Bug 549982

Summary:	x11-drivers/xf86-video-intel-2.99.917 freezes whole pc after starting X
Product:	Gentoo Linux	Reporter:	Porcupine of the Moon <porcupineofthemoon>
Component:	[OLD] Unspecified	Assignee:	Gentoo X packagers <x11>
Status:	RESOLVED NEEDINFO
Severity:	normal	CC:	maggu2810, walch.martin
Priority:	Normal
Version:	unspecified
Hardware:	x86
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Porcupine of the Moon 2015-05-20 18:18:01 UTC

After update to x11-drivers/xf86-video-intel-2.99.917 computer freezes after starting X. Display shows colorful noise. 

Computer: eee PC Asus H1000
CPU: Intel N280 with Intel Corporation Mobile 945GSE Express Integrated Graphis Controller

Downgrade to version 2.99.916 solves the problem.

Reproducible: Always

Steps to Reproduce:
1. Upgrade to 2.99.917
2. Reboot 

Actual Results:  
Computer freezes after starting X. Display shows colorful noise. 

Expected Results:  
Computer should work without freeze.

Comment 1 Mike Gilbert gentoo-dev

2015-05-29 00:56:09 UTC

I have no idea how to troubleshoot this, so I'm passing this to x11.

Comment 2 Chí-Thanh Christopher Nguyễn gentoo-dev

2015-05-30 09:40:37 UTC

If the whole computer freezes (no longer reacts to ping/magic SysRq/etc.) then it is likely a kernel issue, not X.

Comment 3 Porcupine of the Moon 2015-05-30 11:58:09 UTC

I can confirm that not ping was possible.

Comment 4 Martin Walch 2015-08-18 18:45:16 UTC

Are you really, really sure that it completely freezes?

There is a problem with Gen3/4 Intel graphics chips when using x11-drivers/xf86-video-intel-2.99.917 with sna acceleration (which is the default setting), which may completely freeze the display and it is hard to debug, but it is fixed with x11-drivers/xf86-video-intel-2.99.917-r2.

Comment 5 Porcupine of the Moon 2015-08-19 19:49:06 UTC

(In reply to Martin Walch from comment #4)
> Are you really, really sure that it completely freezes?
> 
It's some time ago, but I remember the description above to be accurate. 
It was not possible to switch to a console by Ctrl + Alt + Fx, no Ctrl + Alt + Backspace, no Ctrl + Alt + Del. As mentioned above also no response to ping.

Comment 6 Rémi Cardona (RETIRED) gentoo-dev

2015-08-24 17:51:26 UTC

(In reply to mdc from comment #5)
> It was not possible to switch to a console by Ctrl + Alt + Fx, no Ctrl + Alt
> + Backspace, no Ctrl + Alt + Del. As mentioned above also no response to
> ping.

Do try the SysRq keys next time it happens. If they work, then the kernel is not completely frozen.

Run "sysctl kernel.sysrq" to make sure they are enabled (a value of 1).

https://en.wikipedia.org/wiki/Magic_SysRq_key#Uses has a nice set of magic keys to "cleanly" reboot a seemingly frozen system.

Cheers

Comment 7 Tobias Roeser 2015-09-07 10:00:19 UTC

I can confirm this issue with on ThinkPad X60s with has a Gen 3 Intel graphics chip. With x11-drivers/xf86-video-intel-2.99.917 and also x11-drivers/xf86-video-intel-2.99.917-r2 the laptop freezes, the screen shows garbage color artifacts. Downgrading to x11-drivers/xf86-video-intel-2.99.916 "fixes" the issue. I have not tried the SysRq features to verify if the PC freezes "completely" or only almost. At least, non of the usual ways to shutdown/reboot worked, e.g. pressing the power button (which is bound to shutdown via ACPI).

Comment 8 Chí-Thanh Christopher Nguyễn gentoo-dev

2015-09-07 10:07:43 UTC

After X starts, it will take control over all input devices, including the power button (which counts as an input device too).
You have to wrestle back control from the X server through Alt+SysRq+R if it hangs.

Comment 9 Chí-Thanh Christopher Nguyễn gentoo-dev

2015-10-29 14:01:37 UTC

Please reopen when you can provide the requested information.