Red Hat Bugzilla – Bug 75565
Installer GUI mode shows corrupted display on Thinkpad 760XL
Last modified: 2007-04-18 12:47:23 EDT
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Description of problem:
On an IBM Thinkpad 760XL the installer incorrectly detects the video and
display panel, then proceeds to launch a horribly corrupted screen. The screen
appears as many shimmering colored lines. External video will not work for X at
that time. Text Terminals all work.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Since this model has no bootable cdrom and cannot have a cdrom and floppy in
the machine simultaeously you must create a 50MB DOS partition with cdrom
drivers and copy the DOSUTILs directory to it from the CD, then disable the DOS
cdrom drivers and boot with AUTOBOOT.BAT from the DOS Partition.
2.After launching AUTOBOOT.BAT skip past the CD test utility
3.At this point GUI mode provides you with a useless and corrupt display
Actual Results: The display was corrupted so setup could not continue.
Expected Results: We expected a GUI setup screen to continue setup as worked in 7.2
In Redhat 7.3 the Installer worked in GUI mode but the coruuption occured after
setup was done.
This install has been attempted on several 760XL's with multiple sets of media.
This is a very common Thinkpad and it ran RedHat 7.2 well. Please fix this.
What is the video adapter used in the 760 and also what is the native LCD panel
Trident 9385 Video @ 800x600 and 16bit
As I said under RedHat 7.2 it Autodetected and worked perfectly with a default laptop install.
If you switch to VC2 (cntl-alt-f2) and run
and page through it, can you see what the installer probed as the videocard and
Video Card: TGUI9660 (Generic)
Monitor Type: Unable to probe.
Both wrong, yet both were detected correctly under 7.2.
Looks like the hwdata is getting the wrong VGA card.
Can you post the output of lspci?
Here is the dump
00:00.0 Host bridge: Intel Corp. 430MX - 82437MX Mob. System Ctrlr (MTSC) & 82438MX Data Path (MTDP) (rev 02)
00:01.0 ISA bridge: Intel Corp. 82371FB PIIX ISA [Triton I] (rev 02)
00:02.0 CardBus bridge: Texas Instruments PCI1130 (rev 04)
00:02.1 CardBus bridge: Texas Instruments PCI1130 (rev 04)
00:03.0 VGA compatible controller: Trident Microsystems TGUI 9660/938x/968x (rev d3)
That's the correct card; looks like an X driver bug.
We don't support 8.0 anymore, however this problem has been solved
for quite a long time in RHL 9 I believe. I'm going to close it
for now as CURRENTRELEASE (Fedora Core 1), however reopen it if
the problem persists in Fedora Core 1 or RHEL 3.