Comments (10)
from coreboot.
Thanks for posting this report.
Which branches did you try? When you build coreboot from the original repository does the problem still persist?
but is there an option to choose during build to include crystallwell?
There is no such option.
from coreboot.
Maybe it's a VBIOS / gfx init issue.
I don't have a crystal well CPU yet. Could you recommend a reliable seller for these?
from coreboot.
I'd love to work on that. However I don't see your email here on github.
Mine is [email protected]
I've tried the 4712HQ (not MQ) and it works perfectly.
Makes sense as it has the same iGPU as the MQ cpus.
from coreboot.
The stock bios doesn't contain a specific Crystal Well microcode, yet seems to run just fine. Very interesting.
CPUID - Codename
306C1 - Haswell ES
306C2 - Haswell ES
306C3 - Haswell
40661 - Crystal Well
Nevertheless I will include the appropriate CW and HSW microcodes in my next releases. Can't hurt.
from coreboot.
The HD4600 is very slow when output to a 4K monitor. I want to upgrade, but I heard there is no DP output for Crystalwell cpu on T440p (https://comptoxguy0f47.blogspot.com/2019/03/thinkpad-t440pt540p-iris-pro-5200-gpu.html). Can coreboot fix this?
from coreboot.
Can you try https://review.coreboot.org/c/coreboot/+/41658
If there's still problem, please give me a log.
from coreboot.
My patch for Crystal Well has been merged upstream. I think it is solved now.
from coreboot.
Any update on this PR? I can't wait to Coreboot a 4980hq T440p.
from coreboot.
@JeffreyAbbinante You can use upstream coreboot commit 12a13e1 or later. I have tested it on desktop board ASRock H81M-HDS. I don't have a T440p now, so I don't know whether it works.
from coreboot.
Related Issues (15)
- Backlight function doesn't work HOT 5
- No start possible since version 1.2 HOT 5
- Headphone jack HOT 2
- Can't build today. Some issues with submodules. HOT 6
- T440p sd card reader not working HOT 1
- Issues building cross-compiler even though gcc-ada installed HOT 2
- Tianocore not booting HOT 1
- pcieport device [8086:8c12] error HOT 1
- build-uefi.sh "toolchain for x86_32 architecture was not found' HOT 1
- Build error: conflicting types for 'smmstore_read_region' HOT 1
- Build error: Could not add payload ... too big? HOT 1
- ectool adresses for battery thresholds
- How to add the intel microcode now? HOT 2
- Boot options not saved HOT 3
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from coreboot.