I have an Intel 945GM and am using dual screens in extended mode. I'm experiencing the screen flicker as well. I've tracked down the issue to a problem with Xorg. For some reason, it does DDC detection every time a new application is open (so every time a new app connects to the X server).The following lines are printed in the /var/log/Xorg.0.log EVERY TIME an application is launched:
[EMAIL PROTECTED]:~$ tail /var/log/Xorg.0.log -n 30 (II) intel(0): EDID vendor "SEC", prod id 17495 (II) intel(0): Printing DDC gathered Modelines: (II) intel(0): Modeline "1440x900"x0.0 95.44 1440 1504 1536 1744 900 903 906 912 -hsync -vsync (54.7 kHz) (II) intel(0): EDID vendor "SEC", prod id 17495 (II) intel(0): EDID vendor "SAM", prod id 549 (II) intel(0): EDID vendor "SEC", prod id 17495 (II) intel(0): Printing DDC gathered Modelines: (II) intel(0): Modeline "1440x900"x0.0 95.44 1440 1504 1536 1744 900 903 906 912 -hsync -vsync (54.7 kHz) (II) intel(0): EDID vendor "SEC", prod id 17495 (II) intel(0): EDID vendor "SAM", prod id 549 (II) intel(0): EDID vendor "SEC", prod id 17495 (II) intel(0): Printing DDC gathered Modelines: (II) intel(0): Modeline "1440x900"x0.0 95.44 1440 1504 1536 1744 900 903 906 912 -hsync -vsync (54.7 kHz) This is clearly what is causing the screen flicker. We need to file a bug upstream against Xorg. Maybe one has been filed already. Anyone aware of this? This bug should probably be moved to a more generic xorg package since it's not specific to nv. Maybe xserver-xorg-core ? In the meantime, I've attached my /var/log/Xorg.0.log Could others attach it as well to see if it is indeed the same issue? Thank you! ** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/16475429/Xorg.0.log -- Screen flickers when loading applications https://bugs.launchpad.net/bugs/245383 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
