Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.17 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.17-rc4 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Bionic) Status: New => Incomplete ** Changed in: linux (Ubuntu Bionic) Importance: Undecided => High ** Tags added: bionic kernel-da-key -- 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/1770509 Title: gui crashes on login Status in linux package in Ubuntu: Incomplete Status in linux source package in Bionic: Incomplete Bug description: I have installed Ubuntu 18.04 LTS on my laptop which is a Lenovo Ideapad 300 with 8GB of RAM, an Intel® Core™ i7-6500U CPU @ 2.50GHz × 4 processor and Intel® HD Graphics 520 (Skylake GT2). I have GNOME 3.28.1 which logically is latest version of GNOME coming with Ubuntu 18.04 LTS. Everything works perfectly but I found a bug which happens when logging in. When I boot my laptop (which is not dual boot, it only has Ubuntu 18.04 LTS installed), I press Enter to select the only available user (my user) and then I am prompted to enter my password. If I type my password wrong by a character more (I haven't tried a smaller or a bigger length) and then give the right password the GUI crashes. What I mean by crashing is that I get a static purple screen where I can only move my mouse pointer and nothing else. I get no desktop, no icons, no nothing. I don't know if it is a hardware incompatibility or a bug but it happens every time I follow the steps I mentioned above and then I have to hard shutdown the laptop. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1770509/+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