https://bugzilla.novell.com/show_bug.cgi?id=848642 https://bugzilla.novell.com/show_bug.cgi?id=848642#c1 Dominique Leuenberger changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO CC| |dimstar@opensuse.org InfoProvider| |mustafaa.alhamdaani@gmail.c | |om --- Comment #1 from Dominique Leuenberger 2013-11-23 13:18:14 UTC --- Potentially a DUP of bug 850137 (which was failed later, but at this moment has more information). Mustafa: what Desktop Environment are you using? What Window Manager? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=848642 https://bugzilla.novell.com/show_bug.cgi?id=848642#c3 Mustafa Muhammad changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|mustafaa.alhamdaani@gmail.c | |om | --- Comment #3 from Mustafa Muhammad 2014-03-12 05:54:28 UTC --- (In reply to comment #1)

Potentially a DUP of bug 850137 (which was failed later, but at this moment has more information).

Mustafa: what Desktop Environment are you using? What Window Manager?

KDE and kwin (tried other configurations, same problem) (In reply to comment #2)

Try to pass acpi_backlight=vendor boot option. Many recent laptops have a broken ACPI backlight control since Windows 8 doesn't use it any longer.

acpi_backlight=vendor fixes the problem, why it is not default? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

https://bugzilla.novell.com/show_bug.cgi?id=848642 https://bugzilla.novell.com/show_bug.cgi?id=848642#c5 --- Comment #5 from Mustafa Muhammad 2014-03-12 10:29:20 UTC --- (In reply to comment #4)

(In reply to comment #3)

...

(In reply to comment #2)

...

Try to pass acpi_backlight=vendor boot option. Many recent laptops have a broken ACPI backlight control since Windows 8 doesn't use it any longer.

acpi_backlight=vendor fixes the problem, why it is not default?

Because this option breaks many other laptops :)

The upstream 3.14 kernel has some relevant fix, but it's applied per DMI-basis. For checking whether it covers your machine, try the latest 3.14-rc kernel (e.g. from OBS Kernel:HEAD). If it doesn't work without the option, we need to report to upstream, either in Kernel Bugzilla or LKML. In that case, please provide the output of dmidecode.

I am using 3.14 rc in Fedora rawhide, and the same problem exist here. this is dmidecode output [root@localhost mustafa]# dmidecode # dmidecode 2.12 # SMBIOS entry point at 0xa93ef598 SMBIOS 2.7 present. 31 structures occupying 1463 bytes. Table at 0xA9C11000. Handle 0x000B, DMI type 0, 24 bytes BIOS Information Vendor: Hewlett-Packard Version: 68IRR Ver. F.43 Release Date: 10/07/2013 Address: 0xF0000 Runtime Size: 64 kB ROM Size: 5120 kB Characteristics: PCI is supported PC Card (PCMCIA) is supported BIOS is upgradeable BIOS shadowing is allowed Boot from CD is supported Selectable boot is supported EDD is supported Print screen service is supported (int 5h) 8042 keyboard services are supported (int 9h) Serial services are supported (int 14h) Printer services are supported (int 17h) ACPI is supported USB legacy is supported Smart battery is supported BIOS boot specification is supported Function key-initiated network boot is supported Targeted content distribution is supported UEFI is supported BIOS Revision: 15.67 Firmware Revision: 88.32 Handle 0x000C, DMI type 1, 27 bytes System Information Manufacturer: Hewlett-Packard Product Name: HP ProBook 4540s Version: A1008C11 Serial Number: 2CE22811M7 UUID: 43D45CB9-CA7E-11E1-A723-50C459000023 Wake-up Type: Power Switch SKU Number: B7A59EA#ABV Family: 103C_5336AN G=N L=BUS B=HP S=PRO Handle 0x000D, DMI type 2, 16 bytes Base Board Information Manufacturer: Hewlett-Packard Product Name: 17F6 Version: KBC Version 58.20 Serial Number: PCWBF1A2F2W4X5 Asset Tag: Not Specified Features: Board is a hosting board Board is replaceable Location In Chassis: Chassis Handle: 0x000E Type: Unknown Contained Object Handles: 0 Handle 0x000E, DMI type 3, 17 bytes Chassis Information Manufacturer: Hewlett-Packard Type: Notebook Lock: Not Present Version: Not Specified Serial Number: 2CE22811M7 Asset Tag: Boot-up State: Safe Power Supply State: Safe Thermal State: Other Security Status: Other OEM Information: 0x00000000 Handle 0x0000, DMI type 4, 42 bytes Processor Information Socket Designation: U3E1 Type: Central Processor Family: Core i5 Manufacturer: Intel(R) Corporation ID: A7 06 02 00 FF FB EB BF Signature: Type 0, Family 6, Model 42, Stepping 7 Flags: FPU (Floating-point unit on-chip) VME (Virtual mode extension) DE (Debugging extension) PSE (Page size extension) TSC (Time stamp counter) MSR (Model specific registers) PAE (Physical address extension) MCE (Machine check exception) CX8 (CMPXCHG8 instruction supported) APIC (On-chip APIC hardware supported) SEP (Fast system call) MTRR (Memory type range registers) PGE (Page global enable) MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table) PSE-36 (36-bit page size extension) CLFSH (CLFLUSH instruction supported) DS (Debug store) ACPI (ACPI supported) MMX (MMX technology supported) FXSR (FXSAVE and FXSTOR instructions supported) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop) HTT (Multi-threading) TM (Thermal monitor supported) PBE (Pending break enabled) Version: Intel(R) Core(TM) i5-2450M CPU @ 2.50GHz Voltage: 1.2 V External Clock: 100 MHz Max Speed: 4000 MHz Current Speed: 2500 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: 0x0002 L2 Cache Handle: 0x0003 L3 Cache Handle: 0x0004 Serial Number: To Be Filled By O.E.M. Asset Tag: To Be Filled By O.E.M. Part Number: Not Specified Core Count: 2 Core Enabled: 2 Thread Count: 4 Characteristics: 64-bit capable Handle 0x0001, DMI type 7, 19 bytes Cache Information Socket Designation: Unknown Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Through Location: Internal Installed Size: 32 kB Maximum Size: 32 kB Supported SRAM Types: Unknown Installed SRAM Type: Unknown Speed: Unknown Error Correction Type: Parity System Type: Data Associativity: 8-way Set-associative Handle 0x0002, DMI type 7, 19 bytes Cache Information Socket Designation: Unknown Configuration: Enabled, Not Socketed, Level 1 Operational Mode: Write Through Location: Internal Installed Size: 32 kB Maximum Size: 32 kB Supported SRAM Types: Unknown Installed SRAM Type: Unknown Speed: Unknown Error Correction Type: Parity System Type: Instruction Associativity: 8-way Set-associative Handle 0x0003, DMI type 7, 19 bytes Cache Information Socket Designation: Unknown Configuration: Enabled, Not Socketed, Level 2 Operational Mode: Write Through Location: Internal Installed Size: 256 kB Maximum Size: 256 kB Supported SRAM Types: Unknown Installed SRAM Type: Unknown Speed: Unknown Error Correction Type: Multi-bit ECC System Type: Unified Associativity: 8-way Set-associative Handle 0x0004, DMI type 7, 19 bytes Cache Information Socket Designation: Unknown Configuration: Enabled, Not Socketed, Level 3 Operational Mode: Write Back Location: Internal Installed Size: 3072 kB Maximum Size: 3072 kB Supported SRAM Types: Unknown Installed SRAM Type: Unknown Speed: Unknown Error Correction Type: Multi-bit ECC System Type: Unified Associativity: 12-way Set-associative Handle 0x0013, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: Ctrl0Port0 Internal Connector Type: SAS/SATA Plug Receptacle External Reference Designator: Primary HDD Bay External Connector Type: SAS/SATA Plug Receptacle Port Type: SATA Handle 0x0014, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: Ctrl0Port5 Internal Connector Type: SAS/SATA Plug Receptacle External Reference Designator: Docking Station Upgrade Bay External Connector Type: SAS/SATA Plug Receptacle Port Type: SATA Handle 0x0015, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: Ctrl0Port4 Internal Connector Type: SAS/SATA Plug Receptacle External Reference Designator: eSATA External Connector Type: SAS/SATA Plug Receptacle Port Type: SATA Handle 0x0016, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: Ctrl0Port3 Internal Connector Type: SAS/SATA Plug Receptacle External Reference Designator: Docking Station eSATA External Connector Type: SAS/SATA Plug Receptacle Port Type: SATA Handle 0x0017, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: Ctrl0Port2 Internal Connector Type: SAS/SATA Plug Receptacle External Reference Designator: mSATA External Connector Type: SAS/SATA Plug Receptacle Port Type: SATA Handle 0x0018, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: Ctrl0Port1 Internal Connector Type: SAS/SATA Plug Receptacle External Reference Designator: Upgrade Bay External Connector Type: SAS/SATA Plug Receptacle Port Type: SATA Handle 0x001A, DMI type 9, 13 bytes System Slot Information Designation: PCI SLOT1 Type: 32-bit PCI Current Usage: Available Length: Long ID: 1 Characteristics: 3.3 V is provided PME signal is supported SMBus signal is supported Handle 0x0010, DMI type 10, 6 bytes On Board Device Information Type: Video Status: Enabled Description: 64 Handle 0x0019, DMI type 11, 5 bytes OEM Strings String 1: ABS 70/71 79 7A 7B 7C String 2: CSM v01.55 String 3: HP_Mute_LED_0_0 String 4: www.hp.com Handle 0x001D, DMI type 13, 22 bytes BIOS Language Information Language Description Format: Abbreviated Installable Languages: 14 en-US da-DK nl-NL fi-FI fr-FR de-DE it-IT ja-JP no-NO pt-PT es-ES sv-SE zh-CN zh-TW Currently Installed Language: en-US Handle 0x0005, DMI type 16, 23 bytes Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 16 GB Error Information Handle: Not Provided Number Of Devices: 2 Handle 0x0006, DMI type 17, 34 bytes Memory Device Array Handle: 0x0005 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: SODIMM Set: None Locator: Bottom-Slot 1(top) Bank Locator: BANK 0 Type: DDR3 Type Detail: Synchronous Speed: 1333 MHz Manufacturer: 0000 Serial Number: 00000000 Asset Tag: 9876543210 Part Number: Not Specified Rank: Unknown Configured Clock Speed: Unknown Handle 0x0008, DMI type 17, 34 bytes Memory Device Array Handle: 0x0005 Error Information Handle: Not Provided Total Width: Unknown Data Width: Unknown Size: No Module Installed Form Factor: DIMM Set: None Locator: Bottom-Slot 2(under) Bank Locator: BANK 2 Type: Unknown Type Detail: None Speed: Unknown Manufacturer: Not Specified Serial Number: Not Specified Asset Tag: 9876543210 Part Number: Not Specified Rank: Unknown Configured Clock Speed: Unknown Handle 0x0009, DMI type 19, 31 bytes Memory Array Mapped Address Starting Address: 0x00000000000 Ending Address: 0x001FFFFFFFF Range Size: 8 GB Physical Array Handle: 0x0005 Partition Width: 2 Handle 0x0007, DMI type 20, 35 bytes Memory Device Mapped Address Starting Address: 0x00000000000 Ending Address: 0x001FFFFFFFF Range Size: 8 GB Physical Device Handle: 0x0006 Memory Array Mapped Address Handle: 0x0009 Partition Row Position: 1 Interleave Position: 1 Interleaved Data Depth: 1 Handle 0x001B, DMI type 22, 26 bytes Portable Battery Location: Primary Manufacturer: 13-24 Name: PR06047 Design Capacity: 47520 mWh Design Voltage: 10800 mV SBDS Version: 1.1 Maximum Error: Unknown SBDS Serial Number: 6465 SBDS Manufacture Date: 2012-06-01 SBDS Chemistry: LION OEM-specific Information: 0x00000000 Handle 0x000F, DMI type 32, 20 bytes System Boot Information Status: No errors detected Handle 0x0011, DMI type 41, 11 bytes Onboard Device Reference Designation: 64 Type: Video Status: Enabled Type Instance: 1 Bus Address: 0000:00:02.0 Handle 0x0012, DMI type 41, 11 bytes Onboard Device Reference Designation: WLAN Type: Ethernet Status: Enabled Type Instance: 1 Bus Address: 0000:04:00.0 Handle 0x000A, DMI type 131, 64 bytes OEM-specific Type Header and Data: 83 40 0A 00 10 00 00 00 00 00 00 00 00 00 00 00 F8 00 59 1E FF FF FF FF 01 20 00 00 00 00 08 00 B8 05 0A 00 00 00 00 00 E5 24 FF FF 00 00 00 00 04 01 00 00 00 00 00 00 76 50 72 6F 00 00 00 00 Handle 0x001C, DMI type 137, 12 bytes OEM-specific Type Header and Data: 89 0C 1C 00 01 00 F0 03 F0 FF 00 00 Handle 0xFFFD, DMI type 127, 4 bytes End Of Table [root@localhost mustafa]# uname -a Linux localhost.localdomain 3.14.0-0.rc5.git2.1.fc21.x86_64 #1 SMP Thu Mar 6 12:57:31 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=848642 Jiri Slaby changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mustafaa.alhamdaani@gmail.c | |om Flags| |needinfo?(mustafaa.alhamdaa | |ni@gmail.com) --- Comment #6 from Jiri Slaby --- Created attachment 614377 --> http://bugzilla.novell.com/attachment.cgi?id=614377&action=edit fix Does it still happen? If so, this patch should be worth trying... -- You are receiving this mail because: You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=848642 --- Comment #8 from Mustafa Muhammad --- (In reply to Jiri Slaby from comment #6)

Created attachment 614377 [details] fix

Does it still happen? If so, this patch should be worth trying...

It doesn't happen in newer kernels (openSUSE 13.2 and Tumbleweed), now I installed 13.1 again but I don't know how to apply this patch :) -- You are receiving this mail because: You are on the CC list for the bug.