hello,
I'm seeing something somewhat similar: xorg "Segmentation fault" related to 
i915 driver. Replicated on both 6.8.0.51 and 6.8.0.79 kernel.
My use case is much simpler though: it is a fresh linux mint 22.1 xfce on eee 
pc 1011PX
After I login to the X session with my user, about 10s-15s into the session, 
the X session crashes and i'm logged out. 

Xorg.0.log.old:
```
[    29.556] (II) intel(0): Modeline "1024x600"x0.0   54.20  1024 1048 1184 
1344  600 603 609 670 -hsync -vsync (40.3 kHz eP)
[    71.550] (EE) 
[    71.551] (EE) Backtrace:
[    71.554] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x14c) [0x5b3b9ef940bc]
[    71.558] (EE) 1: /lib/x86_64-linux-gnu/libc.so.6 (__sigaction+0x50) 
[0x73edd3c45330]
[    71.564] (EE) 2: /lib/x86_64-linux-gnu/libpciaccess.so.0 
(pci_device_vgaarb_set_target+0x117) [0x73edd41fb4b7]
[    71.566] (EE) 3: /usr/lib/xorg/Xorg (DRICreatePCIBusID+0x39a0) 
[0x5b3b9ee73190]
[    71.568] (EE) 4: /usr/lib/xorg/Xorg (xf86SetDGAMode+0x838) [0x5b3b9ee55f08]
[    71.569] (EE) 5: /usr/lib/xorg/Xorg (XaceIsLocal+0x5c8e) [0x5b3b9eecd56e]
[    71.571] (EE) 6: /usr/lib/xorg/Xorg (XaceIsLocal+0x5e02) [0x5b3b9eecd6e2]
[    71.573] (EE) 7: /usr/lib/xorg/Xorg (SendErrorToClient+0x370) 
[0x5b3b9ee14ac0]
[    71.575] (EE) 8: /usr/lib/xorg/Xorg (InitFonts+0x3ca) [0x5b3b9ee18eda]
[    71.578] (EE) 9: /lib/x86_64-linux-gnu/libc.so.6 (__libc_init_first+0x8a) 
[0x73edd3c2a1ca]
[    71.581] (EE) 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0x8b) 
[0x73edd3c2a28b]
[    71.582] (EE) 11: /usr/lib/xorg/Xorg (_start+0x25) [0x5b3b9ee01395]
[    71.583] (EE) 
[    71.583] (EE) Segmentation fault at address 0x30
[    71.583] (EE) 
Fatal server error:
[    71.583] (EE) Caught signal 11 (Segmentation fault). Server aborting
```

I've noticed that when I start the session from the recovery mode it doesn't 
happen. 
In the end i've found that adding the "nomodeset" parameter in the grub loading 
also fixes the issue

`lshw -c video` output is different in both cases
- When it works (nomodeset or from recovery), both displays appear with status 
"unclaimed" (VGA compatible controller and Display controller) and no driver is 
attached ("Configuration" line)
- In normal boot where X fails, the "VGA compatible controller" is bound to 
i915 driver: 

```
configuration: depth=32 driver=i915 latency=9 resolution=1024*600
```

Not sure how linux can work with apparently no display driver, but it
works :D

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/2012832

Title:
  Xorg crashes on second and next unbind operations of Arc GPU

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2012832/+subscriptions


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