linux-kernel - Re: [Regression: 2.6.25-rc5: Blank Screen: Intel 945]

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 31 Mar 2008 12:24:36 -0700
From:	Justin Madru <jdm64@...ab.com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
CC:	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [Regression: 2.6.25-rc5: Blank Screen: Intel 945]

Jesse Barnes wrote:
> So somehow both pipes are getting disabled, and your LCD is getting turned
> off and things never get re-enabled.  The X driver should have turned things
> back on though, after detecting what's available.  Do you have your X logs
> from the working & broken cases?  Also, did you try reproducing the blank
> screen problem w/o gdm enabled as Bryce suggested?  That could help narrow
> down if it's just an intelfb problem vs. a new intelfb/X driver interaction
> bug.

Well, I disabled gdm and tryed to trigger the blank screen. I did about ~16 reboots and it blanked out on me only 2 times.
I was using a script to reboot and/or startx. One time I'm not exactly sure if X was started, so it might have blanked out on a "startx".
The other time I'm fairly sure X wasn't started, so it blanked out on a terminal login.

Both of the blank outs were different than the ones with gdm started. Pressing ctrl+alt+f# changed nothing on the screen;
the screen seemed almost completely off (no or little backlight). A few seconds after pressing the power button the shutdown splash screen would show, but this time it was _very_ faint.

Usually, when gdm is enabled, pressing ctrl+alt+f# would "refresh" (or mode/resolution change) the screen, but it would still be blank.
Also the backlight still seamed to be on and at full brightness (although, still displaying black).

Well, I don't know what to say, it's the strangest of problems.

Justin

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/