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Old 02-13-04, 06:52 PM   #1
sourcexx
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Default kernerl 2.6.2 slow screen redraws

hi all,

i'm experiencing kinda slow screen redraws in X since switching to kernel 2.6x. Most noticeable when using some tranparent aterms. Not that damn slow but noticeable. I allready tried around with agp setting (using agpgart and also nvidia agp) - recompiled qt and kde as this is the desktop of my choise - also recompiled vanilla kernel with and without preemt. tried nvidia modules 4620patched and the latest 5bla release. only thing that speeds up the redraw's is switching down the colordepth but thats definetly not a thing i would like to do.

also got two different nvidia graphic adapters here .. both with the same problem .. currently running...

Model: GeForce FX 5200
IRQ: 5
Video BIOS: 04.34.20.27.00
Card Type: AGP

last but not least : i tried the nv module - but this one is pretty unuseable as it is top'ing like hell and making everything really choppy ..

my xf86config is attached...but i guess this is maybe a kernel related issue...

anyone with the same kind of problem?

rgds
marc'O
Attached Files
File Type: txt xf.txt (5.8 KB, 130 views)
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Old 02-13-04, 06:54 PM   #2
sourcexx
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... kernel config also attached ... it's an vanilla kernel only with some minor patches for dxr3 and lirc support ..
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File Type: txt kernelconfig.txt (49.2 KB, 118 views)
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Old 02-13-04, 07:19 PM   #3
sourcexx
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hups .. i have to correct one fact .. with enabled kernel agpgart and nv instead if nvidia display driver everything runs pretty fast ...

rgds
marc'O
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Old 02-15-04, 11:58 PM   #4
l33t0r
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I have this problem aswell. Very noticable if you switch between tabs in Firebird you can see the page being redrawn.

Using nv driver the page redraw is instant.

Running Debian Unstable packaged kernel 2.6.2-1-k7 and Tried 5336 driver and the 4496 same problem.


Any clues?
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Old 02-16-04, 02:56 AM   #5
sourcexx
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i'm still trying to fiddle out what's causing this, and good that you got the same problem ;-) - can you tell me what motherboard / chipset you got running there?

rgds
marc'O
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Old 02-16-04, 04:37 PM   #6
l33t0r
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a PCHIPS M848 board that's a SIS 848 (sis900 Network)
1 gig RAM
XP1900
Geforce3Ti200
Soundblaster Live 1024

I'm going to custom compile a new 2.6.2 kernel in a bit and see what difference that makes.

TBH, If I get it working great, but I may just swap back in my G450 DH and put the GF back in my windows box. It's no great loss as the only 3d thing i use is quake3.

I've tried all the NvAGP settings, and rendersupport is enabled, Funny thing is though when I had this running a couple of month ago (with a test 2.6 kernel) and the patched kernel/nvidia stuff from minion.de it was working sweet as a nut. (but i compiled the kernel myself)

Even my matrox millenium1 on my second head works faster than the nvidia driver.
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Old 02-16-04, 04:52 PM   #7
sourcexx
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i'm on a k7s5a with SiS 735 - so no real analogy - anyway ... i'm looking forward to ya sumup for the new compile try of the kernel - would be great if you can let me know the result ;-)

rgds
marc'O
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Old 02-17-04, 05:47 PM   #8
l33t0r
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I recompiled a lean kernel 2.6.2 using debian sources, and reinstalled modules 4496 and 5336 but still same problem no matter what other tweaks and things I did.

So I've relegated the card back to my win box and installed a G450 in here, and boy can I notice a difference! For a start it's nice and fast (compared to nvidia) but text is now so readable especially in xterms. (using 2x 21inch Sonys)

The GF card looked so fuzzy/blurry. My eyes are thanking me anyway.

Ewan.

Attached my kernel config if someone knows if something that should be set isn't.
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File Type: txt .config.txt (32.7 KB, 113 views)
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Old 02-19-04, 07:41 PM   #9
twinpower
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Default Arg indeed

Thank $deity that you guys are having this issue!
The screen redraw is *very* slow now that I've upgraded this PC here at work to an nvidia card. Moving between any window / browser tab etc. is almost unbearable.
(upgraded from an ancient 3dfx voodoo 3 3000, boy was that process fun!!)
24bit color is sweet, but slow refresh... can't stand it

Here are my specs :

Currently using the 4620 drivers; however I've tried *EVERY* driver out there from minion.de and nvidia.com for the 2.6 kernel (my own custom compile... no frame buffers, no AGPGART at all, all device drivers compiled into the kernel, not as modules) and they all exhibit this headache inducing behaviour.

Geforce 4 420mx (yoinked it out of a new Dell we got for an office admin here, like she'll ever need it)
glx loads, and I can run glxgears (downloading ut2003 right now to check out preformance)

[colexa@pc44 bin]$ uname -a
Linux pc44 2.6.1 #3 Thu Feb 19 17:46:42 CST 2004 i686 athlon i386 GNU/Linux

[colexa@pc44 bin]$ lspci
00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-751 [Irongate] System Controller (rev 23)
00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-751 [Irongate] AGP Bridge (rev 01)
00:04.0 SCSI storage controller: Adaptec AHA-2940U/UW/D / AIC-7881U
00:06.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30)
00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 14)
00:07.1 IDE interface: VIA Technologies, Inc. VT82C586/B/686A/B PIPC Bus Master IDE (rev 06)
00:07.2 USB Controller: VIA Technologies, Inc. USB (rev 06)
00:07.3 USB Controller: VIA Technologies, Inc. USB (rev 06)
00:07.4 SMBus: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 10)
01:05.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX 420] (rev a3)

[colexa@pc44 bin]$ cat /proc/driver/nvidia/agp/status
Status: Enabled
Driver: NVIDIA
AGP Rate: 1x
Fast Writes: Disabled
SBA: Disabled

(kernel AGPGART has not been compiled, as a module nor into the kernel)

XF86Config snippets : (I do not use XF86Config-4)
Section "Module"
Load "glx"
Load "dbe"
Load "extmod"
Load "fbdevhw"
Load "record"
Load "freetype"
Load "type1"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "Videocard vendor"
BoardName "Geforce 4 mx"
Option "NvAGP" "1"
Option "NoLogo" "true"
# Option "RenderAccel" "true"
Option "HWCursor" "true"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "KLEER K7 V1A"
DisplaySize 300 220
HorizSync 30.0 - 70.0
VertRefresh 50.0 - 120.0
Option "dpms"
EndSection

(yeah, I've never heard of a KLEER monitor either... we have them at work...)

All libs in /usr/lib/tls have been made to be symlinks to their corresponding /usr/lib counterparts...

I can't think of anything else right now that could be the cause of this issue... maybe I don't have an IRQ assigned to my geforce in the bios, but when I do this :

[root@pc44 lib]# cat /proc/driver/nvidia/cards/0
Model: GeForce4 MX 420
IRQ: 11
Video BIOS: 04.17.00.45.af
Card Type: AGP

I see IRQ 11... so I probably do have it set thusly.

Anyone find anything yet? This is totally irritating...
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Old 02-19-04, 08:12 PM   #10
sourcexx
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hi twinpower,

i'm totally stuck here with this problem - i tried a bunch of performance and pci / agp related kernel config parameters the last days but no success till yet .. just upgraded the kernel from 2.6.2 to 2.6.3 .. same issue there.

currently the whole thing is leading nowhere :-/

rgds
marc'O
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Old 02-20-04, 03:13 AM   #11
twinpower
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Default Maybe...

Have you tried enabling fast writes or sideband addressing?
My motherboard (AMD irongate) / geforce 4mx combo doesn't allow me to set either of these variables. (bleh!)

Add this next line below your nvidia alias line in /etc/modprobe.conf

options nvidia NVreg_EnableAGPSBA=1 NVreg_EnableAGPFW=1

Logout of X, and run the following commands as the root user:

modprobe -r nvidia
modprobe nvidia

Start X for the changes to take effect:

then
cat /proc/driver/nvidia/agp/status

To see if they are enabled...

Sorry if you already knew all of this..

On a side note... my UT2003 frame rates are quite nice considering the age of the hardware. UT2004 demo however, is pretty much unplayable (probably 10 - 20 fps, even after I overclocked the card with nvclock, I didn't actually check the fps though, too choptastic even at 640x480!)
Now for some tenebrae...
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Old 02-20-04, 12:44 PM   #12
sourcexx
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jeow allready got that in place but unable to get fast writes in place ....


Fast Writes: Disabled
SBA: Enabled

... but as this was also the same with kernel 2.4.x i don't think that is the problem.

rgds
marc'O
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