I have recently bought a new notebook, an ASUS K501UX, and I have encountered some problems installing Debian 8.3 on it.
In fact, already during the installation process it looks like there are some problems with the video card (NVIDIA GeForce GTX 950M), since the lower part of the screen is just black (even if it still "exists", that is the mouse can go "behind" it and click the "next" or "cancel" buttons which are "covered" by the black stripe):
This problem persists also after the installation. Furthermore, since the screen has a 4k resolution (3640x2160) all icons, windows and texts are painfully small:
As you can see, however, if I take a screenshot all the desktop is visualized. This is what the screen actually looks like in the lower part:
I tried changing the resolution from the Settings, but apart from 3640x2160 no other options are available. Furthermore, the display is labelled as "Unknown display":
I then tried to change it with xrandr, but the output of xrandr command is the following:
- Code: Select all
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 3840 x 2160, current 3840 x 2160, maximum 3840 x 2160
default connected primary 3840x2160+0+0 0mm x 0mm
I then looked around the web, and found that this is a problem related to the video card driver. So, I followed the DebianWiki on the subject to install the driver, namely I installed the nvidia-driver package and then configured xorg with nvidia-xconfig. However, rebooting Debian, all I got is a blank screen with a flashing pointer, and xserver not working at all (if I press Alt+F3 and login and then try startx I get a long list of deadly-sounding errors like "screen not found").
What should I do? Should I try installing the drivers from the NVIDIA website? I've read (also in the DebianWiki) that this can cause problems to the system.
Or is it really a driver problem? Why doesn't it detect the screen?
Thank you very much for any kind of help!