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Ubuntu 15.04 зависает на секунду каждые 6-10 секунд, связанные с PCI / Radeon сообщениями в kern.log

Сегодня вечером я сделал новую установку Xubuntu 15.04 на своем ноутбуке Acer Aspire TimelineX 4820TG. Раньше я работал 14.04 LTS, и все было хорошо. У меня не было много вещей для сохранения, поэтому я пошел на полную деинсталляцию и новую переустановку, чтобы иметь более чистую систему.

К сожалению, я испытываю периодические зависания с момента первой загрузки. Замораживание происходит каждые 6-10 секунд и длится около 1 секунды. Во время замораживания мышь и клавиатура не реагируют, и поэтому она выглядит во всей системе. Это очень раздражает.

Кроме того, я могу слышать, как скорость вентилятора увеличивается каждый раз, когда происходит замерзание. И система зависает при выключении (мне пришлось долго нажать кнопку питания).

Я заметил, что во время каждого замораживания эти точные строки в /var/log/kern.log печатаются:

 [ 159.876643] snd_hda_intel 0000:01:00.1: Disabling via VGA-switcheroo [ 160.097085] snd_hda_intel 0000:01:00.1: Cannot lock devices! [ 160.844851] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 160.844866] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 160.844874] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 160.844884] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 160.844891] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 161.686549] [drm] PCIE GART of 1024M enabled (table at 0x000000000025E000). [ 161.686692] radeon 0000:01:00.0: WB enabled [ 161.686698] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000020000c00 and cpu addr 0xffff8800a7c78c00 [ 161.686702] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000020000c0c and cpu addr 0xffff8800a7c78c0c [ 161.687450] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x000000000005c418 and cpu addr 0xffffc9001a21c418 [ 161.704183] [drm] ring test on 0 succeeded in 1 usecs [ 161.704196] [drm] ring test on 3 succeeded in 2 usecs [ 161.880223] [drm] ring test on 5 succeeded in 1 usecs [ 161.880231] [drm] UVD initialized successfully. [ 161.880275] [drm] ib test on ring 0 succeeded in 0 usecs [ 161.880313] [drm] ib test on ring 3 succeeded in 0 usecs [ 162.030450] [drm] ib test on ring 5 succeeded [ 162.048802] snd_hda_intel 0000:01:00.1: Enabling via VGA-switcheroo [ 162.063426] [drm] radeon: finishing device. [ 162.072813] [TTM] Finalizing pool allocator [ 162.072823] [TTM] Finalizing DMA pool allocator [ 162.072976] [TTM] Zone kernel: Used memory at exit: 0 kiB [ 162.072983] [drm] radeon: ttm finalized [ 162.072991] vga_switcheroo: disabled [ 162.073830] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=none,decodes=io+mem:owns=io+mem [ 162.116658] pci_bus 0000:01: busn_res: [bus 01] is released [ 162.144719] pci_bus 0000:04: Allocating resources [ 162.144741] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.144749] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.144756] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.144763] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.144769] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.145274] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.145280] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.145285] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.145293] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.145300] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.145373] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.145378] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.145384] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.145392] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.145398] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.145466] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.145471] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.145476] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.145485] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.145491] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.145518] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.145523] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.145528] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.145536] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.145542] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.145731] pci_bus 0000:02: Allocating resources [ 162.145772] pci_bus 0000:03: Allocating resources [ 162.145789] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.145795] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.145800] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.145808] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.145813] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.146003] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.146007] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.146012] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.146018] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.146023] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.146175] [Firmware Bug]: Duplicate ACPI video bus devices for the same VGA controller, please try module parameter "video.allow_duplicates=1"if the current driver doesn't work. [ 162.146196] pci 0000:00:01.0: [8086:0045] type 01 class 0x060400 [ 162.146242] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold [ 162.146501] pci 0000:01:00.0: [1002:68e0] type 00 class 0x030000 [ 162.146521] pci 0000:01:00.0: reg 0x10: [mem 0xe0000000-0xe7ffffff 64bit pref] [ 162.146533] pci 0000:01:00.0: reg 0x18: [mem 0xdc400000-0xdc41ffff 64bit] [ 162.146541] pci 0000:01:00.0: reg 0x20: [io 0x5000-0x50ff] [ 162.146554] pci 0000:01:00.0: reg 0x30: [mem 0xfffe0000-0xffffffff pref] [ 162.146593] pci 0000:01:00.0: supports D1 D2 [ 162.146665] vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=none,locks=none [ 162.146669] vgaarb: device changed decodes: PCI:0000:00:02.0,olddecodes=io+mem,decodes=none:owns=io+mem [ 162.146700] pci 0000:01:00.1: [1002:aa68] type 00 class 0x040300 [ 162.146718] pci 0000:01:00.1: reg 0x10: [mem 0xdc420000-0xdc423fff 64bit] [ 162.146786] pci 0000:01:00.1: supports D1 D2 [ 162.146830] pci 0000:01:00.1: System wakeup disabled by ACPI [ 162.146899] pci 0000:00:01.0: PCI bridge to [bus 01] [ 162.146904] pci 0000:00:01.0: bridge window [io 0x5000-0x5fff] [ 162.146908] pci 0000:00:01.0: bridge window [mem 0xdc400000-0xdc4fffff] [ 162.146914] pci 0000:00:01.0: bridge window [mem 0xe0000000-0xefffffff 64bit pref] [ 162.146921] pci_bus 0000:01: Allocating resources [ 162.146930] pci 0000:01:00.0: can't claim BAR 6 [mem 0xfffe0000-0xffffffff pref]: no compatible bridge window [ 162.146936] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 162.146941] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 162.146945] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 162.146951] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 162.146956] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 162.146967] pci 0000:01:00.0: BAR 6: assigned [mem 0xdc440000-0xdc45ffff pref] [ 162.146970] pci 0000:00:01.0: PCI bridge to [bus 01] [ 162.146972] pci 0000:00:01.0: bridge window [io 0x5000-0x5fff] [ 162.146975] pci 0000:00:01.0: bridge window [mem 0xdc400000-0xdc4fffff] [ 162.146978] pci 0000:00:01.0: bridge window [mem 0xe0000000-0xefffffff 64bit pref] [ 162.147669] [drm] initializing kernel modesetting (CEDAR 0x1002:0x68E0 0x1025:0x0359). [ 162.147692] [drm] register mmio base: 0xDC400000 [ 162.147694] [drm] register mmio size: 131072 [ 162.147697] vga_switcheroo: enabled [ 162.147758] ATPX version 1, functions 0x000000bf [ 162.179303] ATOM BIOS: Acer [ 162.179384] radeon 0000:01:00.0: VRAM: 512M 0x0000000000000000 - 0x000000001FFFFFFF (512M used) [ 162.179387] radeon 0000:01:00.0: GTT: 1024M 0x0000000020000000 - 0x000000005FFFFFFF [ 162.179389] [drm] Detected VRAM RAM=512M, BAR=128M [ 162.179390] [drm] RAM width 64bits DDR [ 162.179491] [TTM] Zone kernel: Available graphics memory: 1856954 kiB [ 162.179493] [TTM] Initializing pool allocator [ 162.179497] [TTM] Initializing DMA pool allocator [ 162.179521] [drm] radeon: 512M of VRAM memory ready [ 162.179522] [drm] radeon: 1024M of GTT memory ready. [ 162.179535] [drm] Loading CEDAR Microcode [ 162.179542] [drm] Internal thermal controller with fan control [ 162.184385] [drm] radeon: dpm initialized [ 162.184499] [drm] GART: num cpu pages 262144, num gpu pages 262144 [ 162.187590] [drm] PCIE GART of 1024M enabled (table at 0x000000000025E000). [ 162.187739] radeon 0000:01:00.0: WB enabled [ 162.187743] radeon 0000:01:00.0: fence driver on ring 0 use gpu addr 0x0000000020000c00 and cpu addr 0xffff880099009c00 [ 162.187745] radeon 0000:01:00.0: fence driver on ring 3 use gpu addr 0x0000000020000c0c and cpu addr 0xffff880099009c0c [ 162.188678] radeon 0000:01:00.0: fence driver on ring 5 use gpu addr 0x000000000005c418 and cpu addr 0xffffc90019f9c418 [ 162.188688] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 162.188689] [drm] Driver supports precise vblank timestamp query. [ 162.188691] radeon 0000:01:00.0: radeon: MSI limited to 32-bit [ 162.188731] radeon 0000:01:00.0: radeon: using MSI. [ 162.188759] [drm] radeon: irq initialized. [ 162.205589] [drm] ring test on 0 succeeded in 2 usecs [ 162.205600] [drm] ring test on 3 succeeded in 5 usecs [ 162.381860] [drm] ring test on 5 succeeded in 2 usecs [ 162.381871] [drm] UVD initialized successfully. [ 162.382330] [drm] ib test on ring 0 succeeded in 0 usecs [ 162.382380] [drm] ib test on ring 3 succeeded in 0 usecs [ 163.032446] [drm] ib test on ring 5 succeeded [ 163.037787] [drm] Radeon Display Connectors [ 163.037791] [drm] Connector 0: [ 163.037793] [drm] LVDS-2 [ 163.037796] [drm] DDC: 0x6460 0x6460 0x6464 0x6464 0x6468 0x6468 0x646c 0x646c [ 163.037797] [drm] Encoders: [ 163.037799] [drm] LCD1: INTERNAL_UNIPHY [ 163.037801] [drm] Connector 1: [ 163.037802] [drm] HDMI-A-1 [ 163.037804] [drm] HPD1 [ 163.037807] [drm] DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c 0x643c [ 163.037808] [drm] Encoders: [ 163.037810] [drm] DFP1: INTERNAL_UNIPHY1 [ 163.037811] [drm] Connector 2: [ 163.037813] [drm] VGA-2 [ 163.037816] [drm] DDC: 0x64d8 0x64d8 0x64dc 0x64dc 0x64e0 0x64e0 0x64e4 0x64e4 [ 163.037817] [drm] Encoders: [ 163.037819] [drm] CRT1: INTERNAL_KLDSCP_DAC1 [ 163.156621] radeon 0000:01:00.0: No connectors reported connected with modes [ 163.156628] [drm] Cannot find any crtc or sizes - going 1024x768 [ 163.157939] [drm] fb mappable at 0xE045F000 [ 163.157941] [drm] vram apper at 0xE0000000 [ 163.157941] [drm] size 3145728 [ 163.157942] [drm] fb depth is 24 [ 163.157943] [drm] pitch is 4096 [ 163.158075] radeon 0000:01:00.0: fb1: radeondrmfb frame buffer device [ 163.158237] [drm] Initialized radeon 2.40.0 20080528 for 0000:01:00.0 on minor 2 [ 163.158403] snd_hda_intel 0000:01:00.1: Handle VGA-switcheroo audio client [ 163.158605] pci_bus 0000:04: Allocating resources [ 163.158623] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 163.158632] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 163.158638] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 163.158645] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 163.158651] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 163.159292] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 163.159303] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 163.159310] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 163.159321] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 163.159330] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 163.159432] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 163.159438] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 163.159444] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 163.159454] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 163.159463] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 163.159562] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 163.159570] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 163.159577] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 163.159588] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 163.159596] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 163.159633] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 163.159639] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 163.159646] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 163.159655] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 163.159665] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 163.159912] pci_bus 0000:02: Allocating resources [ 163.159961] pci_bus 0000:03: Allocating resources [ 163.159983] i915 0000:00:02.0: BAR 6: [??? 0x00000000 flags 0x2] has bogus alignment [ 163.159990] pci 0000:00:1e.0: PCI bridge to [bus 04] [ 163.159997] pci 0000:00:1e.0: bridge window [io 0x3000-0x3fff] [ 163.160008] pci 0000:00:1e.0: bridge window [mem 0xd0000000-0xd01fffff] [ 163.160016] pci 0000:00:1e.0: bridge window [mem 0xd0200000-0xd03fffff 64bit pref] [ 163.164586] input: HDA ATI HDMI HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input36 

Поиск похожих сообщений, я наткнулся на некоторые советы, и я в конечном итоге попробовать загрузочный вариант pci=noacpi первый и noacpi позже. Они решают проблему , но, к сожалению, оба делают мою мышь USB неработоспособной (я не тестировал другие внешние USB-устройства).

В чем проблема? Почему 12.04 работает безупречно? Как я могу решить эту проблему, пока моя мышь и другие USB-устройства работают?

Спасибо.


ОБНОВЛЕНИЕ : после дальнейших исследований я обнаружил, что это может быть связано с двойной переключаемой графикой на моем ноутбуке, которая выглядит сломанной на обновленном ядре 15.04:

https://bugs.freedesktop.org/show_bug.cgi?id=88927
https://bugzilla.kernel.org/show_bug.cgi?id=79701

Я решил использовать radeon.runpm=0 загрузки radeon.runpm=0 , но теперь динамическое включение / выключение дискретной графической карты не работает, поэтому моя система более жаркая, а срок службы батареи короче.