Latest stable version of Manjaro
When I have night light feature enabled then while scrolling I can see blurry (a bit reddish) text. This can be seen on every screen (browser, settings, etc.).
When I disabled night light then this blurry effect is gone.
Is this expected?
No I think this should not be expected. I use this feature and my experience is that the white and blue are less bright. This might have something to do with resolution but that is a guess.
Ah I do notice that setting the slider to the max the image is less clear and could be the behavior you describe. Does changing the temperature change the amount of blur?
I would say yes. The colder the temperature is, the better experience.
Now while in daylight setting the problem is not present at all. I will do more test this/tomorrow night.
I’m sorry I did not post my system information. I just wanted to know what it’s expected behavior.
My system info:
System:
Kernel: 6.1.7-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 12.2.1
parameters: BOOT_IMAGE=/boot/vmlinuz-6.1-x86_64
root=UUID=91c4d4a3-96db-40a7-953d-22670ba42974 rw quiet
cryptdevice=UUID=5f3a73ec-379b-4d7e-8f84-99bed74ea123:luks-5f3a73ec-379b-4d7e-8f84-99bed74ea123
root=/dev/mapper/luks-5f3a73ec-379b-4d7e-8f84-99bed74ea123 splash
apparmor=1 security=apparmor
resume=/dev/mapper/luks-7c057540-93fa-4657-9ccb-10ad57454ccb
udev.log_priority=3
Desktop: GNOME v: 43.2 tk: GTK v: 3.24.36 wm: gnome-shell dm: GDM v: 43.0
Distro: Manjaro Linux base: Arch Linux
Machine:
Type: Laptop System: LENOVO product: 21AHCTO1WW v: ThinkPad T14 Gen 3
serial: <superuser required> Chassis: type: 10 serial: <superuser required>
Mobo: LENOVO model: 21AHCTO1WW serial: <superuser required> UEFI: LENOVO
v: N3MET11W (1.10 ) date: 12/07/2022
Battery:
ID-1: BAT0 charge: 30.5 Wh (58.1%) condition: 52.5/52.5 Wh (100.0%)
volts: 15.5 min: 15.5 model: SMP 5B10W51864 type: Li-poly serial: <filter>
status: discharging
Memory:
RAM: total: 31.06 GiB used: 3.69 GiB (11.9%)
RAM Report: permissions: Unable to run dmidecode. Root privileges required.
CPU:
Info: model: 12th Gen Intel Core i7-1260P bits: 64 type: MST AMCP
arch: Alder Lake level: v3 note: check built: 2021+
process: Intel 7 (10nm ESF) family: 6 model-id: 0x9A (154) stepping: 3
microcode: 0x424
Topology: cpus: 1x cores: 12 mt: 4 tpc: 2 st: 8 threads: 16 smt: enabled
cache: L1: 1.1 MiB desc: d-8x32 KiB, 4x48 KiB; i-4x32 KiB, 8x64 KiB L2: 9 MiB
desc: 4x1.2 MiB, 2x2 MiB L3: 18 MiB desc: 1x18 MiB
Speed (MHz): avg: 1918 high: 2500 min/max: 400/4700:3400 scaling:
driver: intel_pstate governor: powersave cores: 1: 1006 2: 2500 3: 1195
4: 2500 5: 2500 6: 2500 7: 1143 8: 2500 9: 887 10: 785 11: 2500 12: 681
13: 2500 14: 2500 15: 2500 16: 2500 bogomips: 79888
Flags: 3dnowprefetch abm acpi adx aes aperfmperf apic arat
arch_capabilities arch_lbr arch_perfmon art avx avx2 avx_vnni bmi1 bmi2
bts clflush clflushopt clwb cmov constant_tsc cpuid cpuid_fault cx16 cx8
de ds_cpl dtes64 dtherm dts epb erms est f16c flush_l1d fma fpu fsgsbase
fsrm fxsr gfni hfi ht hwp hwp_act_window hwp_epp hwp_notify hwp_pkg_req
ibpb ibrs ibrs_enhanced ibt ida intel_pt invpcid invpcid_single lahf_lm lm
mca mce md_clear mmx monitor movbe movdir64b movdiri msr mtrr nonstop_tsc
nopl nx ospke pae pat pbe pcid pclmulqdq pdcm pdpe1gb pebs pge pku pln pni
popcnt pse pse36 pts rdpid rdrand rdseed rdtscp rep_good sdbg sep
serialize sha_ni smap smep smx split_lock_detect ss ssbd sse sse2 sse4_1
sse4_2 ssse3 stibp syscall tm tm2 tsc tsc_adjust tsc_deadline_timer
tsc_known_freq umip vaes vme vpclmulqdq waitpkg x2apic xgetbv1 xsave
xsavec xsaveopt xsaves xtopology xtpr
Vulnerabilities:
Type: itlb_multihit status: Not affected
Type: l1tf status: Not affected
Type: mds status: Not affected
Type: meltdown status: Not affected
Type: mmio_stale_data status: Not affected
Type: retbleed status: Not affected
Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
prctl
Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
sanitization
Type: spectre_v2 mitigation: Enhanced IBRS, IBPB: conditional, RSB
filling, PBRSB-eIBRS: SW sequence
Type: srbds status: Not affected
Type: tsx_async_abort status: Not affected
Graphics:
Device-1: Intel Alder Lake-P Integrated Graphics vendor: Lenovo driver: i915
v: kernel arch: Gen-12.2 process: Intel 10nm built: 2021-22+ ports:
active: eDP-1 empty: DP-1, DP-2, DP-3, DP-4, HDMI-A-1 bus-ID: 00:02.0
chip-ID: 8086:46a6 class-ID: 0300
Device-2: Acer Integrated RGB Camera type: USB driver: uvcvideo
bus-ID: 3-4:2 chip-ID: 5986:2142 class-ID: fe01 serial: <filter>
Display: wayland server: X.org v: 1.21.1.6 with: Xwayland v: 22.1.7
compositor: gnome-shell driver: gpu: i915 display-ID: 0
Monitor-1: eDP-1 model: AU Optronics 0xd291 built: 2020 res: 1920x1200
dpi: 162 gamma: 1.2 size: 301x188mm (11.85x7.4") diag: 355mm (14")
ratio: 16:10 modes: 1920x1200
API: OpenGL v: 4.6 Mesa 22.3.3 renderer: Mesa Intel Graphics (ADL GT2)
direct render: Yes
Audio:
Device-1: Intel Alder Lake PCH-P High Definition Audio vendor: Lenovo
driver: sof-audio-pci-intel-tgl
alternate: snd_hda_intel,snd_sof_pci_intel_tgl bus-ID: 00:1f.3
chip-ID: 8086:51c8 class-ID: 0403
Sound API: ALSA v: k6.1.7-1-MANJARO running: yes
Sound Server-1: JACK v: 1.9.21 running: no
Sound Server-2: PulseAudio v: 16.1 running: yes
Sound Server-3: PipeWire v: 0.3.64 running: yes
Network:
Device-1: Intel Alder Lake-P PCH CNVi WiFi driver: iwlwifi v: kernel
bus-ID: 00:14.3 chip-ID: 8086:51f0 class-ID: 0280
IF: wlp0s20f3 state: up mac: <filter>
IP v4: <filter> type: dynamic noprefixroute scope: global
broadcast: <filter>
IP v6: <filter> type: dynamic noprefixroute scope: global
IP v6: <filter> type: noprefixroute scope: link
Device-2: Intel Ethernet I219-V vendor: Lenovo driver: e1000e v: kernel
port: N/A bus-ID: 00:1f.6 chip-ID: 8086:1a1f class-ID: 0200
IF: enp0s31f6 state: down mac: <filter>
WAN IP: <filter>
Bluetooth:
Device-1: Intel type: USB driver: btusb v: 0.8 bus-ID: 3-10:3
chip-ID: 8087:0033 class-ID: e001
Report: rfkill ID: hci0 rfk-id: 1 state: up address: see --recommends
Logical:
Message: No logical block device data found.
Device-1: luks-5f3a73ec-379b-4d7e-8f84-99bed74ea123 maj-min: 254:0
type: LUKS dm: dm-0 size: 919.4 GiB
Components:
p-1: nvme0n1p2 maj-min: 259:2 size: 919.4 GiB
Device-2: luks-7c057540-93fa-4657-9ccb-10ad57454ccb maj-min: 254:1
type: LUKS dm: dm-1 size: 34.17 GiB
Components:
p-1: nvme0n1p3 maj-min: 259:3 size: 34.17 GiB
RAID:
Message: No RAID data found.
Drives:
Local Storage: total: 953.87 GiB used: 23.61 GiB (2.5%)
SMART Message: Required tool smartctl not installed. Check --recommends
ID-1: /dev/nvme0n1 maj-min: 259:0 vendor: Samsung model: MZVL21T0HCLR-00BL7
size: 953.87 GiB block-size: physical: 512 B logical: 512 B speed: 63.2 Gb/s
lanes: 4 type: SSD serial: <filter> rev: CL2QGXA7 temp: 38.9 C scheme: GPT
Message: No optical or floppy data found.
Partition:
ID-1: / raw-size: 919.4 GiB size: 903.89 GiB (98.31%) used: 23.61 GiB (2.6%)
fs: ext4 dev: /dev/dm-0 maj-min: 254:0
mapped: luks-5f3a73ec-379b-4d7e-8f84-99bed74ea123 label: N/A
uuid: 91c4d4a3-96db-40a7-953d-22670ba42974
ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
used: 472 KiB (0.2%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:1 label: N/A
uuid: FC21-11C4
Swap:
Kernel: swappiness: 60 (default) cache-pressure: 100 (default)
ID-1: swap-1 type: partition size: 34.17 GiB used: 0 KiB (0.0%)
priority: -2 dev: /dev/dm-1 maj-min: 254:1
mapped: luks-7c057540-93fa-4657-9ccb-10ad57454ccb label: swap
uuid: b65e8ad6-a1bc-4e36-a9e9-750b2f0bfee0
Unmounted:
Message: No unmounted partitions found.
USB:
Hub-1: 1-0:1 info: Hi-speed hub with single TT ports: 1 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Hub-2: 2-0:1 info: Super-speed hub ports: 3 rev: 3.1 speed: 20 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Hub-3: 3-0:1 info: Hi-speed hub with single TT ports: 12 rev: 2.0
speed: 480 Mb/s chip-ID: 1d6b:0002 class-ID: 0900
Device-1: 3-4:2 info: Acer Integrated RGB Camera type: Video
driver: uvcvideo interfaces: 5 rev: 2.0 speed: 480 Mb/s power: 500mA
chip-ID: 5986:2142 class-ID: fe01 serial: <filter>
Device-2: 3-10:3 info: Intel type: Bluetooth driver: btusb interfaces: 2
rev: 2.0 speed: 12 Mb/s power: 100mA chip-ID: 8087:0033 class-ID: e001
Hub-4: 4-0:1 info: Super-speed hub ports: 4 rev: 3.1 speed: 10 Gb/s
chip-ID: 1d6b:0003 class-ID: 0900
Sensors:
System Temperatures: cpu: 46.0 C mobo: N/A
Fan Speeds (RPM): fan-1: 0
Info:
Processes: 374 Uptime: 1h 6m wakeups: 3413 Init: systemd v: 252
default: graphical tool: systemctl Compilers: gcc: 12.2.1 clang: 15.0.7
Packages: 1223 pm: pacman pkgs: 1218 libs: 314 tools: gnome-software,pamac
pm: flatpak pkgs: 5 Shell: Bash v: 5.1.16 running-in: gnome-terminal
inxi: 3.3.24
I tried to play with that a bit and the warmer temperature is set the more intense reddish blurring is visible. On the other hand it might be just personal feeling. For sure, if I switched off night mode then this problem is gone.