I bought a laptop in December 2012, immediately tried to put Ubuntu 12.10, got broken wi-fi and non-working graphics acceleration. Updated kernel to version 3.6, with graphic acceleration was all right, even partially earned wi-fi. After some time wi-fi hang, helped only restart the network subsystem.
Updated kernel to 3.7, with the wi-fi was all became normal, but stopped working brightness control with the Fn keys. Progress bar indicates that the brightness changes, but in fact nothing happens.
Tried the new distribution 13.04, on 3.8 kernels, 3.9, 3.10, nothing changes. Upon adjustment has broken in 3.7 kernel. It turns out that this is a regression.
WORKAROUND: Problem gone with kernel parameter acpi_backlight=vendor.
---
ApportVersion: 2.9.2-0ubuntu8.1
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CRDA:
country UA:
(2402 - 2482 @ 40), (N/A, 20)
DistroRelease: Ubuntu 13.04
InstallationDate: Installed on 2013-08-04 (0 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: Hewlett-Packard HP ProBook 4540s
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic root=UUID=f5b4658c-870e-449d-a9d7-5caaa6eec2f3 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
RelatedPackageVersions:
linux-restricted-modules-3.8.0-19-generic N/A
linux-backports-modules-3.8.0-19-generic N/A
linux-firmware 1.106
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: raring
Uname: Linux 3.8.0-19-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 05/20/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68IRR Ver. F.41
dmi.board.name: 17F6
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 58.1E
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68IRRVer.F.41:bd05/20/2013:svnHewlett-Packard:pnHPProBook4540s:pvrA1018C1100:rvnHewlett-Packard:rn17F6:rvrKBCVersion58.1E:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 4540s
dmi.product.version: A1018C1100
dmi.sys.vendor: Hewlett-Packard
---
ApportVersion: 2.12-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 3887 F.... pulseaudio
ubuntu 14062 F.... pulseaudio
CRDA:
country UA:
(2400 - 2483 @ 40), (N/A, 20), NO-OUTDOOR
(5150 - 5350 @ 40), (N/A, 20), NO-OUTDOOR
(57240 - 65880 @ 2160), (N/A, 40), NO-OUTDOOR
CasperVersion: 1.336
DistroRelease: Ubuntu 13.10
LiveMediaBuild: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130807)
MachineType: Hewlett-Packard HP ProBook 4540s
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/username.seed boot=casper persistent initrd=/casper/initrd.lz splash -- maybe-ubiquity
ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3
RelatedPackageVersions:
linux-restricted-modules-3.10.0-6-generic N/A
linux-backports-modules-3.10.0-6-generic N/A
linux-firmware 1.113
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Tags: saucy
Uname: Linux 3.10.0-6-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 05/20/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68IRR Ver. F.41
dmi.board.name: 17F6
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 58.1E
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68IRRVer.F.41:bd05/20/2013:svnHewlett-Packard:pnHPProBook4540s:pvrA1018C1100:rvnHewlett-Packard:rn17F6:rvrKBCVersion58.1E:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 4540s
dmi.product.version: A1018C1100
dmi.sys.vendor: Hewlett-Packard
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1208257
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.