PR Patrick Rudolph
- Login: siro
- Email: siro@das-labor.org
- Registered on: 11/21/2015
- Last sign in: 10/14/2026
Issues
| open | closed | Total | |
|---|---|---|---|
| Assigned issues | 2 | 4 | 6 |
| Reported issues | 13 | 8 | 21 |
Projects
| Project | Roles | Registered on |
|---|---|---|
| coreboot | Manager, Developer | 11/21/2015 |
| lava | Manager | 11/10/2018 |
Activity
10/15/2026
- PR 08:14 AM coreboot Bug #666: EDK2: MrChromebox uefipayload_2608 broken: uefipayload_2511 works on Lenovo X220
- Updated GRUB to grub2-common-2.12-32.fc42.noarch, the issue still persists.
10/14/2026
- PR 03:29 PM coreboot Bug #666: EDK2: MrChromebox uefipayload_2608 broken: uefipayload_2511 works on Lenovo X220
- That is true. It's grub2-common-2.06-118.fc38.noarch
- PR 08:56 AM coreboot Bug #666: EDK2: MrChromebox uefipayload_2608 broken: uefipayload_2511 works on Lenovo X220
- Attached a log.
After loading GRUB it jumps to a memory location where no code resides and then causes a pagefault due to invalid x86 opcodes.
10/11/2026
- PR 09:36 AM coreboot Bug #666: EDK2: MrChromebox uefipayload_2608 broken: uefipayload_2511 works on Lenovo X220
- Tested with coreboot 23115693cfdd3182633c829397f8bc5685122636
EDK2 Working 3b8ec4e6b8a343f1eba92752dcb9aee657d7a4e4
EDK2 Broken 1f9ab463057c53883245d0ce5dfe07201efb1efe
It seem to hang after the GRUB menu. Probably around ExitBoot...
10/10/2026
- PR 12:16 PM coreboot Bug #666 (New): EDK2: MrChromebox uefipayload_2608 broken: uefipayload_2511 works on Lenovo X220
- tested with coreboot 717c0505b1063da72db9aba2f1f0e1ef6dee60da
Works:
* uefipayload_2511
Broken:
* uefipayload_2608
Seems to hang in payload. Since there's no RS232 serial available, only EHCI debug works, it's not clear why it hangs.
10/03/2026
- PR 07:42 AM coreboot Bug #620 (Rejected): X230(t) does not work since commit 97dbfd3098ae12ef3f51e5f95cd6d66c25214205 was merged
- Closing since X230 and X220 are reported working, issue cannot be reproduced and wasn't further investigated by original author.
- PR 07:39 AM coreboot Bug #623 (Resolved): On T480/S, missing P-state data from ACPI tables prevents Xen from performing frequency scaling
05/08/2026
- PR 01:53 PM coreboot Bug #642: x201t Turbo boost not working, CPU running hot
- I'm not sure what else is missing.
On newer platforms BIOS_RESET_CPL needs to be written before CPU frequency can be changed and turbo is working.
I don't see that on Nehalem.
In general the code base is less maintained than newer p...
05/05/2026
- PR 05:16 AM coreboot Bug #642: x201t Turbo boost not working, CPU running hot
- Does https://review.coreboot.org/c/coreboot/+/92503 make a difference in the behaviour?
05/04/2026
- PR 06:19 AM coreboot Bug #642: x201t Turbo boost not working, CPU running hot
- Nehalem and older doesn't use the `intel_pstate` driver, but only `acpi-cpufreq`. Thus _CST generation is important for such older platforms.