Bug 261021

Summary: RN50 broken by new ati driver
Product: [Fedora] Fedora Reporter: Adam Jackson <ajax>
Component: xorg-x11-drv-atiAssignee: Adam Jackson <ajax>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: medium    
Version: rawhideCC: jfrieben
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: All   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2007-10-09 15:46:28 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
GDB backtrace for driver version 6.7.194
none
Xorg.0.log for current git snapshot of ATI driver
none
Xorg.0.log for current git snapshot of ATI driver none

Description Adam Jackson 2007-08-28 17:10:45 UTC
Description of problem:

Only one CRTC, makes things go boom.

restore common
restore crtc1
restore pll1
finished PLL1

Program received signal SIGSEGV, Segmentation fault.
RADEONInitDispBandwidth2 (pScrn=0x8dc7ea0, info=0x8dc8358, pixel_bytes2=4, 
    mode1=0x0, mode2=0x0) at radeon_display.c:507
507         pix_clk = mode1->Clock/1000.0;



Version-Release number of selected component (if applicable):

xorg-x11-drv-ati-6.7.192-1.fc8

Comment 1 Adam Jackson 2007-08-28 17:17:18 UTC
Not just an RN50 problem, more like a general 1-CRTC problem.  Affects Radeon
7200 too.

Comment 2 Adam Jackson 2007-09-27 14:29:18 UTC
*** Bug 305921 has been marked as a duplicate of this bug. ***

Comment 3 Joachim Frieben 2007-09-29 09:22:09 UTC
Upstream reference is https://bugs.freedesktop.org/show_bug.cgi?id=12490

Comment 4 Joachim Frieben 2007-10-02 08:30:25 UTC
Created attachment 213171 [details]
GDB backtrace for driver version 6.7.194

Comment 5 Joachim Frieben 2007-10-03 10:50:11 UTC
Created attachment 214481 [details]
Xorg.0.log for current git snapshot of ATI driver

Rebuilding xorg-x11-drv-ati-6.7.194-1.fc8 after replacing the tarball with the
current GIT snapshot (which contains corresponding changes by A. Deucher), the
X server comes up without crashing. It crashes upon switching to a virtual
console but this is still much better than before.
The downside is that the X server now ignores the 1400x1050 mode entry in
xorg.conf and defaults to 1280x1024 at 85Hz which it didn't do before. After
removing the 1400x1050 mode entry from xorg.conf, the X server still defaults
to 1280x1024 at 85Hz but at least now, the GNOME display preferences allow the
user to change the resolution to 1600x1200 at 75 Hz whereas before, only lower
resolutions were present. However, the 1400x1050 mode has disappeared
completely. This may be specific to the Fedora version though which features
some additional patches which might be relevant.

Comment 6 Joachim Frieben 2007-10-03 11:09:35 UTC
Created attachment 214491 [details]
Xorg.0.log for current git snapshot of ATI driver

Comment 7 Joachim Frieben 2007-10-04 11:19:53 UTC
The current git tree solves both the X server start-up crash and the VT switch
crash. Probably time for an update ..

Comment 8 Joachim Frieben 2007-10-05 08:32:17 UTC
Issue solved by xorg-x11-drv-ati-6.7.194-3.fc8.

Comment 9 Adam Jackson 2007-10-09 15:46:28 UTC
Closing per comment #8.