Description of problem: After upgraded fedora 17 to kernel 3.4 I'm no longer able to change the screen brightness. Version-Release number of selected component (if applicable): kde 4.8.3 3.4.0-1.fc17.x86_64 hp pavillion dm3
What video chipset/driver are you using? Including the output of lsmod and lspci may help.
Oh, and you mentioned 3.4 broke stuff, which kernel versions worked ok (all those < 3.4)?
lsmod: Module Size Used by fuse 77898 4 fcoe 27326 0 libfcoe 47211 1 fcoe 8021q 24234 0 libfc 112807 2 fcoe,libfcoe garp 14087 1 8021q scsi_transport_fc 58175 2 fcoe,libfc scsi_tgt 19553 1 scsi_transport_fc stp 12823 1 garp llc 14045 2 stp,garp be2iscsi 72520 0 iscsi_boot_sysfs 15641 1 be2iscsi bnx2i 54642 0 cnic 62653 1 bnx2i uio 19074 1 cnic cxgb4i 32879 0 cxgb4 103198 1 cxgb4i cxgb3i 32950 0 cxgb3 155630 1 cxgb3i mdio 13398 1 cxgb3 libcxgbi 56518 2 cxgb3i,cxgb4i ib_iser 37855 0 rdma_cm 42026 1 ib_iser ib_addr 13745 1 rdma_cm iw_cm 18221 1 rdma_cm ip6t_REJECT 12939 2 ib_cm 41725 1 rdma_cm ib_sa 28484 2 rdma_cm,ib_cm ib_mad 46340 2 ib_cm,ib_sa ib_core 73894 6 rdma_cm,ib_cm,ib_sa,iw_cm,ib_mad,ib_iser nf_conntrack_ipv6 14341 1 nf_defrag_ipv6 18095 1 nf_conntrack_ipv6 nf_conntrack_ipv4 14744 1 rfcomm 68791 8 nf_defrag_ipv4 12673 1 nf_conntrack_ipv4 iscsi_tcp 18333 0 libiscsi_tcp 24128 4 cxgb3i,cxgb4i,iscsi_tcp,libcxgbi libiscsi 50542 8 libiscsi_tcp,bnx2i,cxgb3i,cxgb4i,be2iscsi,iscsi_tcp,ib_iser,libcxgbi scsi_transport_iscsi 57490 8 bnx2i,be2iscsi,iscsi_tcp,ib_iser,libcxgbi,libiscsi ip6table_filter 12815 1 xt_state 12578 2 nf_conntrack 83451 3 xt_state,nf_conntrack_ipv4,nf_conntrack_ipv6 bnep 19584 2 ip6_tables 26942 1 ip6table_filter nvidia 12344969 34 uvcvideo 76472 0 snd_hda_codec_hdmi 36103 4 videobuf2_vmalloc 12967 1 uvcvideo videobuf2_memops 13354 1 videobuf2_vmalloc videobuf2_core 31992 1 uvcvideo videodev 106926 1 uvcvideo media 20444 2 uvcvideo,videodev btusb 23835 0 bluetooth 298920 24 bnep,btusb,rfcomm snd_hda_codec_idt 70342 1 snd_hda_intel 33277 2 snd_hda_codec 121042 3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel snd_hwdep 17650 1 snd_hda_codec snd_pcm 97321 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel snd_page_alloc 18101 2 snd_pcm,snd_hda_intel arc4 12529 2 ath9k 131114 0 ath9k_common 13602 1 ath9k ath9k_hw 389899 2 ath9k_common,ath9k ath 23103 3 ath9k_common,ath9k,ath9k_hw snd_timer 28690 1 snd_pcm mac80211 497449 1 ath9k r8169 61153 0 coretemp 13444 0 i2c_i801 17779 0 cfg80211 187660 3 ath,ath9k,mac80211 microcode 23435 0 hp_accel 25976 0 hp_wmi 18048 0 snd 79242 11 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_hda_codec,snd_hda_intel iTCO_wdt 17948 0 iTCO_vendor_support 13419 1 iTCO_wdt mii 13527 1 r8169 i2c_core 38028 3 i2c_i801,nvidia,videodev sparse_keymap 13526 1 hp_wmi rfkill 21384 5 cfg80211,hp_wmi,bluetooth lis3lv02d 19487 1 hp_accel soundcore 14491 1 snd input_polldev 13646 1 lis3lv02d nfsd 280997 13 nfs_acl 12741 1 nfsd auth_rpcgss 44453 1 nfsd lockd 85150 1 nfsd sunrpc 254862 17 nfsd,auth_rpcgss,lockd,nfs_acl binfmt_misc 17463 1 uinput 17673 0 wmi 18697 1 hp_wmi video 18935 0 lspci: 00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07) 00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07) 00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03) 00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03) 00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03) 00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03) 00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03) 00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03) 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 00:1f.6 Signal processing controller: Intel Corporation 82801I (ICH9 Family) Thermal Subsystem (rev 03) 01:00.0 VGA compatible controller: nVidia Corporation G98M [GeForce G105M] (rev a2) 01:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev a1) 02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01) 03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02) my chipset is a core 2 duo, and with a kernel < 3.4 it works!
I'm sorry I meant GeForce G105M nvidia drvers 295.53
Sorry, you use the proprietary nvidia blob, can't help you there... try to reproduce with the stock nouveau driver. nvidia 12344969 34
ls -al /sys/class/backlight/ please, to be sure :)
[14:59] <Caterpillar> ls -al /sys/class/backlight/ gives [14:59] <Caterpillar> totale 0 [14:59] <Caterpillar> drwxr-xr-x 2 root root 0 8 giu 12.24 . [14:59] <Caterpillar> drwxr-xr-x 58 root root 0 8 giu 12.24 . [14:59] <ltinkl> ok [14:59] <ltinkl> Caterpillar: xbacklight gives? [15:00] <Caterpillar> have to install it [15:00] <ltinkl> yum install xbacklight :) [15:00] <Caterpillar> yes, doing it [15:01] <Caterpillar> no outputs have baclight property
The proprietary nvidia driver does not support setting the backlight through X11/XRandR, no surprise there.