Hi,
The machine (Atom 330 CPU, ION chipset, GeForce 9400M graphics) works, but graphics are dead. Dmesg shows the following (Linux 6.16-rc5): [ 34.408331] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 34.408351] #PF: supervisor instruction fetch in kernel mode [ 34.408358] #PF: error_code(0x0010) - not-present page [ 34.408364] PGD 0 P4D 0 [ 34.408373] Oops: Oops: 0010 [#1] SMP [ 34.408383] CPU: 2 UID: 0 PID: 583 Comm: Xorg Not tainted 6.16.0-rc5-dbg+ #187 PREEMPTLAZY [ 34.408393] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080015 08/13/2009 [ 34.408399] RIP: 0010:0x0 [ 34.408414] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 34.408420] RSP: 0018:ffff88800378bc08 EFLAGS: 00010202 [ 34.408428] RAX: ffffffff82071c60 RBX: ffff888008e6f000 RCX: 0000000000000978 [ 34.408434] RDX: 0000000000000020 RSI: 0000000000000002 RDI: ffff888008e6f000 [ 34.408440] RBP: ffff88800378bd18 R08: 0000000000000000 R09: 00000000000003ff [ 34.408445] R10: 0000000000000000 R11: ffff88800378bcc0 R12: ffff88800378bdb8 [ 34.408451] R13: ffff888007dad9c0 R14: ffff888004285680 R15: ffff888007e671c0 [ 34.408457] FS: 00007f2cc7b2eb00(0000) GS:ffff888149ecf000(0000) knlGS:0000000000000000 [ 34.408464] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.408469] CR2: ffffffffffffffd6 CR3: 0000000008a08000 CR4: 00000000000006f0 [ 34.408475] Call Trace: [ 34.408482] <TASK> [ 34.408486] nouveau_gem_ioctl_pushbuf+0x10d8/0x1240 [ 34.408504] ? nouveau_gem_ioctl_new+0x160/0x160 [ 34.408513] drm_ioctl_kernel+0x7a/0xe0 [ 34.408524] drm_ioctl+0x1ef/0x490 [ 34.408532] ? nouveau_gem_ioctl_new+0x160/0x160 [ 34.408541] ? __handle_mm_fault+0xff2/0x1510 [ 34.408552] nouveau_drm_ioctl+0x50/0xa0 [ 34.408560] __x64_sys_ioctl+0x4be/0xa90 [ 34.408570] ? handle_mm_fault+0xb5/0x1a0 [ 34.408578] ? lock_mm_and_find_vma+0x34/0x170 [ 34.408587] do_syscall_64+0x51/0x1d0 [ 34.408596] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 34.408605] RIP: 0033:0x7f2cc7d2f9dd [ 34.408612] Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00 [ 34.408620] RSP: 002b:00007fff6a501ee0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.408628] RAX: ffffffffffffffda RBX: 000055c7792b3f78 RCX: 00007f2cc7d2f9dd [ 34.408634] RDX: 00007fff6a501fa0 RSI: 00000000c0406481 RDI: 0000000000000011 [ 34.408640] RBP: 00007fff6a501f30 R08: 0000000000000978 R09: 000055c7792af740 [ 34.408645] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fff6a501fa0 [ 34.408651] R13: 00000000c0406481 R14: 0000000000000011 R15: 000055c7792ac700 [ 34.408660] </TASK> [ 34.408664] Modules linked in: [ 34.408671] CR2: 0000000000000000 [ 34.408678] ---[ end trace 0000000000000000 ]--- [ 34.408682] RIP: 0010:0x0 [ 34.408691] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 34.408696] RSP: 0018:ffff88800378bc08 EFLAGS: 00010202 [ 34.408703] RAX: ffffffff82071c60 RBX: ffff888008e6f000 RCX: 0000000000000978 [ 34.408709] RDX: 0000000000000020 RSI: 0000000000000002 RDI: ffff888008e6f000 [ 34.408715] RBP: ffff88800378bd18 R08: 0000000000000000 R09: 00000000000003ff [ 34.408720] R10: 0000000000000000 R11: ffff88800378bcc0 R12: ffff88800378bdb8 [ 34.408726] R13: ffff888007dad9c0 R14: ffff888004285680 R15: ffff888007e671c0 [ 34.408731] FS: 00007f2cc7b2eb00(0000) GS:ffff888149ecf000(0000) knlGS:0000000000000000 [ 34.408738] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.408743] CR2: ffffffffffffffd6 CR3: 0000000008a08000 CR4: 00000000000006f0 [ 34.408750] note: Xorg[583] exited with irqs disabled Unfortunately, bisecting is not feasible for me. Best regards, Rui
