Re: Very bad performance from intel chipset on Thinkpad T540p (2880x1620)

[Marc MERLIN <marc_xorg@merlins.org>]

[-- Attachment #1: Type: text/plain, Size: 4071 bytes --]

On Fri, Apr 24, 2015 at 04:53:53PM +0100, Chris Wilson wrote:
> Whether of not it tears depends upon your window manager. On bare X,
> using mplayer -vo xv or -vo gl, should not tear. Under a compositing
> window manager, it depends upon how it decides to update the screen. To
> force everything to update without tearing, use
> 
> echo > /etc/X11/xorg.conf.d/90-intel.conf <<EOF
> Section "Device"
> 	Identifier "igfx"
> 	Option "TearFree"
> EndSection
> EOF

So, I added this at the end of my xorg.conf, but Xorg.0.log says:
'intel(0): TearFree disabled'

Any idea why?

[   272.438] (II) xfree86: Adding drm device (/dev/dri/card0)
[   272.852] (--) PCI:*(0:0:2:0) 8086:0416:17aa:2210 rev 6, Mem @ 0xf0000000/4194304, 0xe0000000/268435456, I/O @ 0x00004000/64
[   272.852] (II) "glx" will be loaded by default.
[   272.852] (II) LoadModule: "glx"
[   272.852] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[   272.853] (II) Module glx: vendor="X.Org Foundation"
[   272.853] 	compiled for 1.16.4, module version = 1.0.0
[   272.853] 	ABI class: X.Org Server Extension, version 8.0
[   272.853] (**) AIGLX enabled
[   272.853] (II) LoadModule: "intel"
[   272.853] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[   272.853] (II) Module intel: vendor="X.Org Foundation"
[   272.853] 	compiled for 1.16.2.901, module version = 2.99.917
[   272.853] 	Module class: X.Org Video Driver
[   272.853] 	ABI class: X.Org Video Driver, version 18.0
[   272.853] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
	i810, i810-dc100, i810e, i815, i830M, 845G, 854, 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
[   272.854] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[   272.854] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[   272.854] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300
[   272.854] (++) using VT number 8

[   272.866] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20141121
[   272.866] (II) intel(0): SNA compiled: xserver-xorg-video-intel 2:2.99.917-1~exp1 (Vincent Cheng <vcheng@debian.org>)
[   272.867] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 4600
[   272.867] (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx, avx2
[   272.867] (==) intel(0): Depth 24, (--) framebuffer bpp 32
[   272.867] (==) intel(0): RGB weight 888
[   272.867] (==) intel(0): Default visual is TrueColor
[   272.867] (II) intel(0): Output eDP1 using monitor section Monitor0
[   272.867] (--) intel(0): Found backlight control interface intel_backlight (type 'raw') for output eDP1
[   272.867] (II) intel(0): Enabled output eDP1
[   272.867] (II) intel(0): Output VGA1 has no monitor section
[   272.867] (II) intel(0): Enabled output VGA1
[   272.867] (II) intel(0): Output DP1 has no monitor section
[   272.867] (II) intel(0): Enabled output DP1
[   272.867] (II) intel(0): Output HDMI1 has no monitor section
[   272.867] (II) intel(0): Enabled output HDMI1
[   272.867] (II) intel(0): Output DP2 has no monitor section
[   272.867] (II) intel(0): Enabled output DP2
[   272.867] (II) intel(0): Output HDMI2 has no monitor section
[   272.867] (II) intel(0): Enabled output HDMI2
[   272.867] (--) intel(0): Using a maximum size of 256x256 for hardware cursors
[   272.867] (II) intel(0): Output VIRTUAL1 has no monitor section
[   272.867] (II) intel(0): Enabled output VIRTUAL1
[   272.867] (--) intel(0): Output eDP1 using initial mode 2880x1620 on pipe 0
[   272.867] (==) intel(0): TearFree disabled
[   272.867] (==) intel(0): DPI set to (96, 96)
[   272.867] (II) Loading sub module "dri2"
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901

[-- Attachment #2: xorg.conf --]
[-- Type: text/plain, Size: 3410 bytes --]

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

#Section "Files"
#	ModulePath   "/usr/lib/xorg/modules"
#	FontPath     "/usr/share/fonts/X11/misc"
#	FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"
#	FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"
#	FontPath     "/usr/share/fonts/X11/Type1"
#	FontPath     "/usr/share/fonts/X11/100dpi"
#	FontPath     "/usr/share/fonts/X11/75dpi"
#	FontPath     "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
#	FontPath     "built-ins"
#EndSection

Section "Module"
	#Load  "vnc"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
        Option          "XkbRules"      "xorg"
	Option          "XkbModel"      "pc105"
	Option          "XkbLayout"     "us"
	Option  "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection

# This is needed by the new dbus keyboard driver.
Section "InputClass"
    Identifier          "Keyboard Defaults"
    MatchIsKeyboard	"yes"
    Option              "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection


Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/input/mice"
	Option	    "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection


Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "NoAccel"            	# [<bool>]
        #Option     "SWcursor"           	# [<bool>]
        #Option     "ColorKey"           	# <i>
        #Option     "CacheLines"         	# <i>
        #Option     "Dac6Bit"            	# [<bool>]
        #Option     "DRI"                	# [<bool>]
        #Option     "NoDDC"              	# [<bool>]
        #Option     "ShowCache"          	# [<bool>]
        #Option     "XvMCSurfaces"       	# <i>
        #Option     "PageFlip"           	# [<bool>]
	Identifier  "Intel GM45"
	Driver      "intel"
	VendorName  "Intel Corporation"
	BoardName   "Mobile 4 Series Chipset Integrated Graphics Controller"
EndSection



Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

# Custom

Section "DRI"
	Mode	0666
EndSection

# http://www.x.org/wiki/IntelGraphicsDriver
# http://intellinuxgraphics.org/
Section "ServerFlags"
	Option  "AIGLX" "on"
	# this would disable hotplugging that creates this:
	# (WW) Hotplugging is on, devices using drivers 'kbd', 'mouse' or 'vmmouse' will be disabled.
	# (WW) Disabling Mouse0
	# (WW) Disabling Keyboard0
	# More info here: https://wiki.archlinux.org/index.php/Xorg#Disabling_Input_Hot-plugging
	#Option "AutoAddDevices" "False"
	# https://wiki.ubuntu.com/X/Backtracing
	Option "NoTrapSignals" "true"
	#For instance, to start Xorg from within gdb (over a ssh connection), start gdb:
	#sudo gdb /usr/bin/Xorg 2>&1 | tee gdb-Xorg.txt
	#inside gdm, start up Xorg:
	#(gdb) run -keeptty -dumbSched
EndSection

Section "Extensions"
	Option		"Composite"	"Enable"
EndSection

Section "Device"
      Identifier "igfx"
      Option "TearFree"
EndSection

[-- Attachment #3: Type: text/plain, Size: 159 bytes --]

_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx