Public bug reported: Hardware keys on an inspirion 3137 for brightness don't work. Manually setting the backlight via /sys/class/backlight/intel_backlight/brightness works properly. This worked properly in vivid and has been broken since upgrade.
Xev doesn't show a keypress event. Scan codes from evtest are shown below: Event: time 1416367751.898584, -------------- EV_SYN ------------ Event: time 1416367754.952917, type 4 (EV_MSC), code 4 (MSC_SCAN), value 85 Event: time 1416367754.952917, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 1 Event: time 1416367754.952917, -------------- EV_SYN ------------ Event: time 1416367754.952946, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 0 Event: time 1416367754.952946, -------------- EV_SYN ------------ Event: time 1416367756.898936, type 4 (EV_MSC), code 4 (MSC_SCAN), value 86 Event: time 1416367756.898936, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 1 Event: time 1416367756.898936, -------------- EV_SYN ------------ Event: time 1416367756.898968, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 0 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: udev 215-5ubuntu2 ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4 Uname: Linux 3.16.0-24-generic x86_64 ApportVersion: 2.14.7-0ubuntu10 Architecture: amd64 CurrentDesktop: Unity Date: Tue Nov 18 22:16:25 2014 InstallationDate: Installed on 2014-06-04 (167 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. Inspiron 3137 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic.efi.signed root=UUID=0e352344-90e9-4cbe-acde-376a88cf5b47 ro quiet splash vt.handoff=7 SourcePackage: systemd UpgradeStatus: Upgraded to vivid on 2014-06-04 (167 days ago) dmi.bios.date: 12/25/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0PRDX0 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA05:bd12/25/2013:svnDellInc.:pnInspiron3137:pvr:rvnDellInc.:rn0PRDX0:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Inspiron 3137 dmi.sys.vendor: Dell Inc. ** Affects: systemd (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug vivid ** Attachment added: "udev-db.txt" https://bugs.launchpad.net/bugs/1394063/+attachment/4263436/+files/udev-db.txt ** Description changed: - Hardware keys on an inspirion 3138 for brightness don't work. Xev - doesn't show a keypress event. + Hardware keys on an inspirion 3137 for brightness don't work. Manually setting the backlight via /sys/class/backlight/intel_backlight/brightness + works properly. This worked properly in vivid and has been broken since upgrade. - Scan codes from evtest are shown below + Xev doesn't show a keypress event. Scan codes from evtest are shown + below: Event: time 1416367751.898584, -------------- EV_SYN ------------ Event: time 1416367754.952917, type 4 (EV_MSC), code 4 (MSC_SCAN), value 85 Event: time 1416367754.952917, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 1 Event: time 1416367754.952917, -------------- EV_SYN ------------ Event: time 1416367754.952946, type 1 (EV_KEY), code 224 (KEY_BRIGHTNESSDOWN), value 0 Event: time 1416367754.952946, -------------- EV_SYN ------------ Event: time 1416367756.898936, type 4 (EV_MSC), code 4 (MSC_SCAN), value 86 Event: time 1416367756.898936, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 1 Event: time 1416367756.898936, -------------- EV_SYN ------------ Event: time 1416367756.898968, type 1 (EV_KEY), code 225 (KEY_BRIGHTNESSUP), value 0 ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: udev 215-5ubuntu2 ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4 Uname: Linux 3.16.0-24-generic x86_64 ApportVersion: 2.14.7-0ubuntu10 Architecture: amd64 CurrentDesktop: Unity Date: Tue Nov 18 22:16:25 2014 InstallationDate: Installed on 2014-06-04 (167 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. Inspiron 3137 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic.efi.signed root=UUID=0e352344-90e9-4cbe-acde-376a88cf5b47 ro quiet splash vt.handoff=7 SourcePackage: systemd UpgradeStatus: Upgraded to vivid on 2014-06-04 (167 days ago) dmi.bios.date: 12/25/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A05 dmi.board.name: 0PRDX0 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA05:bd12/25/2013:svnDellInc.:pnInspiron3137:pvr:rvnDellInc.:rn0PRDX0:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Inspiron 3137 dmi.sys.vendor: Dell Inc. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1394063 Title: Inspiron 3137 brightness keys aren't recognized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1394063/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs