Hi all, I have a Thinkpad 240 with a Neomagic NM2160 and I keep having an issue with the neomagic driver. I think I have narrowed it down to the kernel refusing to mmap the framebuffer. I created a program called testneo.c to attempt to use pci_device_map_range to access the framebuffer but it always returns 22 (Invalid argument).
[root@tpad ~]# ./testneo neomagic nm2160 found phys_base: 0xfd000000 phys_len: 0x01000000 attempt pci_device_map_range of 2MB (0x200000) // from neo_driver.c pci_device_map_range: Invalid argument I went through gdb and it does not seem to be previously mapped, so I think the error is coming from the kernel (4.14.13). Using the vesa driver does seem to work. I also tried 'nomodeset' on the kernel command-line. Is there something I am missing? KMS/DRI/vgaarb? Any suggestions are appreciated! Thanks, Alex
testneo.c
Description: testneo.c
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