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#1
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AMD Athlon LE-1620 BUGGED??
http://silverlight.net/forums/t/76402.aspx
"This processor has a known problem when using early BIOS versions. The symptom of that problem is exactly what you describe (Media playback speed is not as expected)". Is it true or it smells like fake? |
#2
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AMD Athlon LE-1620 BUGGED??
On Fri, 13 Mar 2009 15:11:58 GMT, Floppo
wrote: http://silverlight.spam/forums/t/76402.aspx "This processor has a known problem when using early BIOS versions. The symptom of that problem is exactly what you describe (Media playback speed is not as expected)". Is it true or it smells like fake? The answer is easy - It doesn't matter, just dump Silverlight and play videos like normal people do. However, the other answer is no, a particular processor is not going to cause video playback to be too fast. |
#3
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AMD Athlon LE-1620 BUGGED??
kony ha scritto:
The answer is easy - It doesn't matter, just dump Silverlight and play videos like normal people do. Many web sites are starting to use silverlight for their media contents like live tv streams and videos. Without silverlight I can't play those media contents. That's the problem. |
#4
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AMD Athlon LE-1620 BUGGED??
Floppo wrote:
kony ha scritto: The answer is easy - It doesn't matter, just dump Silverlight and play videos like normal people do. Many web sites are starting to use silverlight for their media contents like live tv streams and videos. Without silverlight I can't play those media contents. That's the problem. That thread does not include a complete problem analysis. We cannot tell from it, whether Silverlight and that processor have a problem or not. You could play with "usepmtimer". You should have the "CPU driver" installed, downloaded from the www.amd.com website. This thread discusses setting up a modern AMD processor in WinXP. http://forum.notebookreview.com/showthread.php?t=60416 You can also play with affinity setting on the Silverlight program, if it has a separate entry in Task Manager. So there are a few more experiments and checks that should be run, before concluding a "processor is bugged". Disabling Cool N' Quiet temporarily, would be another test case. Paul |
#5
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AMD Athlon LE-1620 BUGGED??
Paul ha scritto:
You could play with "usepmtimer". You should have the "CPU driver" installed, downloaded from the www.amd.com website. I already installed the latest driver and I already have the /usepmtimer option in boot.ini. You can also play with affinity setting on the Silverlight program, if it has a separate entry in Task Manager. Silverlight has not a separated entry. I tried to change the affinity for the iexplorer.exe process but the change doesn't produce any effect. Disabling Cool N' Quiet temporarily, would be another test case. I tried to install PowerNowDashboard Amd utility but it ends saying processor not supported. I don't know if my processor supports cool n quiet technology. |
#6
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AMD Athlon LE-1620 BUGGED??
Floppo wrote:
Paul ha scritto: You could play with "usepmtimer". You should have the "CPU driver" installed, downloaded from the www.amd.com website. I already installed the latest driver and I already have the /usepmtimer option in boot.ini. You can also play with affinity setting on the Silverlight program, if it has a separate entry in Task Manager. Silverlight has not a separated entry. I tried to change the affinity for the iexplorer.exe process but the change doesn't produce any effect. Disabling Cool N' Quiet temporarily, would be another test case. I tried to install PowerNowDashboard Amd utility but it ends saying processor not supported. I don't know if my processor supports cool n quiet technology. I think your processor is a single core, rather than a dual core. So the affinity thing in Task Manager, should only have had one tick box. In other words, that suggestion is a dead end. I thought the processor was a dual initially, but looked it up on Wikipedia and it is a single core. I don't know if this is related to there only being one CPU core. On the one hand, it means no problem transferring timer information between cores. So one source of timing problems is removed. But Cool N' Quiet could still change things. Go to Control Panels and use the Power control panel. Instead of "Minimal Power", use "Always On", which should run the CPU at full speed all the time. Then check the video again. If you want to monitor the CPU speed in real time, try CPUZ. This is a Windows program. It doesn't cause enough loading on the CPU, to cause it to rise above the idle desktop setting, so if the CPU is normally running at the lower core clock speed, you should be able to see both states for your CPU. Your Power control panel would have to be "Minimal Power" for the CPU to be moving between two different clock speeds. When using a higher power scheme, such as "Always On", the CPU should remain at the high clock setting all the time. http://www.cpuid.com/cpuz.php ******* I have another test case for you to run. There is a port of Silverlight available in Linux. The plugin is called Moonlight. This is the sequence I used to test video playback in Linux. 1) Boot a Linux LiveCD. This allows testing without any data being stored on a hard drive. I used my Knoppix 5.3.1 DVD for this test. (knopper.net is the main web site for Knoppix.) 2) My version of Firefox was out of date. Using the Iceweasel (Firefox with name change) browser on Knoppix (icon at bottom of screen), you can download the latest version of Firefox for Linux (3.0.7 ?). It is a bzip2 file. Open the home directory, using the icon at the bottom of the screen. Move the downloaded bzip2 file onto the home directory. 3) Open a terminal window. Execute this to unpack the file. The folder "firefox" is the result. Change directory so you're inside the new firefox folder. bzip2 -c -d firefox.tar.bz2 | tar xf - cd firefox 4) Now, you're in the Firefox directory. Exit the Iceweasel browser, as you're now going to start the new 3.0.7 browser. Type this in the terminal window. The "&" on the end, forks the command, so you can use the terminal window for other commands if you want. ./firefox & 5) Firefox 3.0.7 should now be running. Go here next. http://go-mono.com/moonlight Click the icon, to download the plugin. Firefox will prevent it. Use the edit button at the top of the screen, where the error popped up, to give the go-mono site permission to load the plugin. That is the first step. You can verify the plugin is there, using the Tools:Add-Ons menu item. There should be one entry there for Moonlight. 6) Now, for movie viewing, you need a media pack (basic codecs). There is a trick to this. If you go to a Silverlight web page with a movie on it, a popup will offer you a codec pack. Accept it. The codec pack will be stored in a plugins folder. The folder would be down in ~/.mozilla , as that is where the dynamic junk for Firefox is stored (in your home directory). Now, the problem is, the codec pack just downloaded, is 249KB and is the wrong file. What happens next, is the browser crashes. You'll need to do ps aguwwwx | grep firefox to list the currently running processes. The one with a fairly large memory allocation, is the one you can kill. It has a process ID or PID. Say that pid is 4709 for example. You'd do kill -9 4709 and that should clean up Firefox. 7) Well, now you'd like to get the real codec pack. It is mentioned on this page. http://wiki.multimedia.cx/index.php?...ght_Codec_Pack For X86 (32 bit Linux, like my Knoppix CD), it is http://go.microsoft.com/fwlink/?LinkId=133186 That's right, you're downloading a file for a Linux computer, from the Microsoft web site. silverlight-media-pack-linux-x86-5-1.so 2,119,776 bytes Put that in the plugins folder, in place of the other file. If you use the file manager window, you can move the file into place with your mouse. The download would be sitting on the desktop by default. 8) Now, it is time to test Moonlight (Silverlight). Some test pages are mentioned here. http://go-mono.com/moonlight/MoonlightStatus.aspx This site will play a Silverlight video for you. http://www.mason-zimbler.com/festivegreetings/ I couldn't go to the RAI site and play the video there, because I'm in Canada, and RAI only plays for Italians. In any case, the movie played fine for me, and appeared to run at normal speed on my Core2 Duo processor. You can try this test if you want, to see if the Linux OS results in smooth video playback, at the correct speed. If the processor is "bugged", then the video should be bad in both OSes. Paul |
#7
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AMD Athlon LE-1620 BUGGED??
Paul ha scritto:
Cool N' Quiet could still change things. Go to Control Panels and use the Power control panel. Instead of "Minimal Power", use "Always On", which should run the CPU at full speed all the time. Then check the video again. I tried but the video is still played too fast. I have another test case for you to run. There is a port of Silverlight available in Linux. The plugin is called Moonlight. Oh linux, too hard for me to set up a working live linux with wifi supporto to donwload FF and Moonlight... But now you say it, I recently used a live linux cd, Backtrack 4, and I see during the boot process something about timing and/or bug... Now I go to see and I let you know. |
#8
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AMD Athlon LE-1620 BUGGED??
Floppo ha scritto:
Linux reported error during boot process is: "MP-BIOS bug: 8254 timer not connected to IO-APIC" I disabled "ACPI APIC support" from bios and then linux boot without the warning. BUT. Windows crashes during boot if I keep ACPI APIC support disabled! My God... I don't know if that problem can be connected with too fast video playing. |
#9
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AMD Athlon LE-1620 BUGGED??
Floppo wrote:
Floppo ha scritto: Linux reported error during boot process is: "MP-BIOS bug: 8254 timer not connected to IO-APIC" I disabled "ACPI APIC support" from bios and then linux boot without the warning. BUT. Windows crashes during boot if I keep ACPI APIC support disabled! My God... I don't know if that problem can be connected with too fast video playing. That is a possibility. Is this the M2N-MX motherboard, mentioned here ? http://silverlight.net/forums/t/76402.aspx In the BIOS, try under "Advanced" Plug And Play O/S [No] What that does, is causes the BIOS to assign IRQs (interrupt numbers) to the hardware, so that the OS doesn't attempt to figure it out. The BIOS is then responsible for setting up the hardware. The [No] value is what I use on all my computers. When you do that, then try ACPI APIC Support [enabled or disabled] With APIC disabled (so the system uses PIC instead), IRQs should go from 0..15 and there would be some sharing. With APIC enabled, IRQs might typically be seen to stretch from 0..23, with 16..23 being used for things like PCI or add-in hardware. I think Windows should be able to work, with both of those settings. I'm surprised Windows crashed. For ACPI (not the same as APIC) Support, my machines here typically use ACPI v2.0. None of my machines are modern enough to support v3.0. ACPI is for power management, amongst other things. It also defines a lot of tables of information, passed from the BIOS to the OS. If that still is not helping, I would check the BIOS revision, versus the BIOS offered for download and upgrade. I don't see anything in the BIOS release notes, to suggest they have fixed your problem. http://support.asus.com.tw/download/...s&model=m2n-mx The M2N-MX manual has several strange settings I've never seen before (Section 2.4.1 CPU Configuration). I don't think I can explain what they're for. One thing that is missing from the BIOS, is a selection of "MPS spec" with choices of 1.1 or 1.4. That used to exist on some older motherboards, typically boards with two CPU sockets. I would expect motherboards remove that setting now, and it is left at version 1.4. That could be part of the Linux complaint about "MP-BIOS". I'm not really sure. MPS 1.4 spec is described here. You'll notice the 8254 timer is mentioned in the document, but not described in detail. All it needs to do, is wire up its interrupt signal to the interrupt controller scheme. http://developer.intel.com/design/pe...s/24201606.pdf ******* It occurs to me, that with a single core processor, there is no need for interrupt steering to the cores. That is part of the structure used by APIC. There is an IOAPIC article here, and from that, a link to an Intel document with a picture. http://en.wikipedia.org/wiki/IOAPIC "82093AA I/O Advanced Programmable Interrupt Controller (IOAPIC)" http://download.intel.com/design/chi...s/29056601.pdf Page 4 of that PDF shows how interrupts are steered when APIC is enabled. In the example, there are two CPUs. "Local APIC" would be inside the Athlon64 X2 processor. The IOAPIC would likely be part of the chipset. In your case, with only one CPU core, there is less need for a local APIC. The IOAPIC should still be there in the chipset. It should still all be working. My purpose in providing that diagram, is to show what hardware (emulation) is used when you select APIC in the BIOS. This device is what is emulated in the hardware, when APIC is disabled. This is the PIC, the predecessor to APIC. When people build Southbridges, they would reference this document, to tell them how to build a PIC. So modern hardware seeks to emulate the behavior of Intel specified hardware from long ago. http://pdos.csail.mit.edu/6.828/2005...ware/8259A.pdf Paul |
#10
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AMD Athlon LE-1620 BUGGED??
I am Floppo.
Paul ha scritto: Is this the M2N-MX motherboard, mentioned here ? Yes. I am the author of that thread, Mario Rossi. Plug And Play O/S [No] The P'n'P o/s has always been on "No". If that still is not helping, I would check the BIOS revision, versus the BIOS offered for download and upgrade. I already installed the latest bios available from support.asus.com for my cpu and motherboard, "M2N-MX BIOS 1004" "2008/04/02 update", and I discovered it's the same version I always used till now, v02.58. |
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