SNA acceleration forced for no reason

bbarcher · 2014-06-10 20:48:40

Why is it a default now even for my old GMA45? Or is it a quirk on my system? I'm pretty sure it was not the default when I installed my system back in February 2014, contrary to what https://wiki.archlinux.org/index.php/In … ion_method says.

# journalctl -e /usr/bin/Xorg | grep -i sna
Jun 10 21:02:32 arch3 gdm-Xorg-:0[404]: (II) intel(0): SNA initialized with Eaglelake (gen4.5) backend
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): SNA initialized with Eaglelake (gen4.5) backend

# journalctl -e /usr/bin/Xorg | grep -i uxa

# cat /etc/X11/xorg.conf.d/20-intel.confcat: /etc/X11/xorg.conf.d/20-intel.conf: No such file or directory

# journalctl -e /usr/bin/Xorg | grep -i intel
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) Matched intel as autoconfigured driver 0
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) Matched intel as autoconfigured driver 1
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) LoadModule: "intel"
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) Module intel: vendor="X.Org Foundation"
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel: Driver for Intel(R) HD Graphics: 2000-5000
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (--) intel(0): Integrated Graphics Chipset: Intel(R) GM45
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): Creating default Display subsection in Screen section
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): Depth 24, (--) framebuffer bpp 32
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): RGB weight 888
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): Default visual is TrueColor
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (**) intel(0): Framebuffer tiled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (**) intel(0): Pixmaps tiled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (**) intel(0): "Tear free" disabled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (**) intel(0): Forcing per-crtc-pixmaps? no
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): Output LVDS1 has no monitor section
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (--) intel(0): Found backlight control interface acpi_video0 (type 'firmware') for output LVDS1
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): Output VGA1 has no monitor section
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): Output DP1 has no monitor section
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): Output VIRTUAL1 has no monitor section
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (--) intel(0): Output LVDS1 using initial mode 1680x1050 on pipe 0
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): DPI set to (96, 96)
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): SNA initialized with Eaglelake (gen4.5) backend
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): Backing store enabled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): Silken mouse enabled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): HW Cursor enabled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): RandR 1.2 enabled, ignore the following RandR disabled message.
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): DPMS enabled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): [XvMC] xvmc_vld driver initialized.
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): [DRI2] Setup complete
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): [DRI2]   DRI driver: i965
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): [DRI2]   VDPAU driver: i965
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): direct rendering: DRI2 Enabled
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (==) intel(0): hotplug detection: "enabled"
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) AIGLX: enabled GLX_INTEL_swap_event
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): switch to mode 1680x1050@60.0 on LVDS1 using pipe 0, position (0, 0), rotation normal, reflection none
Jun 10 22:35:16 arch3 gdm-Xorg-:0[428]: (II) intel(0): Setting screen physical size to 444 x 277
Jun 10 22:35:18 arch3 gdm-Xorg-:0[428]: (II) intel(0): EDID vendor "IBM", prod id 10375
Jun 10 22:35:18 arch3 gdm-Xorg-:0[428]: (II) intel(0): Printing DDC gathered Modelines:
Jun 10 22:35:18 arch3 gdm-Xorg-:0[428]: (II) intel(0): Modeline "1680x1050"x0.0  120.60  1680 1712 1760 1888  1050 1051 1054 1065 -hsync -vsync (63.9 kHz eP)
Jun 10 22:35:18 arch3 gdm-Xorg-:0[428]: (II) intel(0): Modeline "1680x1050"x0.0  100.53  1680 1712 1760 1888  1050 1051 1054 1065 -hsync -vsync (53.2 kHz e)

Last edited by bbarcher (2014-06-10 20:56:53)

karol · 2014-06-10 20:56:48

That's the default for intel drivers. Create a config file and set it to UXA if you want.
https://bugs.archlinux.org/task/36466

Edit:

$ grep -i sna /var/log/Xorg.0.log
[    27.511] (II) intel(0): SNA compiled from 2.99.911-219-g792584f
[    27.515] (**) intel(0): Option "AccelMethod" "sna"
[    27.517] (II) intel(0): SNA initialized with Almador (gen2) backend

Last edited by karol (2014-06-10 21:00:09)

bbarcher · 2014-06-10 21:04:30

Re #2. Yup, it does work.

PS. Is /var/log/Xorg.0.log still valid with systemd? I've deleted Xorg.* logs and they haven't got re-created after reboot.

Last edited by bbarcher (2014-06-10 21:07:58)

Head_on_a_Stick · 2014-06-10 21:16:51

bbarcher wrote:

PS. Is /var/log/Xorg.0.log still valid with systemd?

Systemd has taken over log functionality with journalctl --- I think it's an improvement, see man journalctl for all the options

bbarcher · 2014-06-10 21:28:55

Head_on_a_Stick wrote:

bbarcher wrote:
PS. Is /var/log/Xorg.0.log still valid with systemd?
Systemd has taken over log functionality with journalctl --- I think it's an improvement, see man journalctl for all the options

That's what I've heard Thanks.

Arch Linux

#1 2014-06-10 20:48:40

SNA acceleration forced for no reason

#2 2014-06-10 20:56:48

Re: SNA acceleration forced for no reason

#3 2014-06-10 21:04:30

Re: SNA acceleration forced for no reason

#4 2014-06-10 21:16:51

Re: SNA acceleration forced for no reason

#5 2014-06-10 21:28:55

Re: SNA acceleration forced for no reason

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