Created attachment 941728 [details] Output of lspci Description of problem: When attempting to use an integrated OR PCI graphics card (not PCIe) with setting intel_iommu=on, the boot process freezes. If the integrated graphics card is disabled by the BIOS and a PCIe graphics card is used, the boot process continues fine. Version-Release number of selected component (if applicable): Linux localhost 3.16.3-200.fc20.x86_64 #1 SMP Wed Sep 17 22:34:21 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux How reproducible: Every time Steps to Reproduce: 1. Enable the IGFX or PCI graphics card 2. Add intel_iommu=on to the kernel boot command 3. Boot Actual results: The system freezes and must be restarted manually. Expected results: The system should boot regularly. Additional info: work around: add intel_iommu=igfx_off to the kernel boot command
Created attachment 941729 [details] Output of lshw
*********** 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 20 kernel bugs. Fedora 20 has now been rebased to 3.17.2-200.fc20. 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 21, and are still experiencing this issue, please change the version to Fedora 21. If you experience different issues, please open a new bug report for those.
This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 3 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.