Massive artifacts, redraw and performance problems: xorg 1.8 and Intel

Hi there.
Since the update to xorg-server 1.8 my intel GMA950 powered lap top is seriously acting up.
*Performance has dropped significantly, Games or compiz run slower than before
*Font drawing is sometimes garbled, sometimes not
*Some windows or parts of windows (sometimes only the decorations) show artifacts
*Drawing of fonts while typing is delayed by 1 or more characters sometimes
It might be related to this bug or the problem described in this thread.
Just look at this screenshot:
I tired moving xorg.conf, I tried running compiz with --indirect-rendering, I tried all kinds of options in xorg.conf and all but it just remains broken like this. Has anyone got similar problems and a solution?
Last edited by Shapeshifter (2010-06-28 15:07:21)

I've been having the same issue but not to the extent of the OP.
I read the man for intel
man intel
and added these three lines to my xorg.conf
Option "XvPreferOverlay" "false"
Option "SwapbuffersWait" "false"
Option "Tiling" "false" #{edit: after doing some testing I found tiling made no differnece so I ended up commenting it out}
The first option I added because the man says
The overlay
behaves incorrectly in the presence of compositing, but some
prefer it due to it syncing to vblank in the absence of com‐
positing
I use compiz ergo i have compositing and I noticed my video tearing and skipping sometimes. Seems to work fine now (more testing will be required)
The second option I added because the man says
Note that when enabled, this option can
adversely affect the framerate of applications that render
frames at less than refresh rate.
I have a hunch compiz probably isn't rendering at the refresh rate and also video would be rendered at less than my vert refresh of 60. So I disabled it.
The third and last option I added was because the man says
In most cases (especially for complex rendering),
tiling dramatically improves performance.
Well this may be a case where it doesn't and the posters above have noticed improvements. {edit: after doing some testing I found this made no differnece so I ended up commenting it out}
In the end moving windows around the screen do not tear anymore and my video is smoother. I enabled all three at once so it maybe that one or a combination of 2 or possibly all 3 resulted in change. I suspect I will do some more testing but hopefully this is a place to start fro some of you having this issue.
Last edited by George.Harmony (2010-07-11 21:21:17)

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Edmond,
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I'll answer your third complaint first. Without knowing exactly what model laptop you have and exactly what you are trying to do with it there is no way for anyone to have any idea why it's slow. Heck, we can't even tell if it's actually slow, or if you are trying to do something that the laptop isn't capable of doing, or at least doing well.
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Since Toshiba support personnel are prohibited from posting in the forums it's doubtful that you'll be able to to get a definitive answer from them without calling them on the telephone and talking to an actual support person. They don't provide actual support any other way. All we have here are end users like yourself doing what they can to help other end users.
Your second issue about only displaying half page has normally been a display driver issue from my experience. Make sure you have the latest display driver for you specific laptop and see if that helps. If that doesn't, you might need to download and install a display driver direct from Intel, MAD/ATI, or nVidia to see if that corrects the problem. Doing that can be tricky and since you didn't bother to identify your specific laptop there is no way for us to know what display chipset you need.
The only other thing that I can think of is that your video subsystem is failing. Either a loose or faulty internal cable, failing display panel, failing display chipset, or some other portion of the subsystem. You could try connecting to an external display the next time you have an issue to see if that works better or not. Otherwise take it to a certified techinician and have it thoroughly checked out.
Also, check the Product Support Link at the top of this page for your specific model. Check the support bulletins for it to see if they list any issues or fixes that might pertain to your situation and model.
If you don't post your COMPLETE model number it's very difficult to assist you. Please try to post in complete sentences with punctuation, capitals, and correct spelling. Toshiba does NOT provide any direct support in these forums. All support is User to User in their spare time.

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My brother and I recently assembled my new computer. Since then I’ve been experiencing two problems that really bug me. I’m no expert at this stuff so if you guys need more info from me to try to help, just say so!
Problem 1:
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I’ve seen that other people on this board have had similar problems. Note that I’ve set CPU Ratio to Auto and SDRAM Timing to SPD. What could be causing the problem? Could a simple BIOS update help (I’m running the one that was delivered with the motherboard)? How about clearing CMOS?
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All of a sudden, while surfing the net or gaming, the computer will dump to a blue screen with the info that Windows has been shut down to prevent further damage to the system. One of two error messages will be displayed:
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The system I have is the following:
KT6 Delta (MS-6590) motherboard
AMD Athlon XP2500+ (1.833 Ghz)
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TDK CD-RW (40x/10x/40x)
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judd321: couldn't agree more! Thanx to all the people who post here and try to help out computer illiterate people like myself. Interesting to see that you've had the same problem.
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I've just invested in an Aspire 520W (looks creepy and mod-ish). The dealer claimed that it really does deliver 520W at maximum performance and not just at peak. Before I install it I will try the following just to make sure it's the PSU that's causing me problems:
1) Confirm that I still cannot boot up with CPU Clock at 166Mhz. If all is still the same, Windows won't even start. If I, by the grace of the good Lord, do get my system running at 166, I'll monitor unwanted reboots. If system is stable, fine. If no:
2) I'll start by clearing CMOS, with battery and power cord out for at least 10 minutes. Then enter BIOS and run default settings EXCEPT CPU Clock which I'll set to 166Mhz. I'll try to reboot computer to see if this has done the trick. If yes, great. If no, I'll try the same thing but also set memory speed to 333. If that still doesn't work:
3) Clear CMOS with power cord disconnected. Unplug unneccesary components like CD-ROM, fan (not heatsink , floppy drive, any USB devices and my old IDE hard drive. Reboot the computer and set CPU Clock at 166. If the system works, it was definitely the PSU since the absence of the disconnected components will have allocated more power to the connected components. If it doesn't work...does anybody want to buy a pretty decent system that doesn't allow for full processor power and experiences frequent, unwanted reboots?
I'll let you know how things work out!

Linkage and performance problems with "Additional source folders"

Hello
There seems to be a some problems when using "additional source folders" in Flash Builder 4.5 and 4.5.1 (links to folders outside a project see pic below). Hopefully I'm doing something wrong and some kind soul could point it out.
I have a library project which is referenced from a Flex application. When I try to use the tools to go to any of the declarations in the library project from the flex application project, I get a "Code Navigation Error" insetad of seeing the source code in the library project:
Typeing with code completion turned on is super-duper slow, characters take around half a second to appear.
What would really help is to know if there's a way to tell Flash Builder how to locate the source files for library swc's, and if there was a way to improve the performance of the text editor.

Thanks for replying.
I didn't specifically embed the source. How would one do that? I tried the "-debug" additional compiler option (from here http://help.adobe.com/en_US/flex/using/WS2db454920e96a9e51e63e3d11c0bf69084-7ad5.html) but I get an error saying "Option -debug cannot be used when compiling in Flash Builder":
I also did add the common swc into the libraries path using "Add project" in the Flex Application project:
The linked source folders are in the library project, however I still get the same problem wven when not using linkled source folders so I don't think that is the cause:

Startup and performance problems

Hi Community!
First of all, i don't expect to get a good answer to this. I've search for three days for these specific errors, and thought i should share my experiences with other users with similiar problems. I ran Apple Hardware Diagnostics and finally got some sort of clue as to whats wrong with my computer. The exact error code i received was: 4SNS / 1 / 40000000 : IC0C - 51.511. However the only information i've been able to find about that specific error code (IC0C) was: "Current Sensor on CPU 0". And just for the fun of it, iStat Pro reports that the processor uses 51.51A wich to me sounds really high, but i havn't found any relevant info about how many amps this processor is supposed to use.
My Specs:
MacBook Pro (6.2) mid-2010 edition.
15" antiglare highres
8GB Ram
i7-620m 2.66Ghz
7200rpm 512GB harddrive
Mac OS X 10.6.7
Boot ROM Version: MBP61.0057.B0C
SMC Version (system): 1.58f16
My issues:
I have a couple of really annoying problems with this computer:
First of all the most recent issue, it wont start! Or at least it wont boot unless i press and hold the power button for several seconds until the led indicator blinks rapidly. If i've put it to sleep, when i wake it up it will show the desktop for 1-2 seconds, then it will just die. It wont matter if i have it plugged in with the power cord or running on battery.
My second issue is its poor performance, it's about less than a third as fast as it should be when compared to a friends almost identical computer (the only difference is the screen and the harddrive). And by this i mean pure computing power. http://db.xbench.com/merge.xhtml?doc1=521138&doc2=521137 yeah i know, xbench is a bit long in the tooth but when two nearly identical computers differ that much in the same test something is clearly wrong.
Also as a bonus to the strange behaviours above, my fans sometimes start spinning at 6000rpm and gets stuck there until i shut down the computer or put it to sleep. Neither iStat Pro or SMCFanControl can lower the speed of the fans when they've started running at that speed. And there seems to be no reason for them to run that high as the temperature is below 40C on cpu and around 50C on the gpu. However i've seen a lot of posts about this specific issue, and there was some talk about the power supply sensor being out of whack.
What i've tried:
Reset SMC several times
Reset PRAM several times
Tried to boot from another harddrive
Completely erased harddrive and reinstalled a fresh copy of OS X
Apple Hardware Diagnostics (And finally got something to indicate an error)
Tried reinstalling EFI firmware, but it won't let me (Unsupported Hardware....)
Nothing has worked so far. I will return this computer as soon as it's possible. But i'm too curious as to what that error really means and can that error really be the root cause of my problems? Or rather is the SMC/mainboard faulty?
Sincerly
Fredrik

I think 4SNS might not always be temperature sensors, i think it can be any of the values you can derive from the SMC.
In this case i'm most interested in this specific error code: IC0C (Current Sensor on CPU 0). I'm guessing there's some secrecy going around Apples error codes and therefore there might not be a good answer to this
If i might throw out an uneducated guess, it could be that the voltage/amperage sensor on CPU 0 reports an invalid value and therefore the computer won't start normally to protect itself in case the amperage would be too high.
The reason i ask, is because there might be others out there with this specific error and symptoms that's also curious as to what the cause might be. The correct solution for the problem however is to send it in of course
So i will send the computer a.s.a.p as you suggest Michael.

Massive artifacts, redraw and performance problems: xorg 1.8 and Intel

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