I implemented both of if these things very recently, so I dont think they're relevant. I will turn them off.
Sent from Proton Mail Android -------- Original Message -------- On 8/4/25 18:10, Daniel van Vugt <[email protected]> wrote: > Thanks. I can see two potential problems so far: > > 1. The 'variable-refresh-rate' experimental feature is enabled. It's not > mature and still buggy, but also probably has no effect in Xorg > sessions. Still, I recommend disabling it for now because it's known to > cause a number of bugs. > > 2. You are using fractional scaling in Xorg. This is a custom Ubuntu > patch that is known to cause image clarity problems and performance > problems. To avoid these issues I recommend choosing a scaling factor > that is a multiple of 100%, or logging into a Wayland session if you > need fractional scaling. > > If those don't solve the problem then I have more ideas but they will > require more information which can be gathered by running: > > xrandr --verbose > xrandr.txt > sudo apt install drm-info > sudo drm_info > drminfo.txt > > and then please attach the resulting text files here. > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/2119415 > > Title: > Video configuration problems: results are destroying my eyes > > Status in gnome-shell package in Ubuntu: > Incomplete > > Bug description: > I've found that nvidia-settings is not supported in Ubuntu 25.04, at least > the settings are not saved. > Resolution and refresh rate are managed in Settings\Display but I find > playing games creates remarkable eye-strain which leads to blurred vision and > I fear other vision problems longer term. > > I've found multiple accounts of people running into this and returning > to Windows. I don't see an alternative given the seriousness of my > vision problems. I've uninstalled my games and have a dual boot setup > to support gaming, but the ENTIRE reasoning for this is protecting my > eyes from Ubuntu's video implementation. > > Here is one account of someone dealing with this problem: > > https://www.reddit.com/r/linuxquestions/comments/180fav0/linux_is_killing_my_eyes_to_the_point_im_back_on/ > > Trying to keep up with Nvidia is quite the task, but given Nvidia's > place in the GPU market, it has to be done. > > Here are settings in nvidia-settings that are not supported in > Settings\Display I've tried fiddling with to reduce eye strain: > XScreen0\OpenGL Settings\Image Settings --> High Quality > XScreen0\Antialias Settings\ --> Enable FXAA > XScreen0\Antialias Settings\Anisotropic Filtering --> Override Application > Settings\16x > GPU0(Nvidia RTX4090)\DP-4(Samsung LS49AG95)\Controls\Color Space --> > YCbCr444 [does not change from RGB] > > > Root Cause: beats me. There are so many options and esoteric features > involved with GPUs and video performance, I don't have the background to try > to uncover what medically is going on, but it's clearly bad. This is a real > problem, and the consequences for Linux users are real. Driving home last > night I found all street lights had a complex, somewhat pixelated haze around > them. > > Possible Approaches: > - Reach out to Nvidia. They have the resources to dig into the medical > affects of poor video configurations. Perhaps they would fund an initiative > to support this work. > > - Review the research: > > ----here is research----- > Digital Eye Strain: A Comprehensive Review > https://link.springer.com/article/10.1007/s40123-022-00540-9 > > Management of Digital Eye Strain > https://www.tandfonline.com/doi/abs/10.1111/cxo.12798 > > Eye-related pain induced by visually demanding computer work > > https://journals.lww.com/optvissci/fulltext/2012/04000/eye_related_pain_induced_by_visually_demanding.13.aspx > > Image Modification to Reduce Eye Strain > https://link.springer.com/chapter/10.1007/978-3-030-88919-7_17 > --- > ProblemType: Bug > ApportVersion: 2.32.0-0ubuntu5.3 > Architecture: amd64 > CasperMD5CheckResult: pass > CurrentDesktop: ubuntu:GNOME > DisplayManager: gdm3 > DistroRelease: Ubuntu 25.04 > InstallationDate: Installed on 2025-04-13 (113 days ago) > InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 > (20250215) > Package: gnome-shell 48.0-1ubuntu1 > PackageArchitecture: amd64 > ProcEnviron: > LANG=en_US.UTF-8 > PATH=(custom, no user) > SHELL=/bin/bash > TERM=xterm-256color > XDG_RUNTIME_DIR=<set> > ProcVersionSignature: Ubuntu 6.14.0-27.27-generic 6.14.6 > RelatedPackageVersions: mutter-common 48.1-1ubuntu3.1 > Tags: plucky > Uname: Linux 6.14.0-27-generic x86_64 > UpgradeStatus: Upgraded to plucky on 2025-07-27 (8 days ago) > UserGroups: adm cdrom dip lpadmin plugdev sudo users > _MarkForUpload: True > > To manage notifications about this bug go to: > > https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2119415/+subscriptions > > > -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/2119415 Title: Video configuration problems: results are destroying my eyes Status in gnome-shell package in Ubuntu: Incomplete Bug description: I've found that nvidia-settings is not supported in Ubuntu 25.04, at least the settings are not saved. Resolution and refresh rate are managed in Settings\Display but I find playing games creates remarkable eye-strain which leads to blurred vision and I fear other vision problems longer term. I've found multiple accounts of people running into this and returning to Windows. I don't see an alternative given the seriousness of my vision problems. I've uninstalled my games and have a dual boot setup to support gaming, but the ENTIRE reasoning for this is protecting my eyes from Ubuntu's video implementation. Here is one account of someone dealing with this problem: https://www.reddit.com/r/linuxquestions/comments/180fav0/linux_is_killing_my_eyes_to_the_point_im_back_on/ Trying to keep up with Nvidia is quite the task, but given Nvidia's place in the GPU market, it has to be done. Here are settings in nvidia-settings that are not supported in Settings\Display I've tried fiddling with to reduce eye strain: XScreen0\OpenGL Settings\Image Settings --> High Quality XScreen0\Antialias Settings\ --> Enable FXAA XScreen0\Antialias Settings\Anisotropic Filtering --> Override Application Settings\16x GPU0(Nvidia RTX4090)\DP-4(Samsung LS49AG95)\Controls\Color Space --> YCbCr444 [does not change from RGB] Root Cause: beats me. There are so many options and esoteric features involved with GPUs and video performance, I don't have the background to try to uncover what medically is going on, but it's clearly bad. This is a real problem, and the consequences for Linux users are real. Driving home last night I found all street lights had a complex, somewhat pixelated haze around them. Possible Approaches: - Reach out to Nvidia. They have the resources to dig into the medical affects of poor video configurations. Perhaps they would fund an initiative to support this work. - Review the research: ----here is research----- Digital Eye Strain: A Comprehensive Review https://link.springer.com/article/10.1007/s40123-022-00540-9 Management of Digital Eye Strain https://www.tandfonline.com/doi/abs/10.1111/cxo.12798 Eye-related pain induced by visually demanding computer work https://journals.lww.com/optvissci/fulltext/2012/04000/eye_related_pain_induced_by_visually_demanding.13.aspx Image Modification to Reduce Eye Strain https://link.springer.com/chapter/10.1007/978-3-030-88919-7_17 --- ProblemType: Bug ApportVersion: 2.32.0-0ubuntu5.3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 25.04 InstallationDate: Installed on 2025-04-13 (113 days ago) InstallationMedia: Ubuntu 24.04.2 LTS "Noble Numbat" - Release amd64 (20250215) Package: gnome-shell 48.0-1ubuntu1 PackageArchitecture: amd64 ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-256color XDG_RUNTIME_DIR=<set> ProcVersionSignature: Ubuntu 6.14.0-27.27-generic 6.14.6 RelatedPackageVersions: mutter-common 48.1-1ubuntu3.1 Tags: plucky Uname: Linux 6.14.0-27-generic x86_64 UpgradeStatus: Upgraded to plucky on 2025-07-27 (8 days ago) UserGroups: adm cdrom dip lpadmin plugdev sudo users _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2119415/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
