This may be something you already tried, but a friend of mine had this issue so I am suggesting it anyway.
Are you sure you need the 304.x version of the drivers? If you have a newer graphics card, then using this older driver may cause problems. You can check this by running nvidia-debugdump --list to see your device name and then searching for it in this list <http://www.nvidia.com/object/IO_32667.html>, or, probably easier, selecting it on this page <http://www.nvidia.com/Download/index.aspx?lang=en-us>. You can then search for the Debian package matching the suggested version. Good luck, video drivers tend to be finicky... Thom 2016-10-20 8:33 GMT+02:00 Jimmy Johnson <field.engin...@gmail.com>: > On 10/12/2016 12:10 PM, David Baron wrote: > >> Running must recent kwin, etc., with Sid nvidia-legacy-304xx driver. >> >> Window decorations slow or do not show on non-KDE windows. If they do not >> show, one can pretend they are there and do everything. >> >> Effects all compositing options. >> >> Where to file bug? >> Quick fix? >> > > Quick fix, force install all your 'nvidia' and 'glx' installed packages > back to 'Jessie-backports' and then 'lock-them' works, maybe 20-24 packages > that you will be locking, varies a little with my installs, some I had not > upgraded and I only had to lock the packages. I used synaptic while in > xfce4 and all your kde apps work from xfce4 too as a side note. Note no > problem with upgrades and those files being locked, at this time anyways. > hehe > > There's a lot noise out there about fix's, I found nothing works for me. > I came up with this fix and it works. While gtk works with the upgrade, > plasma don't, it's a problem with plasma, you can't blame nvidia and say > they are not doing their part, this is a problem debian plasma, I'm sure > they are working on it. Seems to affect only 'legacy-304' and could be a > simple code error. > > With the Debian-nvidia driver: Plasma is unable to start as it could not > correctly use OpenGL2. Note dialog is working, sound is working, no plasma. > > With the Debian-free driver, computer freeze with colorful squiggly lines > and I have to push the power button and repair the file system. > > David, do you have a better fix than down-grading the packages? And I may > not need to down grade as many packages as I do, but it works. > -- > Jimmy Johnson > > Debian Sid/Testing - KDE Plasma Version 5.8.2 - EXT4 at sda15 > Registered Linux User #380263 > >
