On Thu, Apr 06, 2017 at 12:44:32AM +0100, Luca Boccassi wrote: > ... > The problem is that your dpkg alternative is set to use mesa rather > than nvidia to provide glx. That's why the symlink was missing. > > You can fix this manually by running: > > sudo update-glx --config glx
Mmm... Running this returns: There is only one alternative in link group glx (providing /usr/lib/glx): /usr/lib/mesa-diverted Nothing to configure. Processing triggers for glx-alternative-mesa (0.7.4) ... Processing triggers for libc-bin (2.24-9) ... I wonder what else I need. Libg11-nvidia-legacy-304xx-glx is installed (version 304.135) > And by choosing /usr/lib/nvidia at the selection menu. > > I see you mention you had to fix things up "manually" when moving from > nouveau to nvidia. I assume that's where things went wrong, as this is > normally done automatically when installing through the nvidia-driver > package. > > Do you have a log with the exact steps you've taken after the upgrade? >From my notes at the time: In Jessie I was using the nvidia driver 304.131. After the upgrade to stretch was done, the nvidia driver 304.135 was installed and the X server didn't start. Not knowing what had happened, I started looking around and noticed that there was "libnvidia-legacy-304xx-compiler" which was not installed, so installed it. It made no difference. Then did: dpkg-reconfigure nvidia-legacy-304xx-kernel-dkms which unloaded the current driver, recompiled and re-installed it again. but it made no difference. Up to this point, /etc/X11/xorg.conf had a line to use the "nvidia" driver. Thinking that the 304 driver was not the right one, I uninstalled it (via aptitude) and tried to use the nouveau driver (set xorg.conf to use "nouveau" instead of "nvidia") that I hoped had been fixed enough to work (it didn't before even in Jessie). I had a good screen until it went blank because of the screen saver and then it never reappeared. I did realize I didn't have kde installed so instlled kde-full (via aptitude) as that was what was installed in Jessie - not sure why the upgrade to Stretch got rid of kde. After I switched to "nouveau" in /etc/X11/xorg.conf I got a screen that worked but the new kde didn't recognize any of the settings I had under Jessie, so I had to manually re-configure just about everything to get it to look like it did before, and I'm still not done. It seems almost impossible to get the same look. Many of the panel apps I had don't seem to be available any more. Furthermore, the nouveau driver had almost constant video artifacts, like big triangles with apex at the top left corner that covered almost the whole screen until I gave focus to different konsole windows and then they went on top; and lock-ups which would require a reboot after getting in via ssh. When I realized that the 304xx driver was the correct one and noticed that after the upgrade some packages for 340xx were installed, I removed all the 340xx packages. Then did: dpkg-reconfigure nvidia-legacy-304xx-kernel-dkms and it failed because the kernel headers were not installed (for kernel 4.9.0-2-686-pae), Had to install linux-headers-686-pae. This probably happened because the kernel was upgraded at some point and the headers were not. After running the dpkg-reconfigure above, nouveau was still being loaded. The file /etc/nvidia/nvidia-blacklists-nouveau.conf contains "blacklist nouveau" but it says in the comment I need to run update-intiramfs -u, so I did. No difference, the nouveau driver is still being loaded. This is probably a real bug; maybe the nvidia-blacklists-nouveau.conf file is not referred to by the package that needs to know about it? Created /etc/modprobe.d/blaclist.conf and put in it: blacklist nouveau and that did it, now the nvidia driver was loaded per lsmod but the X server still didn't see it. It was then that I figured out I needed the symlink: ln -s /usr/lib/nvidia/legacy-304xx/nvidia_drv.so /usr/lib/xorg/modules/drivers/nvidia_drv.so which was what made it work. I have noticed other issues, like selecting the "tiny" border for windows doesn't give borders any smaller than the normal ones. Also some fonts are extremely small and can't be changed. I wonder if these issues are related. > Kind regards, > Luca Boccassi Thank you for replying. If there are other things I should try please let me know. Augustine