11.1: Install fails on graphics detection

How could I get past the first boot graphics detection? It completely garbles the screen and totally hangs the computer. The same exact hardware ran 10.2 and 10.3 succesfully, I’m just trying to upgrade it into 11.1

I stopped the detection timer and tried couple of options from text console:
sax2 ## same results as in install
sax2 -a ## same results as in install
sax2 -m 0=vesa ## no gabled screen, but will never end
sax2 -r ## same results as in install

Is there a way to skip the detection or simply force VESA?
Any help or ideas are greatly appreciated as the system is currently useless and always restarts the 1st boot install.

Regards,
Jari Turkia

During install you can check a box to prevent auto-configuration.

Though if you can re-boot, get grub and pause it by moving the down arrow. Now move back to default boot and press backspace to clear any text lower down -
Now just type the number:
3
hit enter

at CLI
login as root and enter pass, then type:

sax2 -r -m 0=vesa

*(0 above is a zero)
then
reboot

this might help

Ok, great idea except how about the other devices which don’t hang on detection and which I’d very much like to have on my system?

The run-level system really does not exist yet. The system is in the middle of install. When I ctrl-alt-F2 and enter that command it does not help. Forcing VESA does not garble the screen, but it does not yield any results either.

After a reboot the firstboot system asks if I’d like to continue the install. When I clicked no, the system did go to a “normal” state. Since the install is not completed lot of stuff does not work properly.

I found SaX2 configuration log from the drive, it says:

(II) intel: Driver for Intel Integrated Graphics Chipsets: i810,
i810-dc100, i810e, i815, i830M, 845G, 852GM/855GM, 865G, 915G,
E7221 (i915), 915GM, 945G, 945GM, 945GME, 965G, G35, 965Q, 946GZ,
965GM, 965GME/GLE, G33, Q35, Q33,
Mobile Intel® GM45 Express Chipset,
Intel Integrated Graphics Device, G45/G43, Q45/Q43, G41

space: 131060 wanted 131064
(II) intel(0): [drm] removed 1 reserved context for kernel
(II) intel(0): [drm] unmapping 8192 bytes of SAREA 0xe0d11000 at 0xb79b4000
(II) intel(0): [drm] Closed DRM master.

Fatal server error:
lockup

_fence_emit_internal: drm_i915_irq_emit: -9
… and it ends there.

Found it!
Via SSH’s X11 forwarding I managed to get a SaX screen and change the settings. I just disabled 3D-acceleration and rebooted. There must be something in the Xorg driver.

Back to the original question:
Is it possible to override 1st boot detection? Or at least disable 3D acceleration?

Regards,
Jari Turkia

You get stepped through device configuration in the old way, which lets you assist and check the decisions taken.