Estou usando o laptop Acer e5-575g e meu touchpad tem um problema com todos os linux (seja lento ou não funciona)
Sempre o mesmo problema:
desativando #irq 16
Eu tentei o ubuntu (17.04 e 17.10) e o debian, kali linux
sempre o mesmo erro em dmesg :
[ 50.818742] irq 16: nobody cared (try booting with the "irqpoll" option)
[ 50.818746] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.10.0-42-generic #46-Ubuntu
[ 50.818747] Hardware name: Acer Aspire E5-575G/Ironman_SK , BIOS V1.29 07/21/2017
[ 50.818747] Call Trace:
[ 50.818748] <IRQ>
[ 50.818751] dump_stack+0x63/0x81
[ 50.818753] __report_bad_irq+0x35/0xc0
[ 50.818754] note_interrupt+0x234/0x270
[ 50.818755] handle_irq_event_percpu+0x54/0x80
[ 50.818756] handle_irq_event+0x3b/0x60
[ 50.818757] handle_fasteoi_irq+0x8f/0x140
[ 50.818758] handle_irq+0x1a/0x30
[ 50.818762] do_IRQ+0x46/0xd0
[ 50.818767] common_interrupt+0x89/0x89
[ 50.818773] RIP: 0010:cpuidle_enter_state+0x122/0x2c0
[ 50.818775] RSP: 0018:ffffb80a80cf7e58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff5c
[ 50.818776] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 000000000000001f
[ 50.818777] RDX: 0000000bd5086756 RSI: ffff9c036ed16a98 RDI: 0000000000000000
[ 50.818777] RBP: ffffb80a80cf7e98 R08: cccccccccccccccd R09: 0000000000000008
[ 50.818778] R10: 0000000000000002 R11: 0000000000000004 R12: ffff9c036ed21200
[ 50.818778] R13: ffffffff9b2e72d8 R14: 0000000000000001 R15: ffffffff9b2e72c0
[ 50.818778] </IRQ>
[ 50.818780] ? cpuidle_enter_state+0x110/0x2c0
[ 50.818781] cpuidle_enter+0x17/0x20
[ 50.818785] call_cpuidle+0x23/0x40
[ 50.818786] do_idle+0x189/0x200
[ 50.818787] cpu_startup_entry+0x71/0x80
[ 50.818789] start_secondary+0x154/0x190
[ 50.818790] start_cpu+0x14/0x14
[ 50.818790] handlers:
[ 50.818793] [<ffffffffc0711950>] idma64_irq [idma64]
[ 50.818795] [<ffffffffc0be8140>] i2c_dw_isr [i2c_designware_core]
[ 50.818796] Disabling IRQ #16
Sempre o touchpad fica atrasado ou não funciona depois de algum tempo (geralmente segundos após o boot)
/proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 20 0 0 0 IR-IO-APIC 2-edge timer
1: 0 385 5936 378 IR-IO-APIC 1-edge i8042
8: 0 0 1 0 IR-IO-APIC 8-edge rtc0
9: 5 32 175 34 IR-IO-APIC 9-fasteoi acpi
16: 199042 69811 579322 200447 IR-IO-APIC 16-fasteoi idma64.0, i2c_designware.0
82: 66 46 298 54 IR-IO-APIC 82-edge ELAN0501:00
120: 0 0 0 0 DMAR-MSI 0-edge dmar0
121: 0 0 0 0 DMAR-MSI 1-edge dmar1
122: 0 0 0 0 IR-PCI-MSI 458752-edge aerdrv, PCIe PME
123: 0 0 0 0 IR-PCI-MSI 475136-edge PCIe PME, pciehp
124: 0 0 0 0 IR-PCI-MSI 479232-edge PCIe PME
125: 0 0 0 0 IR-PCI-MSI 481280-edge PCIe PME
126: 81 559 113713 3872 IR-PCI-MSI 327680-edge xhci_hcd
127: 1505 9725 31400 5173 IR-PCI-MSI 376832-edge ahci[0000:00:17.0]
128: 9 3 0 2 IR-PCI-MSI 2097152-edge rtsx_pci
129: 0 0 0 0 IR-PCI-MSI 2099200-edge enp4s0f1
130: 23 3 32 3 IR-PCI-MSI 524288-edge
131: 75 9 23 650278 IR-PCI-MSI 32768-edge i915
132: 33 1 0 0 IR-PCI-MSI 360448-edge mei_me
133: 923 161 765 188 IR-PCI-MSI 514048-edge snd_hda_intel:card0
134: 109 72197 8546 303 IR-PCI-MSI 1572864-edge ath10k_pci
NMI: 14 15 15 15 Non-maskable interrupts
LOC: 320461 377641 363951 340298 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 14 15 15 15 Performance monitoring interrupts
IWI: 0 0 1 0 IRQ work interrupts
RTR: 0 0 0 0 APIC ICR read retries
RES: 75784 70992 62168 69280 Rescheduling interrupts
CAL: 21381 19103 17673 17778 Function call interrupts
TLB: 17069 16976 15621 15754 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
DFR: 0 0 0 0 Deferred Error APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 11 11 11 11 Machine check polls
ERR: 0
MIS: 0
PIN: 0 0 0 0 Posted-interrupt notification event
PIW: 0 0 0 0 Posted-interrupt wakeup event
Apenas a opção de kernel acpi_osi= my touchpad funciona novamente, mas com essa opção meu brilho tem um problema (tela preta na alteração)
A propósito, no windows, tudo funciona bem.