[Bug 1492778] Re: kde crashes when turning powering on display port monitor
It affects me too with Intel NUC 5i5RYH.I have a WORKAROUND (read till the end of this post). I have it plugged to a TV by HDMI. Everytime the TV is switched off, X crashes with libqxcb.so errors in syslog, though the problem is not in libqxcb.so. The problem is that xrandr looses all screen displays!! Nasty stuff. I found out about that by compiling a custom libqxcb and writing log messages to a file. This did not happen in 14.04. Of course it won't affect laptops because they have always at least one display connected. It also doesn't affect most desktop monitors, because when they are in standby, they don't signal that they are off in the HDMI cable signals. (pin 19). It only affects computers on which all of their monitors or TVs get turned off without turning the computer off, and those monitors or TVs assert HDMI pin 19. My TV isn't even off, it is in standby and it asserts pin 19, which crashes linux. Please look for HDMI PIN 19 (Hot plug detect) in the web for more information. It has caused problems in windows too in the past. I have a nasty quick and dirty WORKAROUND: Every time I reboot it or switch it on, I wait for X to start on the TV I have to: 1) Wait for the UI to start. Login. 2) In a console in the UI (such as konsole, yakuake, etc.), run this: xrandr --output VIRTUAL1 --mode 1920x1080 --same-as HDMI1 xrandr --addmode VIRTUAL1 1920x1080 xrandr --output HDMI1 --primary 3) Now, if you run: xrandr you'll see that there is an additional display called VIRTUAL1 I tried and failed to make this sequence of commands automatic upon login in. Something about the timing about which they have to be run, when the full desktop has already been loaded I guess. Please someone let me know if these xrandr commands can be made automatic. I'm getting "cranky" about having to run them every time the HTPC has to reboot or looses power and switch it on again. Cheers!! --Juan Manuel Cabo -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when turning powering on display port monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
[Bug 1492778] Re: kde crashes when turning powering on display port monitor
I mean, It is mind boggling because the main reason I got an Intel NUC was to pair it with a TV.. but it turns out that linux crashes when the TV goes to standby or OFF mode. OR HDMI gets unplugged. I think the nvidia driver always makes sure that there is always at least one virtual or mock screen so that libraries don't crash. I think. Cheers! --Juan Manuel Cabo -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-meta in Ubuntu. https://bugs.launchpad.net/bugs/1492778 Title: kde crashes when turning powering on display port monitor To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1492778/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
[Bug 1351699] Re: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331.
** Attachment added: Output of lspci -v -nn https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331-updates/+bug/1351699/+attachment/4168339/+files/lspci_v_nn.txt -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-driver-manager in Ubuntu. https://bugs.launchpad.net/bugs/1351699 Title: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-driver-manager/+bug/1351699/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
[Bug 1351699] Re: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331.
Output of lspci -v -nn and a screenshot has been attached. -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-driver-manager in Ubuntu. https://bugs.launchpad.net/bugs/1351699 Title: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-driver-manager/+bug/1351699/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
[Bug 1351699] Re: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331.
** Tags removed: utopy ** Tags added: utopic -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-driver-manager in Ubuntu. https://bugs.launchpad.net/bugs/1351699 Title: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-driver-manager/+bug/1351699/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
[Bug 1351699] Re: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331.
Navigating nvidia's website, I found that the 750ti was officially suported starting from the linux driver version 334.21: 334.21 March 3, 2014 Linux x64 (AMD64/EM64T) Display Driver-Release Highlights http://www.nvidia.com/download/driverResults.aspx/73666/en-us Now, the newest driver package available for Trusty is: 331.38, and the newest nvidia package available for Utopy is: 331.89. They both work with my Geforce GTX 750ti card, though they are older than the first one to mention support for the 750ti (version 331.89 vs 334.21), and don't contain the matching modalias, so no driver is listed. I understand if us users cannot be recommended to run the available drivers for ubuntu, but I still think it is a bug to show an empty driver selection list in Additional Drivers, with no message to correctly reflect what is happening, or no possibility to select a 3D enabled driver by GUI, even if not the recommended one. In summary: My 750ti works perfectly with 331.38, and I think it is a bug not to show any drivers for selection even if not recommended, and not to give a proper message to us user. Instead we get just a blank list. Best wishes, Juan Manuel Cabo -- You received this bug notification because you are a member of Kubuntu Bugs, which is subscribed to kubuntu-driver-manager in Ubuntu. https://bugs.launchpad.net/bugs/1351699 Title: Additional Drivers / Driver Manager shows no drivers for NVidia GTX 750ti - Missing modalias in nvidia-331. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kubuntu-driver-manager/+bug/1351699/+subscriptions -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
