[nvidia-glx] GF4 TI-4200 Go screen remains black without "UseDisplayDevice" "DFP"

Thank you for your bug report.

OliverMay:
Please can you upload the following files from a run where it fails:
/etc/X11/xorg.conf
/var/log/Xorg.0.log
Could you also upload the output of:
dpkg -l nvidia-\* | grep ii
?

Settings to needsinfo pending reply from Oliver.

Thanks for the quick reply,

I tried some more and found out that using the nvidia-glx-legacy driver (7184), x starts, altough without glx support (glxgears segfaults). I still have the same problems (black screen after x start) with the nvidia-glx driver (9631).

The dpkg command you requested for both the 9631 and 9755 driver:

oliver@levvietop:/root/XLogs$ cat dpkg.log-9631
ii nvidia-glx 1.0.9631+2.6.20.5-15.20 NVIDIA binary XFree86 4.x/X.Org driver
ii nvidia-kernel-common 20051028+1ubuntu7 NVIDIA binary kernel module common files
oliver@levvietop:/root/XLogs$ cat dpkg.log-9755
ii nvidia-glx-legacy 1.0.7184+2.6.20.5-15.20 NVIDIA binary XFree86 4.x/X.Org 'legacy' dri
ii nvidia-kernel-common 20051028+1ubuntu7 NVIDIA binary kernel module common files

I used the same Xorg.conf for both configurations, it is attached to this comment.

On a side notice, switching between nvidia-glx and nvidia-glx-legacy using apt didn't "just work". I had to rmmod nvidia; insmod /lib/modules/2.6.20-15-generic/volatile/nvidia[_legacy].ko because otherwise the x server gave incompatible driver errors or just told me it couldn't install the nvidia driver.

Oliver:
Hmm this bug starting to become unfocused. Generally speaking you need to reboot or manually unload the nvidia modules if you are trying to switch between versions - that's just the nature of the drivers (it is unwise to be switching kernel modules like that on the fly anyway - you never know what the state the hardware will be left in). The nvidia-glx-legacy drivers aren't the best fit for your card (but the issue you were seeing with them was Bug #63461 ) .

Finally, the nvidia-glx-legacy drivers are 71xx and the "regular" nvidia-glx drivers are 96xx. The 97xx drivers are nvidia-glx-new and aren't compatible with Geforce 4s.

Does adding
Option "UseDisplayDevice" "DFP"
to the Screen section of /etc/X11/xorg.conf make any difference when you are using nvidia-glx?

Ok, that (Option "UseDisplayDevice" "DSP") fixed it right away, thanks a lot!

I seem to have mistyped the driver version in my last post, I never tried the new (9755) driver because it is not compatible with my hardware as you also noticed. I meant the legacy driver (7184) where i typed 9755. I guess the 7 confused me :)
About the module loading, just to inform you as i guess it has noting to do with this 'bug', it didn't work either when I rebooted, when x started it gave me a driver mismatch error. (Kernel: 7184, xorg module: 9631). After manually reloading the nvidia modules it worked.

Anyway, thanks for the information!

Setting back to unconfirmed.

Looks similar to Bug #82312 ...