[Adding CCs] On Saturday 20 March 2010, Karl Vogel wrote: > I have been experiencing a very sluggish X server right after starting > my laptop. The effect goes away after a few minutes, so it was rather > hard to track down. > > Recently after updating WINE to a newer release, I've been able to > trigger the effect by running a certain game under wine on a remote > computer and using VirtualGL to transport the GL display to my laptop. > As I first thought the issue was somewhere with wine/virtualgl, I posted > the question to the virtualgl mailing list. The thread is here: > > http://thread.gmane.org/gmane.comp.video.opengl.virtualgl.user/170 > > But after some further investigation, it seems the issue is with the > i915 driver. > > The 'effect' is that only the mouse pointer works in the X server. The > cpu usage on the laptop during the sluggishness is minimal. When I > suspend the game with winedbg, the X server slowly becomes responsive again. > > The output from latencytop seems to point to i915 being the culprit: > > Cause Maximum Percentage > [i915_gem_sw_finish_ioctl] 3880.2 msec 51.0 % > Throttling GPU while waiting for commands 1337.6 msec 12.1 % > [i915_gem_set_domain_ioctl] 739.6 msec 10.3 % > mmaping memory 275.0 msec 0.9 % > Scheduler: waiting for cpu 106.1 msec 3.8 % > Executing raw SCSI command 105.4 msec 0.8 % > fsync() on a file (type 'F' for details) 84.5 msec 0.5 % > [i915_gem_do_execbuffer] 19.7 msec 0.4 % > [i915_gem_pwrite_ioctl] 19.7 msec 0.4 % > > > -- > Cause Maximum Percentage > [i915_gem_sw_finish_ioctl] 4181.0 msec 57.5 % > [i915_gem_set_domain_ioctl] 3395.2 msec 35.0 % > Throttling GPU while waiting for commands 742.0 msec 2.7 % > [i915_gem_create_ioctl] 19.7 msec 0.1 % > [i915_gem_busy_ioctl] 19.7 msec 0.4 % > [i915_gem_pwrite_ioctl] 19.6 msec 0.3 % > [i915_gem_madvise_ioctl] 19.6 msec 1.4 % > [i915_gem_do_execbuffer] 19.4 msec 0.1 % > [i915_do_wait_request] 5.0 msec 0.2 % > > -- > Cause Maximum Percentage > [i915_gem_set_domain_ioctl] 4609.5 msec 32.8 % > [i915_gem_sw_finish_ioctl] 3316.7 msec 52.0 % > [i915_gem_create_ioctl] 744.1 msec 3.0 % > synchronous write 345.9 msec 1.3 % > Executing a program 109.7 msec 0.4 % > fsync() on a file (type 'F' for details) 87.6 msec 1.0 % > Page fault 86.1 msec 0.8 % > Writing a page to disk 20.1 msec 0.4 % > [i915_gem_madvise_ioctl] 19.7 msec 3.4 % > > > > These were taken on a Fedora 12 kernel v2.6.32.9-70 > I also tried to reproduce it with the latest kernel v2.6.34-rc2, but > it's much worse with that one, since it causes the laptop to completely > lockup when I start the game! > > I've tried to enable some extra kernel debug options and also setup > netconsole to see if there is anything reported before the lockup, but > unfortunately there's no output. > > -- > Some hardware details: > > > 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series > Chipset Integrated Graphics Controller (rev 07) (prog-if 00 [VGA > controller]) > Subsystem: Dell Device 024f > Flags: bus master, fast devsel, latency 0, IRQ 31 > Memory at f6c00000 (64-bit, non-prefetchable) [size=4M] > Memory at e0000000 (64-bit, prefetchable) [size=256M] > I/O ports at ef98 [size=8] > Expansion ROM at <unassigned> [disabled] > Capabilities: <access denied> > Kernel driver in use: i915 > Kernel modules: i915 > > 00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset > Integrated Graphics Controller (rev 07) > Subsystem: Dell Device 024f > Flags: bus master, fast devsel, latency 0 > Memory at f6b00000 (64-bit, non-prefetchable) [size=1M] > Capabilities: <access denied> > > > X.Org X Server 1.7.5.902 (1.7.6 RC 2) > Release Date: 2010-03-12 > X Protocol Version 11, Revision 0 > > (--) PCI:*(0:0:2:0) 8086:2a42:1028:024f Intel Corporation Mobile 4 > Series Chipset Integrated Graphics Controller rev 7, Mem @ > 0xf6c00000/4194304, 0xe0000000/268435456, I/O @ 0x0000ef98/8, BIOS @ > 0x????????/131072 > (--) PCI: (0:0:2:1) 8086:2a43:1028:024f Intel Corporation Mobile 4 > Series Chipset Integrated Graphics Controller rev 7, Mem @ > 0xf6b00000/1048576, BIOS @ 0x????????/65536 > > (II) LoadModule: "intel" > (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so > (II) Module intel: vendor="X.Org Foundation" > compiled for 1.7.0, module version = 2.9.1 > Module class: X.Org Video Driver > ABI class: X.Org Video Driver, version 6.0 > (II) intel: Driver for Intel Integrated Graphics Chipsets: i810, > i810-dc100, i810e, i815, i830M, 845G, 852GM/855GM, 865G, 915G, > E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM, Pineview G, > 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33, GM45, > 4 Series, G45/G43, Q45/Q43, G41, B43, Clarkdale, Arrandale > (II) Primary Device is: PCI 0...@00:02:0 > drmOpenDevice: node name is /dev/dri/card0 > drmOpenDevice: open result is 9, (OK) > drmOpenByBusid: Searching for BusID pci:0000:00:02.0 > drmOpenDevice: node name is /dev/dri/card0 > drmOpenDevice: open result is 9, (OK) > drmOpenByBusid: drmOpenMinor returns 9 > drmOpenByBusid: drmGetBusid reports pci:0000:00:02.0 > (**) intel(0): Depth 24, (--) framebuffer bpp 32 > (==) intel(0): RGB weight 888 > (==) intel(0): Default visual is TrueColor > (II) intel(0): Integrated Graphics Chipset: Intel(R) GM45 > (--) intel(0): Chipset: "GM45" > (II) intel(0): Output LVDS1 has no monitor section > (II) intel(0): found backlight control interface > /sys/class/backlight/acpi_video0 > (II) intel(0): Output VGA1 has no monitor section > (II) intel(0): Output HDMI1 has no monitor section > (II) intel(0): Output DP1 has no monitor section > (II) intel(0): Output HDMI2 has no monitor section > (II) intel(0): Output DP2 has no monitor section > (II) intel(0): Output DP3 has no monitor section > (II) intel(0): Output TV1 has no monitor section > (II) intel(0): EDID for output LVDS1 > (II) intel(0): Manufacturer: SEC Model: 5443 Serial#: 0 > (II) intel(0): Year: 2008 Week: 0 > (II) intel(0): EDID Version: 1.3 > (II) intel(0): Digital Display Input > (II) intel(0): Max Image Size [cm]: horiz.: 33 vert.: 21 > (II) intel(0): Gamma: 2.20 > (II) intel(0): No DPMS capabilities specified > (II) intel(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 > (II) intel(0): First detailed timing is preferred mode > (II) intel(0): redX: 0.580 redY: 0.340 greenX: 0.310 greenY: 0.550 > (II) intel(0): blueX: 0.155 blueY: 0.155 whiteX: 0.313 whiteY: 0.329 > (II) intel(0): Manufacturer's mask: 0 > (II) intel(0): Supported detailed timing: > (II) intel(0): clock: 164.2 MHz Image Size: 331 x 207 mm > (II) intel(0): h_active: 1920 h_sync: 2020 h_sync_end 2052 h_blank_end > 2216 h_border: 0 > (II) intel(0): v_active: 1200 v_sync: 1202 v_sync_end 1208 v_blanking: > 1235 v_border: 0 > (II) intel(0): Supported detailed timing: > (II) intel(0): clock: 109.5 MHz Image Size: 331 x 207 mm > (II) intel(0): h_active: 1920 h_sync: 2020 h_sync_end 2052 h_blank_end > 2216 h_border: 0 > (II) intel(0): v_active: 1200 v_sync: 1202 v_sync_end 1208 v_blanking: > 1235 v_border: 0 > (II) intel(0): RX392<80>154CT > (II) intel(0):
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