Package: linux-2.6 Version: 2.6.32-31 Severity: important Since upgrading to xserver-xorg 1.7.4, I have been unable to control the backlight of my Samsung Q45 laptop.
I originally filed this against xorg-server as #569596, but was told it is a kernel bug. /sys/class/backlight is empty. This bug is also present in version 2.6.38-3 of the kernel. -- Package-specific info: ** Kernel log: boot messages should be attached ** Model information sys_vendor: SAMSUNG ELECTRONICS CO., LTD. product_name: SQ45S70S product_version: 11ST chassis_vendor: SAMSUNG ELECTRONICS CO., LTD. chassis_version: N/A bios_vendor: Phoenix Technologies LTD bios_version: 11ST board_vendor: SAMSUNG ELECTRONICS CO., LTD. board_name: SQ45S70S board_version: ** PCI devices: 00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 03) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> Kernel driver in use: agpgart-intel 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 03) (prog-if 00 [VGA controller]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 43 Region 0: Memory at f0000000 (64-bit, non-prefetchable) [size=1M] Region 2: Memory at d0000000 (64-bit, prefetchable) [size=256M] Region 4: I/O ports at 1800 [size=8] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel driver in use: i915 00:02.1 Display controller [0380]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a03] (rev 03) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Region 0: Memory at f0100000 (64-bit, non-prefetchable) [size=1M] Capabilities: <access denied> 00:1a.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 [8086:2834] (rev 03) (prog-if 00 [UHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 16 Region 4: I/O ports at 1820 [size=32] Kernel driver in use: uhci_hcd 00:1a.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 [8086:2835] (rev 03) (prog-if 00 [UHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 21 Region 4: I/O ports at 1840 [size=32] Kernel driver in use: uhci_hcd 00:1a.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 [8086:283a] (rev 03) (prog-if 20 [EHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin C routed to IRQ 18 Region 0: Memory at f0704000 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ehci_hcd 00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 03) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 45 Region 0: Memory at f0500000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: HDA Intel 00:1c.0 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 [8086:283f] (rev 03) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=02, subordinate=02, sec-latency=0 I/O behind bridge: 00003000-00003fff Memory behind bridge: f0300000-f03fffff Prefetchable memory behind bridge: 0000000084000000-00000000841fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1c.1 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 [8086:2841] (rev 03) (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Bus: primary=00, secondary=03, subordinate=03, sec-latency=0 I/O behind bridge: 00002000-00002fff Memory behind bridge: f0200000-f02fffff Prefetchable memory behind bridge: 0000000084200000-00000000843fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> Kernel driver in use: pcieport 00:1d.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 [8086:2830] (rev 03) (prog-if 00 [UHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 23 Region 4: I/O ports at 1860 [size=32] Kernel driver in use: uhci_hcd 00:1d.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 [8086:2831] (rev 03) (prog-if 00 [UHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 19 Region 4: I/O ports at 1880 [size=32] Kernel driver in use: uhci_hcd 00:1d.2 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 [8086:2832] (rev 03) (prog-if 00 [UHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin C routed to IRQ 18 Region 4: I/O ports at 18a0 [size=32] Kernel driver in use: uhci_hcd 00:1d.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 [8086:2836] (rev 03) (prog-if 20 [EHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 23 Region 0: Memory at f0704400 (32-bit, non-prefetchable) [size=1K] Capabilities: <access denied> Kernel driver in use: ehci_hcd 00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev f3) (prog-if 01 [Subtractive decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Bus: primary=00, secondary=04, subordinate=08, sec-latency=32 I/O behind bridge: 00004000-00004fff Memory behind bridge: f0400000-f04fffff Prefetchable memory behind bridge: 0000000080000000-0000000083ffffff Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: <access denied> 00:1f.0 ISA bridge [0601]: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller [8086:2815] (rev 03) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> 00:1f.2 IDE interface [0101]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller [8086:2828] (rev 03) (prog-if 80 [Master]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin B routed to IRQ 19 Region 0: I/O ports at 01f0 [size=8] Region 1: I/O ports at 03f4 [size=1] Region 2: I/O ports at 0170 [size=8] Region 3: I/O ports at 0374 [size=1] Region 4: I/O ports at 18e0 [size=16] Region 5: I/O ports at 18d0 [size=16] Capabilities: <access denied> Kernel driver in use: ata_piix 00:1f.3 SMBus [0c05]: Intel Corporation 82801H (ICH8 Family) SMBus Controller [8086:283e] (rev 03) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin C routed to IRQ 19 Region 0: Memory at 84400000 (32-bit, non-prefetchable) [size=256] Region 4: I/O ports at 1c00 [size=32] 02:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4222] (rev 02) Subsystem: Intel Corporation PRO/Wireless 3945BG Network Connection [8086:1034] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 44 Region 0: Memory at f0300000 (32-bit, non-prefetchable) [size=4K] Capabilities: <access denied> Kernel driver in use: iwl3945 03:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8039 PCI-E Fast Ethernet Controller [11ab:4353] (rev 15) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 42 Region 0: Memory at f0200000 (64-bit, non-prefetchable) [size=16K] Region 2: I/O ports at 2000 [size=256] Capabilities: <access denied> Kernel driver in use: sky2 04:09.0 CardBus bridge [0607]: Ricoh Co Ltd RL5c476 II [1180:0476] (rev b4) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 168 Interrupt: pin A routed to IRQ 20 Region 0: Memory at f0400000 (32-bit, non-prefetchable) [size=4K] Bus: primary=04, secondary=05, subordinate=08, sec-latency=176 Memory window 0: 80000000-83fff000 (prefetchable) Memory window 1: 88000000-8bfff000 I/O window 0: 00004000-000040ff I/O window 1: 00004400-000044ff BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset- 16bInt+ PostWrite+ 16-bit legacy interface ports at 0001 Kernel driver in use: yenta_cardbus 04:09.1 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C552 IEEE 1394 Controller [1180:0552] (rev 09) (prog-if 10 [OHCI]) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 64 (500ns min, 1000ns max) Interrupt: pin B routed to IRQ 21 Region 0: Memory at f0401000 (32-bit, non-prefetchable) [size=2K] Capabilities: <access denied> Kernel driver in use: firewire_ohci 04:09.2 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 18) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 32 Interrupt: pin C routed to IRQ 22 Region 0: Memory at f0401800 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: sdhci-pci 04:09.3 System peripheral [0880]: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter [1180:0592] (rev 09) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin C routed to IRQ 255 Region 0: Memory at f0401c00 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> 04:09.4 System peripheral [0880]: Ricoh Co Ltd xD-Picture Card Controller [1180:0852] (rev 04) Subsystem: Samsung Electronics Co Ltd Device [144d:c510] Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Interrupt: pin C routed to IRQ 22 Region 0: Memory at f0402000 (32-bit, non-prefetchable) [size=256] Capabilities: <access denied> Kernel driver in use: r852 ** USB devices: Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 002: ID 0a5c:2101 Broadcom Corp. Bluetooth Controller Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 0ac8:c302 Z-Star Microelectronics Corp. Vega USB 2.0 Camera Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub -- System Information: Debian Release: 6.0.1 APT prefers stable APT policy: (550, 'stable'), (540, 'stable-updates'), (530, 'testing'), (520, 'unstable'), (400, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 2.6.38-2-amd64 (SMP w/2 CPU cores) Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages linux-image-2.6.32-5-amd64 depends on: ii debconf [debconf-2.0] 1.5.36.1 Debian configuration management sy ii initramfs-tools [linux-initra 0.98.8 tools for generating an initramfs ii linux-base 3.2 Linux image base package ii module-init-tools 3.12-1 tools for managing Linux kernel mo Versions of packages linux-image-2.6.32-5-amd64 recommends: ii firmware-linux-free 3 Binary firmware for various driver Versions of packages linux-image-2.6.32-5-amd64 suggests: pn grub | lilo <none> (no description available) pn linux-doc-2.6.32 <none> (no description available) Versions of packages linux-image-2.6.32-5-amd64 is related to: pn firmware-bnx2 <none> (no description available) pn firmware-bnx2x <none> (no description available) pn firmware-ipw2x00 <none> (no description available) pn firmware-ivtv <none> (no description available) ii firmware-iwlwifi 0.28 Binary firmware for Intel Wireless pn firmware-linux <none> (no description available) pn firmware-linux-nonfree <none> (no description available) pn firmware-qlogic <none> (no description available) pn firmware-ralink <none> (no description available) pn xen-hypervisor <none> (no description available) -- debconf information: shared/kernel-image/really-run-bootloader: true linux-image-2.6.32-5-amd64/postinst/depmod-error-initrd-2.6.32-5-amd64: false linux-image-2.6.32-5-amd64/prerm/removing-running-kernel-2.6.32-5-amd64: true linux-image-2.6.32-5-amd64/postinst/missing-firmware-2.6.32-5-amd64: linux-image-2.6.32-5-amd64/postinst/bootloader-test-error-2.6.32-5-amd64: linux-image-2.6.32-5-amd64/postinst/bootloader-error-2.6.32-5-amd64: linux-image-2.6.32-5-amd64/prerm/would-invalidate-boot-loader-2.6.32-5-amd64: true linux-image-2.6.32-5-amd64/postinst/ignoring-do-bootloader-2.6.32-5-amd64: -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". 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