yes. Output from lscpu if that helps: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian Address sizes: 48 bits physical, 48 bits virtual CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) per socket: 4 Socket(s): 1 NUMA node(s): 1 Vendor ID: AuthenticAMD CPU family: 21 Model: 2 Model name: AMD FX(tm)-8350 Eight-Core Processor Stepping: 0 CPU MHz: 1405.672 CPU max MHz: 4000.0000 CPU min MHz: 1400.0000 BogoMIPS: 8035.83 Virtualisation: AMD-V L1d cache: 16K L1i cache: 64K L2 cache: 2048K L3 cache: 8192K NUMA node0 CPU(s): 0-7 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb cpb hw_pstate ssbd ibpb vmmcall bmi1 arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold
-- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to rtirq in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs https://bugs.launchpad.net/bugs/1787857 Title: USB mouse cursor lags after random time of correct behaviour Status in linux package in Ubuntu: Confirmed Status in rtirq package in Ubuntu: Invalid Bug description: I installed Ubuntu Studio 18.04.1 LTS. After the first apt-get update I noticed the following behaviour: after havig logged in, my USB mouse works normally for about ten seconds, then the cursor starts lagging a lot which makes the mouse pretty much unusable. The last dmesg always contain lines these: (more in attached file) [<000000009e659b0c>] irq_default_primary_handler threaded [<00000000fa56edac>] usb_hcd_irq [<000000009e659b0c>] irq_default_primary_handler threaded [<00000000fe1afb05>] _rtl_pci_interrupt [rtl_pci] Disabling IRQ #18 Out of frustration & curiosity I disabled most autostart apps (Settings > Session ... > Autostart) and re-enabled them after rebooting. Since then I rarely encounter the lagging cursor. If I open Settings > Mouse & Touchpad and toggle any option on/off the cursor starts lagging. How can make the cursor work reliably? Some comment in dmesg mentions "irqpoll" boot option Ubuntu Studio 18.04.1 4.15.0-20-lowlatency #21-Ubuntu SMP PREEMPT To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1787857/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : ubuntustudio-bugs@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp
