http://bugzilla.kernel.org/show_bug.cgi?id=11938
Summary: Switch to VESA mode hangs on HD4850
Product: Drivers
Version: 2.5
KernelVersion: 2.6.27.4
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Video(DRI)
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
Latest working kernel version: 2.6.19
Earliest failing kernel version: No idea
Distribution: Debian Lenny
Hardware Environment: Athlon X2 5600, Asus m2m32ws prof, 4GB, HD4580 gfx
Software Environment:
Problem Description:
I habe a new Club 3D ATI HD4850 (OC edition), that refuses to activate VESA
mode. I don't get an error message, it just hangs forever with x.org 7.2 "vesa"
driver. Also no boot time logo or in fact text output when compliling for
framebuffer and seting vga=<anything> in the mode question. Reboot with
CTRL-ALD-DEL still works, which is nice. The strange thing is that it worked
for 2 days or so and then stopped, despite no updates to the Linux installation
that I can recall. (I also run XP on this machine, if the Windows driver can
screw the card up so that even removal and re-instertion does not help, that
may be the source of the problem...).
I tried with the lates non DVD Knoppix, and it works. That is Kernel 2.6.19.
Unfortunately I cannot compile a kernel this old on Lenny (dome linking error
at the end). I downloaded all the Changelogs between 2.6.19 and 2.4.27.4 and
looked for "VESA", but could not identify a change that is likely to have
caused this problem. Any advice as which kernels I should try? Any debugging
advice?
Side note: The ATI drivers do not work with 2.6.27.* either, and I rather would
not use them anyways.
Steps to reproduce: Compile kernel with VESA framebuffer support, see system
not display any text after switching to VESA mode. Not hang, as rebooting still
works, just no display. Also see hanging forever with x.org 7.2 VESA driver.
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