[Bug 108773] i915.fastboot=1 is broken on Thinkpad S1 Yoga (Haswell)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108773

--- Comment #24 from Johannes Krampf <johannes.krampf at gmail.com> ---
After commenting out `intel_init_pch_refclk(dev_priv);` I was able to boot
successfully on drm-tip 307cedb7b907ee533bf9e746d0e06bea04f2722b from 23 May
(freedesktop git seems to be down, I couldn't update). It seems your suspicion
is correct. :-)

Running `intel_reg read 0x42014` gives me the same value when booting Arch
Linux kernel 5.1.6 (with and without loading i915) and with drm-tip and
fastboot:

```
# intel_reg read 0x42014
Error: /usr/share/igt-gpu-tools/registers/common_display.txt:1:
('CPU_VGACNTRL', '0x00041000', '')
Error: /usr/share/igt-gpu-tools/registers/haswell:1: common_display.txt
Warning: reading '/usr/share/igt-gpu-tools/registers/haswell' failed. Using
builtin register spec.
                                    (0x00042014): 0x21000002
```

-- 
You are receiving this mail because:
You are on the CC list for the bug.
You are the assignee for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20190603/feebf27f/attachment.html>