Hi, thanks for respond so quickly. In resume: The only thing give me an usable X environment is the following option:
Option "Accel" "off" This way I can work decently but not faster than with previous version (Debian 7) A detail that I forget to include is that I work with an external monitor controlled by xrandr. When I start the X window system (writting "startx") both screens are twins (it shows the same with the same resolution). The problem comes when I turn off LVDS and get the VGA maximum resolution: xrandr --output VGA-0 --auto --mode 1920x1080 NOTE: I insists that with the previous version of driver (Debian 7) I didn't have any problem, all works fine. All stop working with the upgrade. If you need additional information, please feel free to ask Thank you for you time. I respond on your message below... On 01/07/15, Michel Dänzer wrote: > On 01.07.2015 01:44, alfon wrote: > > > > Section "Extensions" > > Option "Composite" "Disable" > > EndSection > > Why are you disabling this? If the desktop environment (DE) you're using > (which is it?) supports compositing, that might alleviate the problem. I really don't know why I disabled this, I just was proving different options. I'm working with the OpenBox window manager. > > > > Section "ServerFlags" > > Option "AIGLX" "off" > > Option "DRI2" "off" > > EndSection > > Disabling AIGLX isn't a good idea either. I don't think Option "DRI2" > has any effect. > > > > Option "EXAVSync" "on" > [...] > > Option "ColorTiling" "off" > > Option "ColorTiling2D" "off" > > Option "EXAPixmaps" "on" > > Does commenting out these options help? > No, the only thing that help something is turned off accel: Option "Accel" "off" If I do that, I can get an usable X environment. Which it is paradoxical, because I'm working without graphic acceleration > > > Option "EnablePageFlip" "off" > > I recommend against disabling this. > > > > Virtual 2944 1080 > > This Virtual directive is unnecessary with KMS and causes the driver to > allocate at least twice as much VRAM as necessary for the front buffer. > Please try commenting it out. > I follow your recommendation, but with no perceptible effects > > > If I turn off hardware acceleration, the X environment is usable but still > > more slow than I used in UMS mode. In UMS mode (option radeon modeset=0) > > the Xorg window system directly crash > > The Xorg radeon driver doesn't support UMS anymore. > > > -- > Earthling Michel Dänzer | http://www.amd.com > Libre software enthusiast | Mesa and X developer ----- End forwarded message ----- -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150701163949.ga6...@gmail.com
