Version: unspecified (using KDE 4.6.3) OS: Linux If I enable my external monitor in systemsettings both monitors, i.e. the notebook's and the external one become black. I can see the mouse pointer but no graphics. If I issue a ALT+F2 and execute kwin --replace the new settings are shown correctly, i.e. the external monitor shows the desktop. .xsession-errors shows: X Error: BadWindow (invalid Window parameter) 3 Major opcode: 20 (X_GetProperty) Resource id: 0x4804581 X Error: BadMatch (invalid parameter attributes) 8 Extension: 150 (RANDR) Minor opcode: 7 (RRSetScreenSize) Resource id: 0xc0 kwin(1979): glCheckFramebufferStatus failed: "GL_NO_ERROR" OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) 965GM x86/MMX/SSE2 OpenGL version string: 1.4 (2.1 Mesa 7.10.2) Driver: Intel GPU class: i965 OpenGL version: 1.4 Mesa version: 7.10.2 X server version: 1.9.3 Linux kernel version: 2.6.39 Direct rendering: no Requires strict binding: yes GLSL shaders: no Texture NPOT support: limited link XMLID_34_ hasn't been detected! link XMLID_34_ hasn't been detected! link XMLID_36_ hasn't been detected! kwin(2863): glCheckFramebufferStatus failed: "GL_NO_ERROR" link XMLID_34_ hasn't been detected! link XMLID_34_ hasn't been detected! link XMLID_36_ hasn't been detected! Reproducible: Didn't try
To reproduce, activate an external monitor. This puts the "do you want to keep those settings" dialogue on the external monitor, which IMHO opinion is a bug. Do not do anything and wait until it times out. The screens will then try to revert to some setting and become black. Now you have to issue kwin --replace to fix the issue.
is this still an issue with a later version of KDE SC (e.g. 4.9)? The handling of changing screens inside KWin got changed.
ping?
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!