From: Ondrej Zary <linux@rainbow-software.org>
To: linux-fbdev@vger.kernel.org
Cc: Kernel development list <linux-kernel@vger.kernel.org>
Subject: Compiled tridentfb hangs but distribution kernel works fine
Date: Tue, 09 Dec 2014 21:33:16 +0000 [thread overview]
Message-ID: <201412092233.17030.linux@rainbow-software.org> (raw)
Hello,
I'm doing some work on tridentfb driver but encountered a weird problem.
When I compile custom kernel with tridentfb, it hangs with Blade3D card (ID
0x9880) in blade_image_blit(). The screen is blank with some artifacts and
machine does not respond to ping or keyboard. However, it can be rebooted by
Alt+SysRq+B. It works fine with other cards (3DImage 9750 and CyberBlade XP)
with no blit implementation. Commenting out contents of blade_image_blit()
function makes the hang go away (nothing useful on the screen, of course).
The weird thing is that the Blade3D card works fine when I load Debian
kernels! Debian 3.16-0.bpo.3-686-pae works fine but when I compile 3.16
kernel, it hangs.
Any ideas?
--
Ondrej Zary
WARNING: multiple messages have this Message-ID (diff)
From: Ondrej Zary <linux@rainbow-software.org>
To: linux-fbdev@vger.kernel.org
Cc: Kernel development list <linux-kernel@vger.kernel.org>
Subject: Compiled tridentfb hangs but distribution kernel works fine
Date: Tue, 9 Dec 2014 22:33:16 +0100 [thread overview]
Message-ID: <201412092233.17030.linux@rainbow-software.org> (raw)
Hello,
I'm doing some work on tridentfb driver but encountered a weird problem.
When I compile custom kernel with tridentfb, it hangs with Blade3D card (ID
0x9880) in blade_image_blit(). The screen is blank with some artifacts and
machine does not respond to ping or keyboard. However, it can be rebooted by
Alt+SysRq+B. It works fine with other cards (3DImage 9750 and CyberBlade XP)
with no blit implementation. Commenting out contents of blade_image_blit()
function makes the hang go away (nothing useful on the screen, of course).
The weird thing is that the Blade3D card works fine when I load Debian
kernels! Debian 3.16-0.bpo.3-686-pae works fine but when I compile 3.16
kernel, it hangs.
Any ideas?
--
Ondrej Zary
next reply other threads:[~2014-12-09 21:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-09 21:33 Ondrej Zary [this message]
2014-12-09 21:33 ` Compiled tridentfb hangs but distribution kernel works fine Ondrej Zary
2014-12-10 7:15 ` Mike Galbraith
2014-12-10 7:15 ` Mike Galbraith
2014-12-11 23:07 ` Ondrej Zary
2014-12-11 23:07 ` Ondrej Zary
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