Not sure, if this is relevant here. I had a long time ago similar trouble with this monitor Samsung Syncmaster 226bw when using nv driver with debian lenny. Seems the monitor had problems with its edid.
At the time when the following patch became applied, my problems dissapeared: http://archive.netbsd.se/?ml=xorg-commit&a=2007-04&m=3595489 http://www.opensource.apple.com/source/X11server/X11server-48.4/Xquartz /xorg-server-1.3.0-apple22/hw/xfree86/modes/xf86EdidModes.c I wonder if nouveau driver also includes above patch. Here the output of get-edid | parse-edid (installed with package "read- edid"), while running this PC again with nv-driver: ---------------------------------------------- sudo get-edid | parse-edid parse-edid: parse-edid version 2.0.0 get-edid: get-edid version 2.0.0 Performing real mode VBE call Interrupt 0x10 ax=0x4f00 bx=0x0 cx=0x0 Function supported Call successful VBE version 300 VBE string at 0x11100 "NVIDIA" VBE/DDC service about to be called Report DDC capabilities Performing real mode VBE call Interrupt 0x10 ax=0x4f15 bx=0x0 cx=0x0 Function supported Call successful Monitor and video card combination does not support DDC1 transfers Monitor and video card combination does not support DDC2 transfers 0 seconds per 128 byte EDID block transfer Screen is not blanked during DDC transfer Reading next EDID block VBE/DDC service about to be called Read EDID Performing real mode VBE call Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0 Function supported Call failed The EDID data should not be trusted as the VBE call failed Error: output block unchanged parse-edid: IO error reading EDID mich...@michael-desktop:~$ get-edid | parse-edid parse-edid: parse-edid version 2.0.0 get-edid: get-edid version 2.0.0 mmap /dev/zero: Permission denied get-edid: error initialising realmode interface get-edid: do you have full superuser (root) permissions? parse-edid: IO error reading EDID ---------------------------------------------- -- X.Org X server --Nvidia (Nouveau) display driver does not recognize screen resolution https://bugs.launchpad.net/bugs/460510 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
