[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
** Changed in: mutter (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
Setting "max bpc" to 8 didn't solve the problem, unfortunately. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
Sorry my mistake. The minimum value of "max bpc" for your HDMI-2 is 8, as mentioned in the attachment in comment #4. Please use that in a Xorg session and tell us if that solves the problem at 1920x1080: xrandr --output HDMI-2 --set "max bpc" 8 Although you can't change the setting in a Wayland session, you can change it in Xorg and then log out and into a Wayland session and the kernel should remember the same setting. A proper solution is coming in: https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2412 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
Sorry, I forgot to add that I did all of those actions in Xorg session. Xrandr wouldn't let me change output settings If I was in Wayland session. Unfortunately, changing max bpc to 6 under Xorg session didn't give an effect - screen is still flickering, although not so violently. I tried to change it to lower numbers, such as 3, but no luck either. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
** Tags added: bandwidth -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
Or even try: xrandr --output HDMI-2 --set "max bpc" 6 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
Please also follow the instructions in comment #10, remembering to log into 'Ubuntu on Xorg' first. I'm hoping that will allow you to maintain a stable 1920x1080 60Hz signal. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
1. Yes, reducing resolution of the external monitor (1440 x 900, to be exact) fixed the issue. 2. I typed that in the terminal and issue persisted. 3. Unfortunately, my laptop doesn't support USB-C DisplayPort (i've tried with my friend's 2K monitor with DisplayPort to USB-C cable and the monitor wasn't receiving any signal), and changing refresh rate to bearable numbers (like 50Hz) didn't help. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
See also bug 1929209 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
Please also try this in a Xorg session: xrandr --output HDMI-2 --set "max bpc" 8 If that fixes the problem then you should subscribe to https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2412 -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
[Bug 1975872] Re: [ASUS GL552VW] Loss of signal (black screen) on external monitor
Without mirroring, please try reducing the resolution of the external monitor. Does that stop the flicker? ** Summary changed: - [ASUS GL552VW] Screen flickering on external monitor + [ASUS GL552VW] Loss of signal (black screen) on external monitor -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1975872 Title: [ASUS GL552VW] Loss of signal (black screen) on external monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1975872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
