Hi, I'm unable to adjust brightness on this system: Lenovo Thinkpad Edge E145 with AMD A4-5000 APU Xubuntu 14.04 Trusty Tahr with 3.13.0-17-generic Using videodriver fglrx-13.35(same problem with mesa). Dmesg shows this message at boot: [ 0.517202] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness [ 0.517245] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness [ 3.078471] [Firmware Bug]: ACPI: No _BQC method, cannot determine initial brightness [ 3.386730] thinkpad_acpi: Unsupported brightness interface, please contact ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx [ 3.404593] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver [ 3.404596] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default... lspci shows this: 00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Root Complex 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kabini [Radeon HD 8330] 00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 9840 00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Function 0 00:02.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1 00:02.3 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1 00:02.5 PCI bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Functions 5:1 00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 01) 00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] 00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 39) 00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39) 00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 39) 00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 39) 00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 3a) 00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 02) 00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11) 00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Function 0 00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Function 1 00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Function 2 00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Function 3 00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Function 4 00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 16h Processor Function 5 01:00.0 Network controller: Broadcom Corporation BCM43228 802.11a/b/g/n 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07) 04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01) lsmod: Module Size Used by michael_mic 12612 8 arc4 12608 4 joydev 17381 0 ip6t_REJECT 12939 1 xt_hl 12521 6 ip6t_rt 13537 3 nf_conntrack_ipv6 18894 8 nf_defrag_ipv6 34768 1 nf_conntrack_ipv6 ipt_REJECT 12541 1 xt_LOG 17717 10 xt_limit 12711 13 xt_tcpudp 12884 26 xt_addrtype 12635 4 rfcomm 69160 12 nf_conntrack_ipv4 15012 8 nf_defrag_ipv4 12758 1 nf_conntrack_ipv4 amd_freq_sensitivity 12589 0 bnep 19624 2 xt_conntrack 12760 16 kvm 451519 0 ip6table_filter 12815 1 ip6_tables 27025 1 ip6table_filter crct10dif_pclmul 14289 0 btusb 32412 0 nf_conntrack_netbios_ns 12665 0 nf_conntrack_broadcast 12589 1 nf_conntrack_netbios_ns crc32_pclmul 13113 0 ghash_clmulni_intel 13259 0 nf_nat_ftp 12770 0 nf_nat 21798 1 nf_nat_ftp nf_conntrack_ftp 18638 1 nf_nat_ftp aesni_intel 55624 0 nf_conntrack 96976 8 nf_nat_ftp,nf_conntrack_netbios_ns,nf_nat,xt_conntrack,nf_conntrack_broadcast,nf_conntrack_ftp,nf_conntrack_ipv4,nf_conntrack_ipv6 bluetooth 395423 22 bnep,btusb,rfcomm aes_x86_64 17131 1 aesni_intel iptable_filter 12810 1 lrw 13286 1 aesni_intel uvcvideo 80885 0 gf128mul 14951 1 lrw videobuf2_vmalloc 13216 1 uvcvideo ip_tables 27239 1 iptable_filter x_tables 34059 13 ip6table_filter,xt_hl,ip_tables,xt_tcpudp,xt_limit,xt_conntrack,xt_LOG,iptable_filter,ip6t_rt,ipt_REJECT,ip6_tables,xt_addrtype,ip6t_REJECT snd_hda_codec_realtek 61356 1 videobuf2_memops 13362 1 videobuf2_vmalloc videobuf2_core 40664 1 uvcvideo glue_helper 13990 1 aesni_intel ablk_helper 13597 1 aesni_intel cryptd 20359 3 ghash_clmulni_intel,aesni_intel,ablk_helper videodev 134688 2 uvcvideo,videobuf2_core lib80211_crypt_tkip 17619 0 snd_hda_codec_hdmi 46207 1 fglrx 8081247 140 snd_hda_intel 52355 10 thinkpad_acpi 80817 1 snd_hda_codec 192906 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel nvram 14411 1 thinkpad_acpi psmouse 101945 0 snd_hwdep 13602 1 snd_hda_codec serio_raw 13462 0 snd_pcm 102099 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel wl 4207846 0 fam15h_power 13119 0 snd_seq_midi 13324 0 k10temp 13126 0 nfsd 280297 2 snd_seq_midi_event 14899 1 snd_seq_midi edac_core 62291 0 edac_mce_amd 22617 0 auth_rpcgss 59338 1 nfsd nfs_acl 12837 1 nfsd snd_page_alloc 18710 2 snd_pcm,snd_hda_intel snd_rawmidi 30144 1 snd_seq_midi nfs 236636 0 i2c_piix4 22155 0 lockd 93977 2 nfs,nfsd sunrpc 284404 6 nfs,nfsd,auth_rpcgss,lockd,nfs_acl lib80211 14381 2 wl,lib80211_crypt_tkip fscache 63988 1 nfs snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi rtsx_pci_ms 18151 0 memstick 16966 1 rtsx_pci_ms snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi snd_timer 29482 2 snd_pcm,snd_seq cfg80211 490477 1 wl snd 69238 32 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,thinkpad_acpi,snd_seq_device,snd_seq_midi amd_iommu_v2 19054 1 fglrx soundcore 12680 1 snd wmi 19177 0 video 19421 0 mac_hid 13205 0 lp 17759 0 parport 42348 1 lp rtsx_pci_sdmmc 23274 0 ahci 25819 1 libahci 32168 1 ahci r8169 67581 0 rtsx_pci 45956 2 rtsx_pci_ms,rtsx_pci_sdmmc mii 13934 1 r8169 I added acpi_brightness=vendor as boot parameter, but it didnt do anything but disable the brightness adjust keys which worked before, but didnt change brightness. Greetings Vegard ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel