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Old 01-22-08, 05:13 AM   #37
99vadim
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Default Re: GeForce Go 7900 GS black flash screen

Yes, I confirm - the fix works perfectly. My config: Fedora 8; AMD Turion 64X2; GeForce Go 7200. The flashes do not occur anymore, though my laptop gets slightly hotter nowadays. In Fedora 8 you just add the line
Code:
options nvidia NVreg_RegistryDwords="PerfLevelSrc=0x2222"
to /etc/modprobe.d/nvidia
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Old 01-22-08, 09:55 AM   #38
MrFuzzemz
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Default Re: GeForce Go 7900 GS black flash screen

From what I understand, this "fix" disables dynamic clocking thus increasing GPU temps and power consumption. It would be great if NVidia could do something to prevent this from happening in the first place so that we aren't wasting battery life trying to keep our systems from flashing and freezing.
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Old 02-01-08, 07:48 AM   #39
Nando777
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Default Re: GeForce Go 7900 GS black flash screen

I need your help:

I sent this problem to nvidia bug reports (after 2 years is about time it got fixed) and they are trying to replicate the problem. I can tell them to just use it for a while with Compiz activated and so on and it will happen but can anyone say EXACTLY what to do for it to occur?

For me it doesn't happen right away, in fact at first it doesn't do it, it starts happening after I use the computer for a little while, but If I try to force it to do it on cue I don't know how to. Sometimes the clock changes and it doesn't do it at beginning, others it does.

Please if you have any idea how to EXACTLY replicate this problem post it here or send it to

linux-bugs@nvidia.com

to Roland's attention.

Thank you very much
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Old 02-01-08, 07:51 AM   #40
Nando777
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Default Re: GeForce Go 7900 GS black flash screen

Oh and if you send it to their e-mail you may want to add a bug report as well. That would help.

Thank you!
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Old 02-01-08, 10:53 AM   #41
99vadim
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Default Re: GeForce Go 7900 GS black flash screen

Try scrolling some big web pages with lots of pictures in Firefox. I remember the black flash screen has always occured when I used to do that.
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Old 02-20-08, 08:13 AM   #42
Go7300
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Default Re: GeForce Go 7900 GS black flash screen

Quote:
Originally Posted by Nando777
Please if you have any idea how to EXACTLY replicate this problem post it here or send it to
No I cannot say what causes this. For me it seems to happen after I start using the computer in the morning after leaving it on overnight but inactive. Not at standby or anything. It wakes up from a blank screen ok. This morning I alt-tab to thunderbird and hilited a new email and when I hit the "return" to open the email, the freeze occurred. No messages in any log. It only lasted less than a minute. Then it started working again.

Before this morning, I haven't had this for quite some time, but I seem to remember it happens when trying to open email in thunderbird and in the morning.

On mine, F11 in firefox doesn't cause it.

I'm going to try adding this option and see if it's fixed.

Ubuntu 7.10 , 169.09 from nvidia site, GeForce Go 7300 256MB laptop

regards,
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Old 02-21-08, 06:43 AM   #43
Go7300
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Default Re: GeForce Go 7900 GS black flash screen

It's repeatable here. I left the laptop on overnight, compiz running, gkrellm, firefox, nvidia-settings, openoffice, konsole, speedcrunch, amarok and thunderbird. I left nvidia-settings showing the powermizer page and the focus was on thunderbird. In the morning, I jiggled the mouse to disable the screensaver, then used tab to move the cursor on thunderbird to the mail select panel, then used the down arrow to go to the last mail message, then hit return to open the message. This is where the freeze occurred. It lasted less than a minute. I could tell it was frozen also by watching gkrellm stop responding. Also, since nvidia-settings was opened to the powermizer, I could see that powermizer had never gone below 2.

I also had added this to /etc/modprobe.d/options before this freeze occurred:

options nvidia NVreg_Mobile=1 NVreg_RegistryDwords="PerfLevelSrc=0x2222"

But, it does not appear to have registered the PerfLevelSrc, as shown by:

~$ cat /proc/driver/nvidia/registry
EnableVia4x: 0
EnableALiAGP: 0
NvAGP: 3
ReqAGPRate: 15
EnableAGPSBA: 0
EnableAGPFW: 0
Mobile: 1
ResmanDebugLevel: 4294967295
RmLogonRC: 1
ModifyDeviceFiles: 1
DeviceFileUID: 0
DeviceFileGID: 0
DeviceFileMode: 438
RemapLimit: 0
UseCPA: 4294967295
UseVBios: 1
RMEdgeIntrCheck: 1

Notice that the Mobile: 1 setting made it in. I'm using 169.09 .. maybe the PerfLevelSrc=0x2222 means nothing anymore. Anyway, it did not stop the freeze anyway.

Also, since my powermizer never showed less than 2, perhaps it has nothing to do with switching powermizer levels anyway.

Any ideas?

GeForce Go 7300, Ubuntu 7.10, dell e1505 laptop
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Old 02-23-08, 08:31 AM   #44
PhillyFloyd
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Default Re: GeForce Go 7900 GS black flash screen

Hey guys and gals

Let me start by saying I am sort of comforted in knowing I am not alone on this one -- I tried bringing it up many times on the FedoraForums pages and LQ.org but no one really wanted to delve into so I had been doing it on my own, glad that I stumbled here finally..

anyway, my specs:
Code:
[root@xps-m1710 nvidia]# cat registry 
EnableVia4x: 0
EnableALiAGP: 0
NvAGP: 3
ReqAGPRate: 15
EnableAGPSBA: 0
EnableAGPFW: 0
Mobile: 4294967295
ResmanDebugLevel: 4294967295
RmLogonRC: 1
ModifyDeviceFiles: 1
DeviceFileUID: 0
DeviceFileGID: 0
DeviceFileMode: 438
RemapLimit: 0
UseCPA: 4294967295
UseVBios: 1
RMEdgeIntrCheck: 1

[root@xps-m1710 nvidia]# lsmod | grep nvidia
nvidia               8849732  37 
i2c_core               28865  3 v4l2_common,nvidia,i2c_i801

[root@xps-m1710 nvidia]# lspci | grep -i nvid
01:00.0 VGA compatible controller: nVidia Corporation GeForce Go 7950 GTX (rev a1)
You can see below, using the 169.09 driver, and I do get the dead Xid issues w/compiz etc ... narrowed it down as did someone on here to the clocking with 3D gphx but that just meant I either disabled compiz or booted with maxcpus=1 at times when I needed stability --- anyway long story short, those options don't register with the proc driver registry for nvidia on my system ... I tried both an options and a nvidia file with the options in them -- is there a way to verify the acceptance of the flags on the module?

Code:
[root@xps-m1710 nvidia]# grep NVRM /var/log/messages
Feb 18 10:21:42 xps-m1710 kernel: NVRM: loading NVIDIA UNIX x86_64 Kernel Module  169.09  Fri Jan 11 14:04:37 PST 2008
Feb 18 20:07:40 xps-m1710 kernel: NVRM: Xid (0001:00): 6, PE0000 0da8 ffefefe7 00005718 00000000 00ebe6df
Feb 18 20:07:40 xps-m1710 kernel: NVRM: Xid (0001:00): 36,  L1 -> L0
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Old 02-24-08, 07:28 PM   #45
PhillyFloyd
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Default Re: GeForce Go 7900 GS black flash screen

Afraid to post an jinx myself but two days now and no flickers using the above posted module options ... system isn't running any hotter than normal either
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Old 02-25-08, 09:12 AM   #46
Go7300
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Default Re: GeForce Go 7900 GS black flash screen

I'm getting different performance now that I unplugged my external monitor and am using the internal laptop LVDS. Now, the powermizer is falling to zero most all the time. It stayed at 2 when I was using the external LCD. Maybe it only works on internal???

I notice flashes across the screen frequently and occasional brief freezes.

I'm using 169.09 on a Quadro NVS 100M (aka Go 7300).

I tried running coolbits to see if I could configure the clock to stay at the highest level. I enabled it, selected 2D Clock Frequencies, the default levels were 100 Mhz GPU and 400 MHz Memory, and the slider on GPU only goes to 200 (chipset is 350) which would be level 2 on powermizer. I tried manually entering 350 in the box to the left of the slider as well as 600 under Memory and hit apply. It seemed to accept it because the boxes went grey with those levels. But, the powermizer still changed back to 0 and lowered the GPU / Memory, even on 2D.

Next, I tried the PerfLevelSrc option and now the powermizer seems to be staying at 2. That seems to be what's needed to eliminate the flashes and mini freezes. (I had previously reported that this didn't work for me when I was using my external LCD .. not because the powermizer was dropping to 0 but because it was never changing below 2 .. with or without PerfLevelSrc).

The only negative is the laptop is running about 10 C warmer on powermizer 2 versus powermizer 0. Seems like Nvidia needs to do some work on the the responsiveness of powermizer to demand. Hopefully it will improve in the future.

Go7300
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Old 02-26-08, 06:34 PM   #47
PhillyFloyd
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Default Re: GeForce Go 7900 GS black flash screen

Thanks to everyone on this thread who spent the past 4 months trying to resolve this problem ... it's been with my laptop since October and I spent many hours trying many things which never successfully tested for more than 24 hours.

Again many thanks --- at this point a work-around is just as good as a fix to me
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Old 03-05-08, 11:01 AM   #48
tsmr
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Default Re: GeForce Go 7900 GS black flash screen

Hi.
I am running debian sid (2.6.23 vanilla) with an old AGP fx5200 128mb and I never had any kind of problems with my nvidia card until a few days ago.
Now I am experiencing frequent full-system freezes and there seems to be now way of fixing it.
My syslog reflects the usual Xid errors:

Quote:
Mar 5 14:41:05 osmosis kernel: NVRM: Xid (0001:00): 6, PE0000 1ffc ffffffff 0000ef18 ffffffff ffffffff
Mar 5 14:41:37 osmosis kernel: NVRM: Xid (0001:00): 6, PE0000 0444 00010001 00005504 00000000 00010001
Mar 5 14:42:40 osmosis kernel: NVRM: Xid (0001:00): 6, PE0000 1ffc 87ffffff 0000ef18 ffffffff ffffffff
I tried to implement the NVreg_RegistryDwords="PerfLevelSrc=0x2222" fix but it didn't work.
The freezes can be reproduced with the F11 firefox trick.
The driver's version is 169.12 but the same thing happens with 100.14.19.
Is there anything more I can do?
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