app_server preventing boot on live USB (hrev51702 x86)

[geminiman112]

This KDL screen appeared when trying to boot from a Haiku live USB on one of my computers. However, on my main computer, this USB boots just fine.

I had Haiku installed on this computer before. Weirdly, it was using the USB device as a bootloader. I was going to fix it today, but then this error occurred.

Later, I deleted all of the partitions on my hard drive using a Linux live CD, but this error persisted.

[waddlesplash]

I get "Error 403" when trying to view the image. Could you just attach it here?

Also, if it's actually an app_server crash, it's not a KDL but a Debugger prompt. If you type save-report at the prompt it will write a report to ~/Desktop and you can fetch it on next reboot.

[geminiman112]

It does not have a patch. I'm sorry, this site is new to me.

Edit: It was an app_server crash. Here is the report: ​https://pastebin.com/MEHuVC6i

[geminiman112]

I have looked back into this bug and it appears to be very similar to #2350.

[waddlesplash]

Indeed it does. Can you extract a syslog from the failed boot? (It will be in /var/log/syslog).

[geminiman112]

I can.

​https://pastebin.com/sABgm6fd

Edit: For some strange reason, while this bug does occur on my Sansui television, on my Dell computer monitor, the computer boots up just fine.

When I boot the machine using the Dell monitor and switch to the Sansui television, the screen goes black.

My LG television also doesn't crash, although the screen isn't fully shown and there is a glitchy bar at the bottom of the screen.

[waddlesplash]

It looks like the TV does not support any video modes that the VESA chipset on your computer also does (there is a 1024x768 mode in both but the chipset has it only in 60Hz while the TV has 75Hz.) So, not a whole lot we can do here I think, aside from #10570.

[geminiman112]

If that is the case, then why does the Haiku boot screen still load?

[waddlesplash]

Hmm, not sure, I'm not very familiar with how we output graphics at that stage. Depending on how your BIOS works we may be reusing a framebuffer from that.

[geminiman112]

Replying to waddlesplash:

Hmm, not sure, I'm not very familiar with how we output graphics at that stage. Depending on how your BIOS works we may be reusing a framebuffer from that.

I don't know if that's the case. I can change screen resolutions on the boot screen (for example, I can get 640x480 graphics mode and 16 bit color as opposed to the default to work).

[pulkomandy]

The boot screen uses vesa, and kdl and debugger prompt both use the framebuffer as app_server. So it seems we do manage to display something in a sane video mode.

[geminiman112]

Replying to waddlesplash:

It looks like the TV does not support any video modes that the VESA chipset on your computer also does (there is a 1024x768 mode in both but the chipset has it only in 60Hz while the TV has 75Hz.) So, not a whole lot we can do here I think, aside from #10570.

My TV only does 60Hz.