Package: acpi Version: 1.7-1+b1 Severity: important Dear Maintainer,
after upgrading from Jessie to Stretch I see lots of ACPI error messages on boot (also in dmesg logs): [ 8.518584] ACPI Error: Needed [Buffer/String/Package], found [Integer] ffff98652c4c3708 (20160831/exresop-594) [ 8.518642] ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20160831/dswexec-461) [ 8.518699] ACPI Error: Method parse/execution failed [\_SB.WMIV.WVPO] (Node ffff98652e8a7aa0), AE_AML_OPERAND_TYPE (20160831/psparse-543) [ 8.518768] ACPI Error: Method parse/execution failed [\_SB.WMIV.WMPV] (Node ffff98652e8a74b0), AE_AML_OPERAND_TYPE (20160831/psparse-543) [ 8.520045] ACPI Error: Needed [Buffer/String/Package], found [Integer] ffff98652c4c3120 (20160831/exresop-594) [ 8.520101] ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20160831/dswexec-461) [ 8.520158] ACPI Error: Method parse/execution failed [\_SB.WMIV.WVPO] (Node ffff98652e8a7aa0), AE_AML_OPERAND_TYPE (20160831/psparse-543) [ 8.520227] ACPI Error: Method parse/execution failed [\_SB.WMIV.WMPV] (Node ffff98652e8a74b0), AE_AML_OPERAND_TYPE (20160831/psparse-543) [ 8.521206] ACPI Error: Needed [Buffer/String/Package], found [Integer] ffff98652c4c3c18 (20160831/exresop-594) [ 8.521257] ACPI Exception: AE_AML_OPERAND_TYPE, While resolving operands for [OpcodeName unavailable] (20160831/dswexec-461) [ 8.521313] ACPI Error: Method parse/execution failed [\_SB.WMIV.WVPO] (Node ffff98652e8a7aa0), AE_AML_OPERAND_TYPE (20160831/psparse-543) [ 8.521380] ACPI Error: Method parse/execution failed [\_SB.WMIV.WMPV] (Node ffff98652e8a74b0), AE_AML_OPERAND_TYPE (20160831/psparse-543) [ 8.523824] ACPI Error: Attempt to CreateField of length zero (20160831/dsopcode-168) [ 8.523869] ACPI Error: Method parse/execution failed [\_SB.WMIV.WVPI] (Node ffff98652e8a72d0), AE_AML_OPERAND_VALUE (20160831/psparse-543) [ 8.523939] ACPI Error: Method parse/execution failed [\_SB.WMIV.WMPV] (Node ffff98652e8a74b0), AE_AML_OPERAND_VALUE (20160831/psparse-543) Suspend also seems broken. If I suspend the machine by pressing power button then it seems to suspend correctly but upon waking up the screen is not turned on. Sometimes suspending again (via power button) and waking again will turn the screen on, sometime it will reset the computer, sometimes it will have no effect. Neither of these problems existed on Jessie. -- System Information: Debian Release: 9.0 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-3-amd64 (SMP w/8 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages acpi depends on: ii libc6 2.24-11+deb9u1 acpi recommends no packages. acpi suggests no packages. -- no debconf information
