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Re: X11 display terribly slow after upgrade

"Andrew J. Barr" <andrew.james.barr@gmail.com> writes:

> Zlatko Calusic wrote:
>> Hello!
>> First post to the list after a looong time, so be gentle. :)
>> I'm using lenny/sid distribution. Few days ago, after Xorg packages
>> got upgraded to 1.3.0, display became very slow. Every redrawing,
>> every scroll, it's all slow. On one machine it's actually unusable
>> (Radeon Xpress 200M), on this one (Radeon 9500 Pro) it's just very
>> slugish and annoying, feels like I'm running on P166 (instead of
>> E6600).
>> Is this a known bug? I'm quite surprised only I've noticed this (I
>> went through the list archives). Also, it's quite hard to report this
>> as a bug, because X11 is composed of so many packages, I don't know
>> where to start. :(
> Are you using the free radeon driver or fglrx? If you are using the
> free driver, post your xorg.conf here as well as if you are using a
> compositing manager or not. If you are, tell us whether it uses GLX
> (3D) or RENDER (2D).

I was so desperate to try even without my xorg.conf (it used built-in
which was a news for me :)) then with and without glx/dri, XAA vs
EXA... but nothing helped. Anyway, here's my xorg.conf & kernel
configuration at the bottom:

Section "Files"
	FontPath	"unix/:7100"

Section "ServerFlags"
	Option		"BlankTime"		"8"
	Option		"StandbyTime"		"10"
	Option		"SuspendTime"		"10"
	Option		"OffTime"		"10"

Section "Module"
	Load		"type1"
	Load		"freetype"
	Load		"dbe"
	Load		"record"
	Load		"xtrap"
	Load		"extmod"
	Load		"glx"
	Load		"dri"

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"AutoRepeat"		"250 30"
	Option		"XkbLayout"		"hr"
	Option		"XkbVariant"		"us"

Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"false"
	Option		"ZAxisMapping"		"4 5"

Section "Device"
	Identifier	"ATI Radeon"
	Driver		"ati"
	Option		"IgnoreEDID"		"on"
	Option		"AGPMode"		"4"
	Option		"GARTSize"		"128"
	Option		"AccelMethod"		"EXA"
	Option		"AccelDFS"		"on"
	Option		"EnablePageFlip"	"on"

Section "Extensions"
	Option		"Composite"		"Enable"

Section "Monitor"
	Identifier	"Acer AL712"
	HorizSync	24-80
	VertRefresh	56-75
	Option		"DPMS"

Section "Screen"
	Identifier	"Default Screen"
	Device		"ATI Radeon"
	Monitor		"Acer AL712"
	DefaultDepth	24
	SubSection "Display"
		Depth	24
		Modes	"1280x1024" "1024x768" "800x600" "640x480"

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Generic Mouse"


On the other machine, xorg.conf is identical (I just commented out
AGPMode and GARTSize), but I don't have anything compiled in the
kernel. That's an unrelated question, but I would be glad if someone
gave me a pointer: when I have an AGP card I enable AGP in the kernel,
and DRM for the specific card, what is the procedure with PCIe card
(e.g. Radeon Xpress 200M)? I sure do need to RTFM on this topic, good
pointer to such would be appreciated.

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