Arch linux macbook screen brightness4/15/2023 ![]() ![]() ![]() Jun 19 20:22:25 chandra kernel: Workqueue: events console_callback Jun 19 20:22:25 chandra kernel: Hardware name: Dell Inc. ![]() Jun 19 20:22:25 chandra kernel: scsi_mod firewire_core crc_itu_t i8042 serio ehci_pci uhci_hcd ehci_hcd usbcore usb_common Jun 19 20:22:25 chandra kernel: Modules linked in: joydev mousedev hid_generic usbhid hid iTCO_wdt iTCO_vendor_support dell_wmi sparse_keymap snd_hda_codec_realtek i915 snd_hda_codec_generic kvm_intel snd_hda_intel kvm snd_hda_controller uas dell_laptop uvcvideo drm_kms_helper rfkill snd_hda_codec videobuf2_vmalloc videobuf2_memops dcdbas videobuf2_core microcode usb_storage drm snd_hwdep videodev media psmouse evdev mac_hid serio_raw i2c_i801 snd_pcm snd_timer r8169 lpc_ich ssb mii snd pcmcia pcmcia_core soundcore shpchp i2c_algo_bit wmi tpm_infineon tpm_tis tpm battery ac i2c_core intel_agp intel_gtt video button acpi_cpufreq processor ext4 crc16 mbcache jbd2 sd_mod crc_t10dif crct10dif_common sr_mod cdrom ata_generic pata_acpi atkbd libps2 sdhci_pci sdhci led_class ahci libahci mmc_core firewire_ohci ata_piix libata Jun 19 20:22:25 chandra kernel: PLL state assertion failure (expected on, current off) Switching back to linux-3.15.1-1-x86_64 causes the same problem again. Packages installed which seem to be problematic: Switching TTYs does not have an effect (Ctrl+Alt+F) on the display.īehind, the system is still responsive, like pressing Ctrl+Alt+Delete followed by Enter does trigger a reboot/poweroff (in my case, this seems to trigger the KDM functions on the login screen). ![]() After some seconds, the screen goes black. In fact it displays something that looks like a persian carpet. System does not boot properly, in detail the system seems to boot more or less successfully but the screen/display is not usable. ![]()
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