[Bug 1891032] [NEW] Brightness key freeze screen
Public bug reported: When I press the KEY_BRIGHTNESSDOWN or KEY_BRIGHTNESSUP the screen freeze for a few seconds. Sometimes it up/down brightness to max/min with just one press and the overlay get stuck in the screen. Maybe useful information: # evtest Event: time 1597066500.752632, -- SYN_REPORT Event: time 1597066502.755372, type 4 (EV_MSC), code 4 (MSC_SCAN), value 86 Event: time 1597066502.755372, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 1 Event: time 1597066502.755372, -- SYN_REPORT Event: time 1597066502.761653, type 4 (EV_MSC), code 4 (MSC_SCAN), value 86 Event: time 1597066502.761653, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 0 Event: time 1597066502.761653, -- SYN_REPORT Event: time 1597066521.533682, type 4 (EV_MSC), code 4 (MSC_SCAN), value 85 Event: time 1597066521.533682, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 1 Event: time 1597066521.533682, -- SYN_REPORT Event: time 1597066521.542973, type 4 (EV_MSC), code 4 (MSC_SCAN), value 85 Event: time 1597066521.542973, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 0 $ lsb_release -rd Description:Ubuntu 20.04.1 LTS Release:20.04 ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: udev 245.4-4ubuntu3.2 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.6 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME CustomUdevRuleFiles: 70-snap.core.rules Date: Mon Aug 10 10:44:20 2020 InstallationDate: Installed on 2018-07-23 (749 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: Dell Inc. Inspiron 5558 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=c78b51e8-c664-4dd2-8020-7bc5da6f2bc0 ro quiet splash acpi_backlight=vendor vt.handoff=7 SourcePackage: systemd UpgradeStatus: Upgraded to focal on 2020-07-11 (29 days ago) dmi.bios.date: 02/02/2018 dmi.bios.vendor: Dell Inc. dmi.bios.version: A15 dmi.board.name: 0R392V dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA15:bd02/02/2018:svnDellInc.:pnInspiron5558:pvr01:rvnDellInc.:rn0R392V:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Inspiron 5558 dmi.product.sku: Inspiron 5558 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. ** Affects: systemd (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891032 Title: Brightness key freeze screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1891032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1891032] Re: Brightness key freeze screen
I removed "acpi_backlight=vendor" and didn't helped... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891032 Title: Brightness key freeze screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1891032] Re: Brightness key freeze screen
I tried apt upgrade and bios update but didn't helped $ cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=c78b51e8-c664-4dd2-8020-7bc5da6f2bc0 ro quiet splash vt.handoff=7 ** Attachment added: "dmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891032/+attachment/5401031/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891032 Title: Brightness key freeze screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1891032] Re: Brightness key freeze screen
$ ls /sys/class/backlight/ intel_backlight ** Attachment added: "acpi.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891032/+attachment/5401244/+files/acpi.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891032 Title: Brightness key freeze screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1891032] Re: Brightness key freeze screen
These 3 cause screen freeze
1. sudo acpidbg -b "e EV5 1 0" ("2 0" for brightness down)
2. sudo acpidbg -b "e \_SB.PCI0.GFX0.BRT6 1 0" ("2 0" for brightness down)
3. sudo acpidbg -b "notify \_SB.PCI0.GFX0.LCD 0x86" (0x86 for brightness down)
And these 2 don't work (tee:
/sys/class/backlight/intel_backlight/brightness: Invalid argument)
4. echo 3 | sudo tee /sys/class/backlight/intel_backlight/brightness
5. echo 6 | sudo tee /sys/class/backlight/intel_backlight/brightness
I tried 4 and 5 with root (sudo su) and without the "sudo" and returned
the same error...
I will read this wiki about backlight, thank you
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Brightness key freeze screen
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[Bug 1891032] Re: Brightness key freeze screen
This command don't cause screen freeze: echo 500 > /sys/class/backlight/intel_backlight/brightness -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891032 Title: Brightness key freeze screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1891032] Re: Brightness key freeze screen
I can control the brightness (with step up or down) using these commands: gdbus call --session --dest org.gnome.SettingsDaemon.Power --object-path /org/gnome/SettingsDaemon/Power --method org.gnome.SettingsDaemon.Power.Screen.StepUp gdbus call --session --dest org.gnome.SettingsDaemon.Power --object-path /org/gnome/SettingsDaemon/Power --method org.gnome.SettingsDaemon.Power.Screen.StepDown I was thinking of a workaround that disables the current Fn key program and I create a script that triggers these commands when I press Fn key but I don't know how to disable the current trigger -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1891032 Title: Brightness key freeze screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891032/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
