https://bugs.freedesktop.org/show_bug.cgi?id=107324
Bug ID: 107324 Summary: Radeon driver fails to install with modprobe: ERROR: could not insert 'radeon': Invalid argument Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: major Priority: medium Component: DRM/Radeon Assignee: dri-devel@lists.freedesktop.org Reporter: jamesstewartmiller@gmail.com
Hi, on the following: Advanced Micro Devices, Inc. [AMD/ATI] RV770/M98L [Mobility Radeon HD 4850] on a 2009 imac running kubuntu 18.04 and kde 16.04 and kernel: 4.15.0-29-generic I'm having no luck obtaining anything but the vesa driver. The addition of nomodeset to the kernel parameters (booting from refind with no grub) is necessary to get a graphical desktop. If I leave modesetting on, the screen blacks out as the mode is changed. If I turn it off I get the vesa but an error is reported that there is no ums available in the radeon module. This has occurred on kde neon clean install and kubuntu.
Many thanks.