Public bug reported: Hi,
we've been running 18.04 (w/ Xubuntu) + 4.15.0-47 kernel for a while now (on Minix Z83-4 devices w/ Intel X5-Z8350 CPUs), which is working fine. After upgrading the kernel to a newer version (> 4.15.0-47), HDMI output is not available anymore, i915 reports an invalid EDID version via dmesg I dropped the full dmesg output on Pastebin: https://pastebin.com/jXTqAzkQ As a start I'm blaming the Linux kernel since booting 4.15.0-47 kernel works just fine. Known faulty kernel versions are: - 4.15.0-58-generic - 4.15.0-59-generic - 5.0.0-25-generic Not sure how to best collect logs and system information for you since I'm not used to debugging black screens. However, SSH access is possible. I am happy to provide more information, if needed. We can also install and test experimental kernel versions. Note: This happens then attached via a standard HDMI cable as well as with a HDMI-DVI cable on different monitor setups. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- 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/1840889 Title: Black Screen on 18.04 + Intel Graphics with Kernel > 4.15.0-47 Status in linux package in Ubuntu: New Bug description: Hi, we've been running 18.04 (w/ Xubuntu) + 4.15.0-47 kernel for a while now (on Minix Z83-4 devices w/ Intel X5-Z8350 CPUs), which is working fine. After upgrading the kernel to a newer version (> 4.15.0-47), HDMI output is not available anymore, i915 reports an invalid EDID version via dmesg I dropped the full dmesg output on Pastebin: https://pastebin.com/jXTqAzkQ As a start I'm blaming the Linux kernel since booting 4.15.0-47 kernel works just fine. Known faulty kernel versions are: - 4.15.0-58-generic - 4.15.0-59-generic - 5.0.0-25-generic Not sure how to best collect logs and system information for you since I'm not used to debugging black screens. However, SSH access is possible. I am happy to provide more information, if needed. We can also install and test experimental kernel versions. Note: This happens then attached via a standard HDMI cable as well as with a HDMI-DVI cable on different monitor setups. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1840889/+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
