UEFI Boot Loader: Black screen with Haiku revisions > 55219

[andreas_dr]

Hi,

Seems like bootloader with UEFI is broken with rev > 55219 as it only shows a black screen. Also pressing space does not help.

I attach some files related to my computer as reference that might help to find out whats going on.

Also the computer does not seem to be hanging as I accepts NUMLOCK and changes NUMLOCK lamp. :D

It just shows a black screen.

[Maxis]

I confirm this bug. In my case even num lock and caps lock don't work. I have machine CPU: AMD Athlon 5350(4 Cores), MB: ASRock AM1B-ITX, GPU: AMD Radeon RX 550 2GiB, RAM: 16 GiB. I bisected problem and found out that in hrev55299 UEFI bootloader doesn't work but working in hrev55296. May be it related to X512's commit ​https://git.haiku-os.org/haiku/commit/?id=f1fa58bfbc7578fd0c8ac2c974dd2c7f3be7bec4

[tqh]

I know at least one thing with mmu regions in that change was fixed later on. Can you try recent hrevs efi loaders?

[Maxis]

I retested with latest hrev55754 and the bug is still exist.

[waddlesplash]

hrev55216 is the suspect commit. That caused problems on my hardware in its original version, but I think it has been fixed since.

CC jessicah, kallisti5.

[pulkomandy]

Marking as blocker as it's a non-booting system regression.

[kallisti5]

This issue isn't easily reproducible.. but we have a few data points:

• andreas_dr
  • Host: AMD Ryzen 9 3950X 16-Core Processor (2019), MB: "X370 Gaming X"
  • Description: "Only shows black screen"
• Maxis
  • Host: AMD Athlon 5350(4 Cores) (2015) , MB: ASRock AM1B-ITX
  • Description: "In my case even num lock and caps lock don't work"

I think we need to build confidence about a few things:

• "black screen" could be a failed framebuffer or radeon_hd driver. We need clarification around behavior. Do the bootloader icons show up? What troubleshooting steps have been attempted?
• How is haiku being booted? USB, CD, NVMe, etc?

I have a Ryzen 9 5950X and Haiku EFI is booting just fine via EFI. (I need to confirm the EFI loader version though)

[tqh]

If anyone can compile the bootloader, try changing this line: ​https://github.com/haiku/haiku/blob/d223f9d9c2967e2055bf68b22f6a5a4e22276065/src/system/boot/platform/efi/serial.cpp#L54 to

if (sSerialUsesEFI) {
 if (sSerial == NULL) return;

[jessicah]

For Andreas, it's definitely the partitioning change that introduced the failure, I've already confirmed that with him, by providing a number of loader variants in the past.

[jessicah]

Test loader to try: ​https://github.com/jessicah/jessicah.github.io/raw/master/haiku_loader.efi

[jessicah]

Actually, I don't think that previous one is the right fix, but do try it anyway.

My next fix to try: https://dev.haiku-os.org/raw-attachment/ticket/17375/haiku_loader.efi

[jessicah]

V2 haiku_loader.efi

[Maxis]

Replying to kallisti5:

• "black screen" could be a failed framebuffer or radeon_hd driver. We need clarification around behavior. Do the bootloader icons show up? What troubleshooting steps have been attempted?
• How is haiku being booted? USB, CD, NVMe, etc?

Bootloader's icons didn't show up. Im my case pressing space button did not work. Haiku booted with USB

[Maxis]

Replying to jessicah:

Actually, I don't think that previous one is the right fix, but do try it anyway.

My next fix to try: https://dev.haiku-os.org/raw-attachment/ticket/17375/haiku_loader.efi

This fix did not help in my case. I renamed dowloaded haiku_loader.efi into bootx64.efi and replaced original bootx64.efi located at /haiku esp/efi/boot/bootx64.efi

[Maxis]

jessicah
I checked latest hrev56168 and bug was fixed. Thanks!

[korli]

fixed in hrev56167

[jessicah]

That was an unrelated fix, will await confirmation from Andreas.

[jessicah]

Says it's working with current nightly, so closing, but the commit that supposedly broke booting shouldn't have been fixed by hrev56167.