships specifically for each kernel with each kernel. For NVidia GPUs there is no other FOSS device driver option for normal use with KMS enabled, which maximum possible FOSS performance unconditionally requires. With KMS disabled, there is a crude generic option with limited resolutions available that no one ever would use purposely unless too naive to understand the opportunity loss. It's for fallback and troubleshooting when normal is unavailable. > v: kernel non-free: series: 390.xx+ status: legacy-active (EOL~late 2022) > arch: Fermi code: GF1xx process: 40/28nm built: 2010-16 pcie: gen: 1 > speed: 2.5 GT/s lanes: 16 ports: active: HDMI-A-1 empty: DVI-I-1,VGA-1 > bus-ID: 04:00.0 chip-ID: 10de:0de1 class-ID: 0300 >Display: x11 server: X.Org v: 1.21.1.7 with: Xwayland v: 22.1.9 driver: X: > loaded: modesetting dri: nouveau gpu: nouveau display-ID: :0 screens: 1 Above shows your loaded X DISPLAY driver is modesetting, the one & only competent FOSS alternative to the nouveau that ships in xserver-xorg-video-nouveau. The DRI driver is another nouveau, another piece of the graphics support puzzle, another only option for competent FOSS NVidia GPU support. # dpkg-query -W | grep nouveau libdrm-nouveau2:amd64 2.4.114-1+b1amd64 Userspace interface to nouveau-specific kernel DRM services -- runtime # https://en.wikipedia.org/wiki/Direct_Rendering_Infrastructure > My xorg.conf file currently looks like this: You should have no /etc/X11/xorg.conf file. Proprietary NVidia drivers and configurators normally make one. It's just something they do. For FOSS drivers, /etc/X11/xorg.conf is an anachronism that remains occasionally useful. Any such file created by NVidia installation or reconfiguration must be removed, or severely edited, in order to revert from proprietary NVidia driver use to FOSS-only use. > And the file that Felix suggested I install, > /etc/X11/xorg.conf.d/50-device.conf, looks like this: > Section "Device" >Identifier "DDX" > Driver "modesetting" > # Driver "nouveau" > EndSection That's a valid available option for overriding the selection Xorg would make on its automagic own. Its existence overrides any conflicting equivalent in any existing /etc/X11/xorg.conf. By having it it is normally not necessary to keep xserver-xorg-video-nouveau uninstalled to keep X keeping the modesetting DIX loaded instead of the nouveau DDX. DIX: Device Independent X display driver (works with most GPUs regarless of brand) DDX: Device Dependent X display driver (specific to one brand of GPU) -- Evolution as taught in public schools is, like religion, based on faith, not based on science. Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata
X: how to *really* switch from nouveau to modesetting?
This is a follow-on to the thread that started with: https://lists.debian.org/debian-user/2023/05/msg00657.html Following the upgrade to bookworm that I recently performed, I was hoping that the problem described in the first post in that thread would magically go away. It didn't :-( Felix suggested removing the nouveau driver and using "modesetting" as the driver. I have removed the nouveau driver -- or at least I thought I did -- by executing: apt-get remove xserver-xorg-video-nouveau which moved the packages: xserver-xorg-video-nouveau xserver-xorg-video-all Upon rebooting into bookworm, though, I still see the original problem, as described in the original post. If I look to see what driver is being used: [ZB:~] inxi -SGaz System: Kernel: 6.1.0-12-amd64 arch: x86_64 bits: 64 compiler: gcc v: 12.2.0 parameters: BOOT_IMAGE=/BOOT/debian@/vmlinuz-6.1.0-12-amd64 root=ZFS=/ROOT/debian ro root=ZFS=rpool/ROOT/debian Desktop: Trinity info: kicker wm: Twin vt: 7 dm: LightDM v: 1.26.0 Distro: Debian GNU/Linux 12 (bookworm) Graphics: Device-1: NVIDIA GF108 [GeForce GT 430] vendor: Gigabyte driver: nouveau v: kernel non-free: series: 390.xx+ status: legacy-active (EOL~late 2022) arch: Fermi code: GF1xx process: 40/28nm built: 2010-16 pcie: gen: 1 speed: 2.5 GT/s lanes: 16 ports: active: HDMI-A-1 empty: DVI-I-1,VGA-1 bus-ID: 04:00.0 chip-ID: 10de:0de1 class-ID: 0300 Display: x11 server: X.Org v: 1.21.1.7 with: Xwayland v: 22.1.9 driver: X: loaded: modesetting dri: nouveau gpu: nouveau display-ID: :0 screens: 1 Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x317mm (20.00x12.48") s-diag: 599mm (23.57") Monitor-1: HDMI-A-1 mapped: HDMI-1 model: VGA TO HDMI built: 2013 res: 1920x1080 hz: 60 dpi: 96 gamma: 1.2 size: 509x286mm (20.04x11.26") diag: 584mm (23") ratio: 16:9 modes: max: 1920x1080 min: 640x480 API: OpenGL v: 4.3 Mesa 22.3.6 renderer: NVC1 direct-render: Yes [ZB:~] So the nouveau driver still seems to be available and in use, despite being removed. My xorg.conf file currently looks like this: [ZB:~] cat /etc/X11/xorg.conf Section "ServerLayout" Identifier "X.org Configured" Screen 0 "Screen0" 0 0 Screen 1 "Screen1" RightOf "Screen0" InputDevice"Mouse0" "CorePointer" InputDevice"Keyboard0" "CoreKeyboard" EndSection Section "Files" ModulePath "/usr/lib/xorg/modules" FontPath "/usr/share/fonts/X11/misc" FontPath "/usr/share/fonts/X11/cyrillic" FontPath "/usr/share/fonts/X11/100dpi/:unscaled" FontPath "/usr/share/fonts/X11/75dpi/:unscaled" FontPath "/usr/share/fonts/X11/Type1" FontPath "/usr/share/fonts/X11/100dpi" FontPath "/usr/share/fonts/X11/75dpi" FontPath "built-ins" EndSection Section "Module" Load "glx" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5 6 7" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName"Monitor Model" EndSection Section "Monitor" Identifier "Monitor1" VendorName "Monitor Vendor" ModelName"Monitor Model" EndSection [54/136] Section "Device" ### Available Driver options are:- ### Values: : integer, : float, : "True"/"False", ### : "String", : " Hz/kHz/MHz", ### : "%" ### [arg]: arg optional #Option "SWcursor" # [] #Option "HWcursor" # [] #Option "NoAccel" # [] #Option "ShadowFB" # [] #Option "VideoKey" # #Option "WrappedFB" # [] #Option "GLXVBlank" # [] #Option "ZaphodHeads" # #Option "PageFlip" # [] #Option "SwapLimit" # #Option "AsyncUTSDFS" # [] #Option "AccelMethod" # #Option "DRI" # Identifier "Card0" # Driver "nouveau" Driver "modesetting" BusID "PCI:4:0:0" EndSection Section "Device" ### Available Driver options are:- ### Values: : integer, : float, : "True"/"False", ### : "String", : " Hz/kHz/MHz", ### : "%" ### [arg]: arg optional #Option "SWcursor" # [] #Option "kmsdev"# #Option "ShadowFB" # [] #Option "AccelMethod" #
