Red Hat Bugzilla – Bug 1461926
FB console resolution is limited to 1920x1080 on external monitor
Last modified: 2018-02-20 18:28:33 EST
Description of problem:
Issue is with frambuffer in console, when switching from UEFIfb to intel FB upon booting it switches from 2560x1440 to 1920x1080 when using external monitor on docking... It was working fine until 4.11 versions.
Version-Release number of selected component (if applicable):
F25, kernel 4.11.4-200.fc25
Lenovo X260 + docking + external monitor
Steps to Reproduce:
1. upgrade to kernel >= 4.11
3. check console FB resolution
Gettig max resolution of 1920x1080 on external monitor via docking.
Get a resolution of 2560x1440 on external monitor via docking.
Lower resolution is native to Laptop screen.
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Fedora 27 has now been rebased to 4.15.3-300.f27. 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.
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Waiting for 4.15.4-300, since cannot boot on 4.15.3-300 - black screen.
Was still an issue on previous 4.14 tree. Thanks for a response.