Package: linux-image-2.6-amd64 Version: 3.2+44 On a Lenovo T420s laptop the screen backlight is dimmed from the power-on default to "very low" at boot time. This happens after Grub started the kernel and while the
Loading initial ramdisk...
is shown, but before all the "usual" hardware initialization
happens (quiet mode is off).
This is highly annoying, esp. if you have to enter a Luks
password at boot time to decrypt the root partition, but you
cannot read the screen.
The laptop is connected to AC. All the power management
options in the BIOS are set to "Performance". Most recent
BIOS update is installed.
On a Samsung laptop there is no such problem (using the
same boot disk).
lspci:
00:00.0 Host bridge: Intel Corporation Sandy Bridge DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Sandy Bridge Integrated
Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation Cougar Point HECI
Controller #1 (rev 04)
00:16.3 Serial controller: Intel Corporation Cougar Point KT Controller (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
Connection (rev 04)
00:1a.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host
Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation Cougar Point High Definition Audio
Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 1 (rev
b4)
00:1c.1 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 2 (rev
b4)
00:1c.3 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 4 (rev
b4)
00:1c.4 PCI bridge: Intel Corporation Cougar Point PCI Express Root Port 5 (rev
b4)
00:1d.0 USB Controller: Intel Corporation Cougar Point USB Enhanced Host
Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Cougar Point LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation Cougar Point 6 port SATA AHCI
Controller (rev 04)
00:1f.3 SMBus: Intel Corporation Cougar Point SMBus Controller (rev 04)
03:00.0 Network controller: Intel Corporation 6000 Series Gen2 (rev 34)
05:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)
0d:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev
04)
Regards
Harri
ppcl007.lspci.log.gz
Description: application/gzip
