How to disable smoothed touchpad scroll events

Hi, Somewhere arround Fedora-14 a feature was introduced somewhere (either xorg or touchpad-driver) to smooth touchpad scroll events. This causes quite some troubles, as a few Applications change their zoom-factor on Ctrl+Scroll (e.g. FireFox or Geany editor), so when pressing Ctrl+Something

xrestop shows 3 clients - each with 15mb pixmaps allocated

Hi, I am running Fedora 15, and xrestop shows 3 clients with 15mb pixmaps allocated, although no PID is shown, and two of the three clients seem to have no pixmap (0) allocated. I am using xfce 4.8 without a composition manager. Any idea whats going on? Thanks, Clemens xrestop - Display:

When was xrender 0.11 introduced?q

Hi, Does anybody remember which xorg-server version brought support for xrender 0.11? I think about not using some paths for render 0.11, however if its too recent I would probably exclude more xorg-server versions than required. Thanks, Clemens ___

Why is sizeof(XID)==8 on AMD64?

Hi, I just ran in a couple of bugs because my code assumes sizeof(XID)==4 on all platforms which doesn't seem to hold on AMD64. Whats the reason for XID to be 8bytes (unsigned long) on AMD64, I thought an x-id (in protocol sence) is defined as 4 bytes anyway? Will Xlib/xcb ever return values

Re: Why is sizeof(XID)==8 on AMD64?

Hi Matthieu, Thanks for your explanation =) This is a mistake done 25 years ago or so. It's hard to justify it, but it is so. A number of things that are 32 bits on the wire are represented as 64 bits long at the API level on LP64 machines. Is it considered more or less safe to store those

Re: Need help to diagnose slowdown problem

Hi Samuel, Usually you won't find log entries about slowdown problems unless something goes really terribly wrong. Are you using the proprietary nvidia driver or nouveau? If you are using the proprietary nvidia problem, could you switch to nouveau to see if the problem persists? To really get

Re: Composite ClipNotify fix and expose event elimination

Hi, Could it be https://bugs.freedesktop.org/show_bug.cgi?id=22566 is related to this? - Clemens 2010/12/20 ville.syrj...@nokia.com: Rather than continue my attempts to hack around the issue of incorrect ClipNotifys during window redirection changes, I decided to tackle the issue in more

Re: Any plan to promote coordinats to 32 bits?

Hi Teika, As far as I know there hasn't been a lot of development to fix that, theres not enough pain for now. Unfourtunatly it would mean re-implementing a lot of X11's core protocol as new extensions. Probably a better way to fix that would be to create X12, or to use something different like

Re: Which one to buy ?

Hi Xavier, Here comes that time again: I have to buy a graphic card, I want to buy a radeon, not too long/wide (limited space in the box), reasonably recent and powerful, to be used in a debian/sid system. What do I buy if I want 3D (compiz at least) now, or at least very soon ? I guess if

Howto create a window with ARGB32-visual?

Hi, I would like to create a Window with ARGB32-visual to reproduce a bug I experience with shaped ARGB32 windows when not using a composition manager, however I always get a BadMatch error. My attemp tried to find a 32-bit visual, and pass that to XCreateWindow: XVisualInfo info; int cnt;

Re: Howto create a window with ARGB32-visual?

Hi, The default border-pixmap and colormap are CopyFromParent.  That won't fly if your window and its parent have different depths/visuals.  That's pretty clearly explained in the protocol spec's description of CreateWindow, AFAICT. Setting a new ColorMap as well as a BorderPixmap helped :)

Re: Reasons for FreePicture to cause RenderBadPicture?

Hi Michel, Pixmaps are reference-counted and the picture takes a reference on the pixmap, so the pixmap can't go away before the picture. However this isn't true for windows, so as soon as the window is destroyed presumably the picture is destroyed as well or becomes invalid. Can this be

Howto override wrong EDID information?

Hi, I would like to use an iiyama X436S at 1280x1024 on VGA1 with my Laptop, unfourtunatly it seems the EDID information the monitor sends is bogus: VGA1 connected (normal left inverted right x axis y axis) 1024x768 60.0 800x60060.3 56.2 848x48060.0 640x480

Reasons for FreePicture to cause RenderBadPicture?

Hi, I have some code which causes RenderBadPicture errors from time to time, and I have troubles finding the cause. I have inserted some debug code and switched to synchronous mode, however I don't get an idea whats going wrong. Some pictures don't seem to cause problem, whereas other pictures

Re: Reasons for FreePicture to cause RenderBadPicture?

Hi again, Seems I have found the cause of the problem: Freeing Pictures that belong to an already destroyed window cause the RenderBadPicture error. The XID values in the error-log were wrong and therefor misleading. What puzzles me is the inconsistent behaviour: When a Window is destroyed, all

Easy way to bisect xorg-xserver?

Hi, I would like to do some bisecting to find a regression that was introduced somewhere between 1.6 and 1.7. I tried but for me as a non-developer its quite hard to get the right versions of the right libraries, and I gave up after a few hours. Is there a script which can download and build the

Re: X server 1.9 release thoughts

Hi, The question is whether driver maintainers want to deal with non-maintenance changes (like new hardware support) in the stable branch of the X server, which will require additional work as they back-port things from master. Was a bit shocked when I heard driver will be merged back into

Re: Howto limit agp aperture size?

Hi Dave, Don't think any version of nouveau ever did that. Are you sure its actually allocated the RAM? Well I don't know exactly whats going on - but when using nouveau instead of the proprietary nvidia driver, freesays memory useage is about 250mb higher than normal - which would correspond

Re: Howto limit agp aperture size?

Hi again, Using Nouveau with KMS and an unified kernel-side memory manager seems to solve the problems :) After updating to Fedora-12 I get working KMS, normal memory useage and overall way better performance. Great that I can finally remove the proprietary legacy driver! - Clemens

Howto limit agp aperture size?

Hi, Is there any way, to limit agp aperture size, maybe by passing a parameter to the agpgart module? The bios doesn't provide any setting unfourtunatly :/ Background: I am using a quite old version of nouveau (that one shipped with Fedora-11), and nouveau seems to reserve the whole apg aperture

Re: xorg-server profiling

Hi, I was wondering if someone did/does xorg profiling. any special precautions for someone who might want to try? With a new kernel + sysprof thats pretty simple - just install debuginfos and enjoy :) - Clemens ___ xorg mailing list

Re: X11 fullscreen

Man, don't have a job? Is your time worth anything to you? And by the way ... I've never read so many *strange* arguments in one discussion. (using shm ximage for normal drawing is bullshit) - Clemens 2010/1/30 Russell Shaw rjs...@netspace.net.au: Daniel Stone wrote: On Sat, Jan 30, 2010 at

Re: Slow 2D with radeon KMS

I just tried KMS with radeon driver, and 2D seems notably slow. Widgets takes time to draw, scrolling in Dolphin or Firefox lags, as if some 2D acceleration was not working alright. I experience the same, running Ubuntu-10.4-alpha2 on my HD3850. Logs look quite normal as far as I can tell. I

Re: Netbooks... really slow with OGL... can someone help me with a solution?

Hi, I am a game programmer, and I live in a country where normal computer has configurations that remember netbooks (like having VIA or SIS chipsets...). Because of that I started making a game using memory blitting instead of OpenGL, but I found that on X it runs really slow without

Re: Server crash uploading multiple glyphs at once with XRenderAddGlyphs

Hi Dave, Should I file a bugreport about this on bugzilla? What additional data would be useful to track that issue down? Could this be used as a security whole? Thanks, Clemens 2009/8/16 Clemens Eisserer linuxhi...@gmail.com Hi Dave, Can you get valgrind traces by any chance? not sure we

Re: [cairo] [xlib] Use server-side gradients.

I know this is a bit off-topic, but it came recently to my mind: Wouldn't it be possible to provide half-accelerated linear gradients by simply rendering the gradient into a temporary 1x? surface, and using the various repeat modes + the gradient transformation on that surface? This way

Server crash uploading multiple glyphs at once with XRenderAddGlyphs

Hi, I tried to enhance the glyph-upload paths of my java2d-xrender backend by uploading multiple glyphs at once, however doing so makes xorg-1.6.99.1 (Fedora rawhide ~20090810) crash quite frequently. I experienced those crashes with both vesa and the intel driver. Twice the crashes happend in

Re: Skype causes a segmentation fault (1.6.2 RC1) and restarting of the X Server

Hi Miro, I don't get that crash. If you know howto use gdb and can ssh into the machine, it would be great if you could install debug-packages and debug it yourself: http://www.x.org/wiki/Development/Documentation/ServerDebugging - Clemens ___ xorg

Why has XRenderAddGlyphs only a single images pointer?

Hi, Until now I've used XRenderAddGlyphs only one glyph at a time, but to improve efficiency I would like upload multiple glyphs per call. What confuses me however is, why there's only a single images pointer (and not an char **image), to pass the glyph-image-data. How is that supposed to be

Re: Xserver 2D Performance Decrease

Hi, I am using a program that relies on 2d APIs to draw lines and circles, and the performance of this program had an huge decrease since my change to Debian-lenny. Most likely you are now using EXA (newer intel drivers default to it), a new acceleration architecture which does no longer

Performance of XRenderCompositeTrapezoids in the aliased case

Hi, 1.) As far as I have seen the only way to get aliased rasterization with XRenderCompositeTrapezoids is to pass PictStandardA1 as mask format. However a lot of hardware can't use A1 as mask, leading to a fallback. On my 945GM I get for a 100x100 circle consisting of ~180 traps: 20ms, A8 120ms

Compiling xf86-input-keyboard fails

Hi, I just tried to compile xorg/git with the xorg-git.sh shell script, and it fails in xf86-input-keyboard with the following error: kbd.c: In function 'KbdProc': kbd.c:567: warning: passing argument 1 of 'InitKeyboardDeviceStruct' from incompatible pointer type kbd.c:567: warning: passing

Re: Compiling xf86-input-keyboard fails

Hi Chris, xf86-input-keyboard has been broken for more than a week now. Worse, the server segfaults on launch. Input folks, is someone working on landing fixes for this breakage? Yes, I experience the same - but I thought this was caused by the missing keyboard stuff. Thanks your reply,

Re: client-side font rendering very very slow in X.org xserver 1.5.3 w/r200: massive fetches from VRAM, why?

Are you using the same version of kde on both systems? IIRC kde 4 switched to using a1 surfaces for font rendering which isn't currently accelerated by EXA. Notice the _a1 fetch below. I've seen quite many different reports about slow EXA which turned out to be caused by the A1 mask format (I

Re: libXrender - documentation?

I can't see any such calls of XRender* functions in the bits of xft that I have been looking at (notably in xftcore.c). Because xft deals with Glyphs, and for performance/bandwith resons glyphs are handled in a special manner. That was what I ment with (using the XRender*Glyphs functions).

Re: libXrender - documentation?

I know that its not easy, but someone can't expect a step-by-step tutorial for such low-level stuff. hmm - the obvious conclusion is that xft is just a minor/useless library. Perhaps it should be removed, then. The whole discussion is about RENDER's documentation, not xft. Or was your

Re: libXrender - documentation?

The whole discussion is about RENDER's documentation, not xft. very well, then apply my comments to RENDER (they're both presented as libraries that no one should try to use without some other library as a sanitizing layer). Well at least the sanitizing layers still depend on libXrender...

Re: libXrender - documentation?

maybe i'm missing the point: what's the point in a library that needs another library in order to be used? i don't really think it's a good idea. maybe it would be better to better implement the library in order for it to be used without another sanitizing library, Its the same as with xcb

Re: Intel Graphics package and patch requirments

Hi, So, IMO, it's unfair to call 2008Q4 release stable and recommended to ordinary users/OSVs, at least for gma950 users. I have to agree, even 2.6.1 is still far away from release quality. I hope the whole GEM-ification is soon finished, before distributions start deploying that driver. After

Re: libXrender - documentation?

Most likely I will write some XRender documentation as part of my bachelor thesis. In a subsequent thread 2D antialiasing? on this list, I was bemoaning the fact that antialiasing by that method would waste huge amounts of bandwidth if the client were separated from the Xserver by some slow

Re: libXrender - documentation?

Hi Charles, Unfourtunatly XRender is not very well documented, probably the best thing available is the specification. The reason is that most programmers use higher-level APIs like Cairo or QT4 to access XRender, so if you don't have a good reason why you directly want to mess with it I

Re: dga does't work correctly

Which video driver are you using? You could try to switch to XAA, if you're using an open-source driver. - Clemens 2009/1/8 Pawel K pawlac...@yahoo.com: Hello It looks like DGA is not fully operational on my system: I have the following in /etc/X11/xorg.conf: SubSection extmod #

Re: Profiling redraws with Xorg 1.5.99.3

Could be. Shame the new optimised implementation of the private lookup had to be reverted on the 1.5 branch. Its not shame, its just that ABI changes don't fit in minor releases. I'm running 1.5.99, and it would appear that the patch is applied. It is a shame dixLookupPrivate is consuming so

Re: Bad 2D performance with intel driver on Mobile GM965/GL960

Hmm, I guess 11.1 uses intel-2.5, which has (at leat on my 945GM) quite a number of performance problems. Xorg-7.3 (xserver 1.5.x) also has quite a bad performance bug for dixLookupPrivate which will only be fixed for 1.6 because of API issues. If you don't use a xrender-based composition

Re: 2D antialiasing?

And that is no problem at all, until you want to throw away the glyph that was there before and write a new glyph in its place. And then you need to know what the original background behind the old glyph was, but the server does not have that information, and so it has to be kept in the

Re: 2D antialiasing?

From the plain X Server POV, antialiasing is always going to be hard, because to do it you need to know the background color or pixmap, and the Xserver does not keep track of how you had earlier set it, so it is up to individual toolkits to keep track, and not all of them do. Well, using

Re: Slow exaOffscreenAlloc ?

Hi again, We're moving from EXA to UXA, which fixes a lot of the performance problem by having an allocator that doesn't suck. The remainder of the fix would be accelerating trapezoids. Any plans to merge UXA and EXA? Having all the code duplicated doesn't seem a very wise idea. - Clemens

Re: EXA and migration [was: shrink xrender featureset]

That's not 'strong vocabulary' but simply baseless flamebait. Would it make sence to implement some fallback-optimizations like: - Copy pictures without drawables (gradients) to a temporary surface, if the driver supports composition? - Support solid write-only operations (X11 core drawing) for

Re: [IDEA] shrink xrender featureset

Trapezoids for example would require implementing a rasteriser in shaders. Pretty much everything that doesn't get accelerated these days requires shaders. Tomorrow someone might come and ask for a different type of gradient, why even bother? Well if you let me decide between software

Re: [IDEA] shrink xrender featureset

Hi, Currently there exist several operations in xrender that are better off client side or through some other graphic api (imo). Think of trapezoid rasterisation, gradient rendering, etc. Doing this stuff client side avoids unforseen migration issues and doesn't create any false impressions

Re: Better gradient handling (migration/fallbacks)

Hi, Do you think there is any chance of getting the gradient hooks into 1.6? Would not be too bad if no driver is able to accalerate it for now, but at least users would not need xserver 1.7 to get accalerated gradients. Distributors usually tend to update drivers, but they almost never switch to

Re: [PATCH] When converting from double to fixed, round carefully.

Hi, Perhaps we should extend Render to include 64-bit floating point transforms... That would be really great. I am doing some tricks with mask-transformations having quite a hard time by the fixed-point limitations, especially for large scales (like 100x). - Clemens

Better gradient handling (migration/fallbacks)

Hi, I've experienced some performance problems with gradients when working on the xrender/java2d backend. A typical problematic case is when mask and desitation picture were in VRAM, and a gradient is used as source. As far as I understand this causes mask and dst to be moved out into sysmem,

Re: Better gradient handling (migration/fallbacks)

We just need to accelerate gradients, and is where any effort in software should occur. It's on our schedule, but not for quite a while. Setting up the X Server to allow drivers to request gradients was easy last time I did it, though I've misplaced the branch it looks like. Then someone

Re: 3d very slow on 945GM using intel driver

How well do simple 3d-opengl-apps like tuxracer or openarea perform. I can both without troubles on windows, but they are not really playable on linux :-/ - Clemens 2008/10/21 Adam Lantos [EMAIL PROTECTED]: Now I tried with vblank disabled, and voilá! - 860fps. So I guess that was the problem,

Re: Is interpolation of image-border specified by Render?

Where do these transformation matrices come from? They were created by the Java AffineTransform class. I just dumped it and copied it into the C file. I basically get an AffineTransformation instance (set by the user), inverse it and set it on the source. For the mask I do exactly the same,

Re: Is interpolation of image-border specified by Render?

Hi Maarten, Do you have a test program or at least share the transformation matrix you're using, because i'm curious why it fails so badly. Yes I created one, http://pastebin.com/f729a71aa The testcase works perfectly with pixman (even with much higher scale), but on intel seems the mask has

Re: Is interpolation of image-border specified by Render?

-case which does not depend on that behaviour, but seems not that easy :-/ Thanks for your patience, Clemens 2008/10/18 Maarten Maathuis [EMAIL PROTECTED]: On Sat, Oct 18, 2008 at 12:52 PM, Clemens Eisserer [EMAIL PROTECTED] wrote: Where do these transformation matrices come from? They were

ProcPutImage calls exaDoMoveOutPixmap, 4x slowdown

Hi Michel, Thanks a lot for your investigation. Does the attached xserver patch help? Looks like we're syncing unnecessarily in the migration no-op case. Yes, a lot. My benchmark went up from ~12fps to ~19fps and the fallback is gone according to the profile. I am still only at 50% of

ProcPutImage calls exaDoMoveOutPixmap, 4x slowdown

Hello, I've a use-case where the client uploads 32x32 A8 images to an 256x256x8 pixmap which is later used as mask in a composition operation. The test-case is able to render with 40fps on xserver-1.3/intel-2.1.1 however with the latest GIT of both I only get ~10-15fps. Unfourtunatly I've not

Re: ProcPutImage calls exaDoMoveOutPixmap, 4x slowdown

Hi, There is ofcource a fallback system, which is pretty much a memcpy. Ah, I guess that was that memcpy I always saw in moveIn / moveOut ;) intel has never had an UploadToScreen hook. Ah interesting, because I saw 4x better performance with intel-2.1.1 / xserver-1.3. With this configuration

Re: ProcPutImage calls exaDoMoveOutPixmap, 4x slowdown

Sorry for the email flood ... 2.1.1 probably used XAA as default, which didn't try to accelerate much. No, the results were with EXA enabled - although results with XAA are again magnitudes better ;) Thanks, Clemens ___ xorg mailing list

Re: ProcPutImage calls exaDoMoveOutPixmap, 4x slowdown

Hi, I think this is because intel does not provide an UploadToScreen hook (because it has no vram). It hasn't made (visible) effort to reintegrate UXA in EXA, Btw. I was using EXA without GEM. Has the UploadToScreen hook been removed when preparing the driver for UXA and/or GEM? One thing

Re: XTerm exits immediatly with self-compiled xorg

I think you need to build xserver with --disable-builtin-fonts. Thanks a lot, that worked :) /etc/fonts/ is configuration for the fontconfig library, not the X server. Ah, ok. Thanks, Clemens ___ xorg mailing list xorg@lists.freedesktop.org

XTerm exits immediatly with self-compiled xorg

Hello, I am currently trying to build xorg from git, and it mostly works except some font stuff. When I try to start xterm it quits immediatly with the following messages: The XKEYBOARD keymap compiler (xkbcomp) reports:^M Warning: Type ONE_LEVEL has 1 levels, but RALT has 2 symbols^M

Re: pixman with and without SSE2 benchmarks?

I'd bet against that :-). Core 2 has magnificent SSE performance indeed, but that's true for MMX just as well. Well, Core2 (and AMD K10) got support for 128bit operations per clock, whereas previous processors only supported 64bit at once, and took 2 cycles for 128 bit operations. MMX is just

Re: Poll: Should Xorg change from using Ctrl+Alt+Backspace to something harder for users to press by accident?

no ___ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg