On Sat, Aug 08, 2020 at 10:23:13AM -0600, Andy Bradford wrote:
> Hello,
> 
> The following is found in dmesg:
> 
> initializing kernel modesetting (RV610 0x1002:0x94C1 0x1028:0x0D02 0x00).
> drm:pid0:r600_init *ERROR* Expecting atombios for R600 GPU
> drm:pid0:radeondrm_attachhook *ERROR* Fatal error during GPU init
> [TTM] Memory type 2 has not been initialized
> drm0 detached
> radeondrm0 detached
> vga1 at pci1 dev 0 function 0 "ATI Radeon HD 2400 XT" rev 0x00
> wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation), using wskbd0
> wskbd1: connecting to wsdisplay0
> wsdisplay0: screen 1-5 added (80x25, vt100 emulation)


I have almost the same hardware:

initializing kernel modesetting (RV610 0x1002:0x94C3 0x1028:0x0402 0x00).
drm:pid0:r600_init *ERROR* Expecting atombios for R600 GPU
drm:pid0:radeondrm_attachhook *ERROR* Fatal error during GPU init
[TTM] Memory type 2 has not been initialized
drm0 detached
radeondrm0 detached
vga1 at pci1 dev 0 function 0 "ATI Radeon HD 2400 Pro" rev 0x00
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)


The modesetting failed, but X11 could still work with mesa. It needs
machdep.allowaperture=2 (sysctl) to be set.

You should just add "machdep.allowaperture=2" line in /etc/sysctl.conf and
reboot (this sysctl setting requires to be set at boot-time).

Thanks.
-- 
Sebastien Marie

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