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Created attachment 1219707 [details] dmesg output Description of problem: When I boot this laptop in UEFI mode, as soon as KMS activates, the screen immediately turns black and the laptop hangs. From testing I've done it does not appear to be a backlight issue as booting never seems to continue. With Fedora 25 beta I've been using the live image written to a USB stick. Linux netbook 4.8.0-0.rc7.git0.1.fc25.x86_64 #1 SMP Mon Sep 19 15:24:06 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux 1. It seems to work fine when booted in BIOS Legacy mode, however the legacy mode does not support booting from the internal eMMC, which makes this work-around useless and of course I can't install Fedora 2. In UEFI mode, I can't disable KMS because the current Intel display driver requires it. 3. I can use VESA mode in UEFI, however the display is too slow and playing movies etc. is impossible without the hardware acceleration. This problem has existed at lease since Fedora 22. Strangely however the only distro that appears to work without issue is Ubuntu 15.10. Even newer versions of Ubuntu suffer the same problem. Please see attached files
Created attachment 1219708 [details] lslbk output
Created attachment 1219709 [details] lspci output
Created attachment 1219710 [details] lsusb output
Note, the laptop has also been upgraded to the latest BIOS/UEFI v1.0.9
Is anything else needed? Please let me know.
It turns out that even having legacy boot mode enabled as an option, even you're still booing from UEFI causes video issues. Disabling legacy mode entirely is a work around. https://wiki.archlinux.org/index.php/Dell_Inspiron_11_3000_(3162)
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 25 kernel bugs. Fedora 25 has now been rebased to 4.9.3-200.fc25. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
Issues persists but as mentioned disabling legacy mode entirely is a reasonable work-around
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 25 kernel bugs. Fedora 25 has now been rebased to 4.10.9-200.fc25. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 2 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.