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Please execute the following command only once, as it will automatically gather debugging information, in a terminal: apport-collect 1958089 When reporting bugs in the future please use apport by using 'ubuntu- bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs. Please note: `ubuntu-bug`, `apport` & bug reporting tools are provided with Ubuntu by default, many require manual addition for some releases of downstream OSes based on Ubuntu (eg. Linux Mint). You should check with your distribution first. (If your system contains 3rd party packages (eg. Linux Mint), this will likely need to be confirmed by a pure Ubuntu system before it's worked on. Linux Mint use runtime adjustments, plus 3rd party packages which make it a different system. Have you filed a bug with Linux Mint?) ** Package changed: ubuntu => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1958089 Title: Acer laptop screen goes black after a few hours of work Status in linux package in Ubuntu: Incomplete Bug description: I recently switched from LM Cinnamon build to LM MATE build. Everything went fine at first, but now I experience issues where my screen goes black showing only the underscore flashing. Results: ubuntu-bug linux results: *** Collecting problem information The collected information can be sent to the developers to improve the application. This might take a few minutes. ................... *** Problem in linux-image-5.4.0-94-generic The problem cannot be reported: This is not an official Linux package. Please remove any third party package and try again. cat /proc/version_signature > version.log results: Ubuntu 5.4.0-94.106-generic 5.4.157 sudo lspci -vnvn > lspci-vnvn.log results: pcilib: sysfs_read_vpd: read failed: Input/output error pcilib: sysfs_read_vpd: read failed: Input/output error lsb_release -rd results: Description: Linux Mint 20.2 Release: 20.2 While browsing through 'System Log Viewer' tool on the system, I noticed a few lines saying things like 'kernel bug' or 'firmware bug'. After no luck on the forums, I was told that I should put this up here. Inxi -Fzn result: https://pastebin.com/raw/W3DUxUzu Xorg log (from System Log Viewer): https://pastebin.com/raw/ePCk2DaL kern.log (from System Log Viewer): https://pastebin.com/raw/ju233mxe syslog from System Log Viewer tool will be attached. I hope that any of this will be enough to identify the issue. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958089/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp