写了个bug，等修复吧😄

一样,没法摁键调节亮度.

俺也一样

内核版本？换以前的内核进入看看是否正常

我也碰上了，但不打算搞了，用以下指令暫時設為可以接受的亮度：

#（ 把當前亮度設為最大亮度的 四分之一， 晚上我是設為八分之一）

sudo su -

echo $(expr $(cat /sys/class/backlight/intel_backlight/max_brightness) / 4) > /sys/class/backlight/intel_backlight/brightness

這兩個版本的核都可以重現問題：

linux-image-5.10.18-amd64-desktop
linux-image-5.11.1-amd64-desktop

上一個用過的可用核版本是：

linux-image-5.10.5-amd64-desktop+

以下來自kern.log 的一些訊息：

ACPI Error: Needed [Integer/String/Buffer], found [Package] 000000000afddf12 (20200925/exresop-472)
Apr  2 08:43:14 deepin-PC kernel: [    4.755914] ACPI Error: AE_AML_OPERAND_TYPE, While resolving operands for [ToHexString] (20200925/dswexec-434)
Apr  2 08:43:14 deepin-PC kernel: [    4.755918]
Apr  2 08:43:14 deepin-PC kernel: [    4.755918] No Local Variables are initialized for Method [ADBG]
Apr  2 08:43:14 deepin-PC kernel: [    4.755919]
Apr  2 08:43:14 deepin-PC kernel: [    4.755920] Initialized Arguments for Method [ADBG]:  (1 arguments defined for method invocation)
Apr  2 08:43:14 deepin-PC kernel: [    4.755920]   Arg0:   000000000afddf12            Package 000000000afddf12
Apr  2 08:43:14 deepin-PC kernel: [    4.755924]
Apr  2 08:43:14 deepin-PC kernel: [    4.755926] ACPI Error: Aborting method \ADBG due to previous error (AE_AML_OPERAND_TYPE) (20200925/psparse-531)
Apr  2 08:43:14 deepin-PC kernel: [    4.756223] ACPI Error: Aborting method \_SB.HIDD._DSM due to previous error (AE_AML_OPERAND_TYPE) (20200925/psparse-531)
Apr  2 08:43:14 deepin-PC kernel: [    4.756231] ACPI: \_SB_.HIDD: failed to evaluate _DSM (0x3003)
Apr  2 08:43:14 deepin-PC kernel: [    4.756269] input: Intel HID events as /devices/platform/INT33D5:00/input/input15
Apr  2 08:43:14 deepin-PC kernel: [    4.767674] Non-volatile memory driver v1.3
Apr  2 08:43:14 deepin-PC kernel: [    4.770204] thinkpad_acpi: ThinkPad ACPI Extras v0.26
Apr  2 08:43:14 deepin-PC kernel: [    4.770205] thinkpad_acpi: http://ibm-acpi.sf.net/
Apr  2 08:43:14 deepin-PC kernel: [    4.770206] thinkpad_acpi: ThinkPad BIOS N2WET19W (1.09 ), EC N2WHT11W
Apr  2 08:43:14 deepin-PC kernel: [    4.770206] thinkpad_acpi: Lenovo ThinkPad X1 Carbon Gen 8, model 20U9S0JJ00
Apr  2 08:43:14 deepin-PC kernel: [    4.770493] thinkpad_acpi: radio switch found; radios are enabled
Apr  2 08:43:14 deepin-PC kernel: [    4.770502] thinkpad_acpi: This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver
Apr  2 08:43:14 deepin-PC kernel: [    4.770502] thinkpad_acpi: Disabling thinkpad-acpi brightness events by default...
Apr  2 08:43:14 deepin-PC kernel: [    4.772886] thinkpad_acpi: rfkill switch tpacpi_bluetooth_sw: radio is unblocked
Apr  2 08:43:14 deepin-PC kernel: [    4.780064] intel_pch_thermal 0000:00:12.0: enabling device (0000 -> 0002)
Apr  2 08:43:14 deepin-PC kernel: [    4.787419] thinkpad_acpi: battery 1 registered (start 0, stop 100)

我靠，俺也一样

mesa版本19太低了  xe核心显卡根本驱动不了  

笔记本i7-4510U处理器，同无法调节亮度