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💡 Newskategorie: Linux Tipps
🔗 Quelle: reddit.com
Hello there,
i consider this as a Update Threat about common problems related to the thinkpad e595 running linux. This shouldn't be Distro or WM related. Anyways, i am currently on arch; kernel 5.6.3 using kde(plasma).
I configured my e595 as followed:
Ryzen7 3700u
Realtek RTL8822BE (i know you cant configure this manually, but i just read about a user that has a intel Wifi card on his e595)
custom upgraded 16GB of RAM (16GB (2x 8192MB) HyperX Impact DDR4-2400 SO-DIMM CL14-14-14 Dual Kit)
Rest is standard.
My system is encrypted, i run lvm on luks, grub as a bootloader, a standard Xorg config, sddm as a greeter and the amdgpu driver.
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#1 WiFi:
i dont experience any problems with using the WiFi controller above. status: kernel 5.6.3
#2 keyboard and special keys:
I personally switched the ctrl and fn key in the uefi.
Working keys/key combinations with FN:
Mute, volume up / vol. down, toggle WiFi
Non working key combinations:
brightness up/down, toggle touchpad
unknown:
toggle bluetooth (i personally disabled bluetooth in the uefi, cause i dont need it.),
toggle mic (i dont get any visual feedback on this),
toggle screen (whatever this is, no visual feedback),
open settings (fn+f9, i guess this should open the default system settings on kde),
open favourites (dont know what this should open in linux)
i pressed all keys, starting with F1, ending with F12 while i ran acpi_listen:
[dennis@dennisnotebook ~]$ acpi_listen
button/mute MUTE 00000080 00000000 K #fn+f1 works. mute.
button/volumedown VOLDN 00000080 00000000 K #fn+f2 works. vol down.
button/volumeup VOLUP 00000080 00000000 K #fn+f3 works. vol up.
button/f20 F20 00000080 00000000 K #fn+f4 unkown. should toggle mic.
video/brightnessdown BRTDN 00000087 00000000 #fn+f5 doenst work. bright. down.
video/brightnessup BRTUP 00000086 00000000 #fn+f6 doesnt work. bright. up.
video/switchmode VMOD 00000080 00000000 K #fn+f7 doesnt work/unknown. toggle video output/screen
button/wlan WLAN 00000080 00000000 K #fn+f8 works. toggle. wifi.
###no event for fn+f9! this may should open the settings###
ibm/hotkey LEN0268:00 00000080 00001314 #fn+f10 unknown. toggle bluetooth
ibm/hotkey LEN0268:00 00000080 00001315 #fn+f11 doesnt work. toggle touchpad
ibm/hotkey LEN0268:00 00000080 00001311 #fn+12 doesnt work. open favourites
hitting the fn+"=" key twice gives a ´.
no events for fn+print screen
fn+backspace hibernates/deep sleep or however it is called. But, it is bugged anyways, the e595 wont wake up after however this is called. Same behaviour when pressing fn+4.
i found this: https://wiki.gentoo.org/wiki/ACPI/ThinkPad-special-buttons
but i didnt understand it. lol. But i'd like to. If anyone feels free to answer stupid questions, leave a comment ;)
Where do the numbers after the keyboard_key come from? how do they match with the numbers i receive when running acpi_listen? should they match?
when scrolling down that site you can find a tutorial how to setup the backlight (#3), didnt try that yet.
#3 adjusting backlight
this is related to problem #2, you cant adjust the brightness of the screen.
i read the boot protocols and did this:
[dennis@dennisnotebook ~]$ systemctl status [systemd-backlight@backlight:acpi_video0.service](mailto:systemd-backlight@backlight:acpi_video0.service)
● [systemd-backlight@backlight:acpi_video0.service](mailto:systemd-backlight@backlight:acpi_video0.service) - Load/Save Screen Backlight Brightness of backlight:acpi_video0
Loaded: loaded (/usr/lib/systemd/system/systemd-backlight@.service; static; vendor preset: disabled)
Active: failed (Result: exit-code) since Sun 2020-04-12 15:43:30 CEST; 1min 12s ago
Docs: [man:systemd-backlight@.service](mailto:man:systemd-backlight@.service)(8)
Process: 895 ExecStart=/usr/lib/systemd/systemd-backlight load backlight:acpi_video0 (code=exited, status=1/FAILURE)
Main PID: 895 (code=exited, status=1/FAILURE)
Warning: some journal files were not opened due to insufficient permissions.
[dennis@dennisnotebook ~]$ sudo journalctl -b _PID=895
-- Logs begin at Sat 2020-02-29 00:19:20 CET, end at Sun 2020-04-12 15:44:55 CEST. --
Apr 12 15:43:30 dennisnotebook systemd-backlight[895]: Failed to get backlight or LED device 'backlight:acpi_video0': No such device
the error message in the systemd status dont change at all when applying different acpi_backlight kernel parameters (/etc/default/grub). acpi_backlight=video/vendor/native/none it doesnt matter.
Related to #4 when running powertop -c the backlight gets somehow adjusted.
#4 power saving
i installed TLP and powertop.
I ran powertop --auto-tune and powertop -c
the idle power consumption varies between 5,X/6 watts and 9 watts, highly depends on if i'm moving my mouse constantly or not.
#5 touchpad
the e595 uses the SynPS/2 Synaptics TouchPad.
i personally disabled it when plugging in a mouse. I dont plan to use the laptop on my lap, thus i always have a mouse near me.
i disabled the red pointer device (trackball or however this is called) in the uefi.
Let me now if you experience any problems. I'll update this post when things change due to software updates/ i find more wiki articles and try them / you comment your experiences / i try different software.
Hopefully we will all profit from this. Thank you for reading!
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