[Bug 215835] EC: No SCIs detectable from brightness hotkeys (ideapad 5 15ITL05)
https://bugzilla.kernel.org/show_bug.cgi?id=215835 Zhang Rui (rui.zh...@intel.com) changed: What|Removed |Added Status|NEW |NEEDINFO CC||rui.zh...@intel.com --- Comment #4 from Zhang Rui (rui.zh...@intel.com) --- can you get a SCI (ACPI interrupt) when pressing the hotkey? if yes, can you get an EC GPE when pressing the hotkey? -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 215835] EC: No SCIs detectable from brightness hotkeys (ideapad 5 15ITL05)
https://bugzilla.kernel.org/show_bug.cgi?id=215835 --- Comment #3 from Johannes P (johannes.pens...@gmail.com) --- When pressing the brightness keys in Windows, the value read out from the B9 register does not change. To me, it looks like the EC tries to control the backlight itself, and there must be some way to enable "ACPI mode" for it to generate ACPI events instead. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 215835] EC: No SCIs detectable from brightness hotkeys (ideapad 5 15ITL05)
https://bugzilla.kernel.org/show_bug.cgi?id=215835 --- Comment #2 from Johannes P (johannes.pens...@gmail.com) --- Calling the brightness EC query method directly through the kernel ACPI debugger does not result in a change in value for the aforementioned register at B9. It appears to be dependent on a key press. Maybe it's also worth mentioning that when calling _Q11/_Q12, my trace wasn't able to pick up anything from GFX0.DD1F. - debug \_SB.PC00.LPCB.EC0._Q12 Evaluating \_SB.PC00.LPCB.EC0._Q12 AML Opcode: 0070 Store % ArgObj: 0dee6495 Name P80B RegionField 52e7b4ee ArgObj: 8674c39aInteger 0012 ResultObj: 8674c39aInteger 0012 AML Opcode: 0086 Notify % ArgObj: 73452c4bInteger 0086 ArgObj: f420e657 Name DD1F Device AML Opcode: 0086 Notify % ArgObj: 73452c4bInteger 0080 ArgObj: 72854c9d Name VPC0 Device Evaluation of \_SB.PC00.LPCB.EC0._Q12 returned object 1a14f500, external buffer length 18 [Integer] = 0012 [ 1731.602892] extrace-0138 ex_trace_point: Method Begin [0xbd1e9420:\_SB.PC00.LPCB.EC0.VPC0.VPCW] execution. [ 1731.604041] extrace-0138 ex_trace_point: Method End [0xbd1e9420:\_SB.PC00.LPCB.EC0.VPC0.VPCW] execution. [ 1731.604067] extrace-0138 ex_trace_point: Method Begin [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. [ 1731.604890] extrace-0138 ex_trace_point: Method End [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. [ 1731.604917] extrace-0138 ex_trace_point: Method Begin [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. [ 1731.605023] extrace-0138 ex_trace_point: Method End [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. [ 1731.605037] extrace-0138 ex_trace_point: Method Begin [0xbd1e9420:\_SB.PC00.LPCB.EC0.VPC0.VPCW] execution. [ 1731.605752] extrace-0138 ex_trace_point: Method End [0xbd1e9420:\_SB.PC00.LPCB.EC0.VPC0.VPCW] execution. [ 1731.605766] extrace-0138 ex_trace_point: Method Begin [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. [ 1731.606439] extrace-0138 ex_trace_point: Method End [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. [ 1731.606464] extrace-0138 ex_trace_point: Method Begin [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. [ 1731.606555] extrace-0138 ex_trace_point: Method End [0x0372cbfe:\_SB.PC00.LPCB.EC0.VPC0.VPCR] execution. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 215835] EC: No SCIs detectable from brightness hotkeys (ideapad 5 15ITL05)
https://bugzilla.kernel.org/show_bug.cgi?id=215835 --- Comment #1 from Johannes P (johannes.pens...@gmail.com) --- # ./ec -r -s 1 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00: 00 01 00 00 00 00 00 00 00 00 00 00 00 00 29 00 10: 00 00 80 00 01 00 65 04 00 01 9a 20 00 02 00 00 20: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 8d 52 00 00 50: 00 00 00 31 00 00 2d 00 00 00 00 00 00 00 00 00 60: 00 80 02 03 02 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 08 00 00 00 80 00 96 00 20 01 00 4c 90: 47 43 00 32 30 31 39 00 4c 31 39 4c 34 50 46 31 A0: 00 01 00 80 00 00 c0 00 00 00 00 00 00 15 00 00 B0: 2d 2e 00 29 00 23 00 29 02 0d 04 00 00 00 11 00 C0: 30 02 99 1b 33 05 36 43 10 3b 58 1b 9b 1b 64 00 D0: c0 02 e2 02 00 00 00 23 31 0c 0b 00 00 00 00 00 E0: 00 00 00 00 00 00 00 00 00 00 00 00 13 00 43 00 F0: 01 00 00 00 90 51 80 43 00 00 00 00 00 00 00 00 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00: 00 01 00 00 00 00 00 00 00 00 00 00 00 00 29 00 10: 00 00 80 00 01 00 65 04 00 01 9a 20 00 02 00 00 20: 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40: 00 00 00 00 00 00 00 00 00 00 00 00 8d 52 00 00 50: 00 00 00 31 00 00 2d 00 00 00 00 00 00 00 00 00 60: 00 80 02 03 02 00 00 00 00 00 00 00 00 00 00 00 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 00 00 00 00 08 00 00 00 80 00 96 00 20 01 00 4c 90: 47 43 00 32 30 31 39 00 4c 31 39 4c 34 50 46 31 A0: 00 01 00 80 00 00 c0 00 00 00 00 00 00 15 00 00 B0: 2d *2f 00 29 00 23 00 29 02 *0e 04 00 00 00 11 00 C0: 30 02 99 1b 33 05 36 43 10 3b 58 1b 9b 1b 64 00 D0: *be 02 e2 02 00 00 00 23 31 0c 0b 00 00 00 00 00 E0: 00 00 00 00 00 00 00 00 00 00 00 00 13 00 43 00 F0: 01 00 00 00 90 51 80 43 00 00 00 00 00 00 00 00 With the kernel EC debug tool, it is possible to detect a register change at B9 when pressing the brightness keys. This value is increased/decreased by pressing the appropriate key, in a range from 0x00 to 0x0F. If I understand the ACPI specification correctly, the EC is supposed to send out an interrupt in order for the OS to query the EC and pick up the brightness event. However, after checking each ACPI debug layer individually at max verbosity, there seems to be no output whatsoever generated by a key press. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
[Bug 215835] EC: No SCIs detectable from brightness hotkeys (ideapad 5 15ITL05)
https://bugzilla.kernel.org/show_bug.cgi?id=215835 Johannes P (johannes.pens...@gmail.com) changed: What|Removed |Added Summary|Linux does not pick up EC |EC: No SCIs detectable from |queries from brightness |brightness hotkeys (ideapad |hotkeys (ideapad 5 15ITL05) |5 15ITL05) -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug. ___ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
