backlight_level =
amdgpu_atombios_encoder_get_backlight_level_from_reg(adev);
dig = amdgpu_encoder->enc_priv;
dig->bl_dev = bd;
bd->props.brightness =
amdgpu_atombios_encoder_get_backlight_brightness(bd);
bd->props.power = FB_BLANK_UNBLANK;
backlight_update_status(bd);
DRM_INFO("amdgpu atom DIG backlight initialized\n");
u8
amdgpu_atombios_encoder_get_backlight_level_from_reg(struct amdgpu_device *adev)
{
u8 backlight_level;
u32 bios_2_scratch;
bios_2_scratch = RREG32(mmBIOS_SCRATCH_2);
backlight_level = ((bios_2_scratch & ATOM_S2_CURRENT_BL_LEVEL_MASK) >>
ATOM_S2_CURRENT_BL_LEVEL_SHIFT);
return backlight_level;
}
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1802834
Title:
Dim screen after first boot on Thinkpad A285
Status in linux package in Ubuntu:
Confirmed
Bug description:
We installed the 18.04 daily image on ThinkPad A285, found the screen is dim
at the first boot.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: u 1481 F.... pulseaudio
/dev/snd/controlC0: u 1481 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-11-12 (0 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
MachineType: LENOVO 20MWZ47RUS
Package: linux (not installed)
ProcFB: 0 amdgpudrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic
root=UUID=347498ab-8eae-42d3-a1e3-74e9be6b6ba3 ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-38-generic N/A
linux-backports-modules-4.15.0-38-generic N/A
linux-firmware 1.173.1
Tags: bionic
Uname: Linux 4.15.0-38-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 09/21/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: R0XET30W (1.07 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20MWZ47RUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias:
dmi:bvnLENOVO:bvrR0XET30W(1.07):bd09/21/2018:svnLENOVO:pn20MWZ47RUS:pvrThinkPadA285:rvnLENOVO:rn20MWZ47RUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad A285
dmi.product.name: 20MWZ47RUS
dmi.product.version: ThinkPad A285
dmi.sys.vendor: LENOVO
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