On Fri, 19 Jun 2015 16:23:03 +0800 Bret Busby <bret.busby@gmail.com> wrote: > On 19/06/2015, Petter Adsen <petter@synth.no> wrote: > > How do you determine that it doesn't detect the monitor? You can > > read through /var/log/Xorg.0.log, but it's easier to just run > > "xrandr" (when both screens are connected) and see what it detects. > > If "xrandr" is able to detect both outputs it should just be a > > matter of configuration, if not then that would suggest a problem > > with the driver. > > > > At least Wheezy is a lot more up to date than Squeeze, with newer > > kernel and X. I'd say your odds of getting the second screen going > > there would be a lot better than with Squeeze. > > > > Since it's working on your Ubuntu installation, can you determine > > which version of the driver that has installed? The packages are > > usually called "nvidia-xxx", then do "apt-cache policy nvidia-xxx" > > on the one that is installed to see the exact version. Do the same > > for Wheezy. > > > > " > -Ubuntu-12-04LTS:~$ apt-cache policy nvidia-xxx > N: Unable to locate package nvidia-xxx > " The "xxx" should be replaced by the major version number you are using. Try "dpkg -l | grep nvidia" to see what packages are installed, then use "apt-cache policy" to determine the full version of the one that is installed. > >From Ubuntu 12.04, as I previously mentioned having thusly added the > nvidia 331 drivers (Ubuntu 12.04 successfully detected and provided > use of the external monitor, both before and after the installation of > the nvidia drivers) So you could use the external screen with the nouveau driver? Have you tried that with Wheezy? I don't have the time to go through this entire thread again, I was simply under the impression that Ubuntu 12.04 with the proprietary driver was the only combination that would see the external screen. If that isn't the case, then we have more to work with. > >From System Settings -> Additional Drivers; > > " > Proprietary drivers are being used... > NVIDIA accelerated graphics driver (version 331) > NVIDIA accelerated graphics driver (post-release updates) (version > 331-updates) " OK, major version 331. > > Copies of Xorg.0.log (on both Wheezy and Ubuntu) would also be > > helpful, just to see what your system detects, and how they differ. > > > > " > -Ubuntu-12-04LTS:~$ cat Xorg.0.log > cat: Xorg.0.log: No such file or directory > " If you read the top of my previous post you would have seen the full path to that file. Petter -- "I'm ionized" "Are you sure?" "I'm positive."
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