<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - [GM965/GL960] blank screen after switching between VGA1 and LVDS1" href="https://bugs.freedesktop.org/show_bug.cgi?id=49688#c39">Comment # 39</a> on <a class="bz_bug_link bz_status_REOPENED " title="REOPENED --- - [GM965/GL960] blank screen after switching between VGA1 and LVDS1" href="https://bugs.freedesktop.org/show_bug.cgi?id=49688">bug 49688</a> from <a class="email" href="mailto:manikulin@gmail.com" title="max <manikulin@gmail.com>"> max</a> <pre>3.8.0-994-generic #201302150406 SMP Fri Feb 15 09:16:52 UTC 2013 i686 i686 i686 GNU/Linux commit 2f5d6b55e082078d554f96f699243f65af719e68 <a href="http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2013-02-15-raring/">http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/2013-02-15-raring/</a> X session launched with startx /usr/bin/xterm Switching to external display always results in dark screen, however the monitor is not in power saving regime. intel_reg_dumper before and after [Ctrl+Alt+F1] [Alt+F7] (dark screen vs. correct image with the xterm window) PFIT_PGM_RATIOS: 0x08000800 PORT_HOTPLUG_EN: 0x00000220 PORT_HOTPLUG_STAT: 0x00000300 - DSPACNTR: 0x58000400 (disabled, pipe A) + DSPACNTR: 0x58000000 (disabled, pipe A) DSPASTRIDE: 0x00001400 (5120 bytes) DSPAPOS: 0x00000000 (0, 0) DSPASIZE: 0x00000000 (1, 1) DSPABASE: 0x00000000 - DSPASURF: 0x00428000 + DSPASURF: 0x00040000 DSPATILEOFF: 0x00000000 PIPEACONF: 0x00000000 (disabled, inactive, progressive) PIPEASRC: 0x04ff031f (1280, 800) Switching to LVDS1 sometimes works correctly. Sorry, by I do not see any progress, probably some regress.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>