Bug 860779 - Radeon HD6570 hangs on VT switching
Radeon HD6570 hangs on VT switching
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-ati (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: X/OpenGL Maintenance List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2012-09-26 13:04 EDT by Ben Aceler
Modified: 2014-09-13 14:59 EDT (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2014-01-03 12:23:58 EST
Type: Bug
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RHEL 7.3 requirements from Atomic Host:
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Description Ben Aceler 2012-09-26 13:04:02 EDT
Description of problem: after switching to console and back, the system hangs entirely, until reset button pressed.

How reproducible:
All the time. Checked three times.

Steps to Reproduce:
1. Boot to LiveUSB
2. Switch to second console by ALT+CTRL+F2
3. Login as root
4. Switch back by ALT+CTRL+F1
Actual results:
Complete hang up.

Expected results:
Gnome shell desktop.

Additional info:
Comment 1 James Whitlock 2012-09-27 08:49:11 EDT
Also seen on a Radeon HD4570

Details of setup at [https://fedoraproject.org/wiki/Test_Day:2012-09-26_Radeon] user James.

On switching to VT1 screen will enter infinite loop of flashing black and white.

Login in as root is not required. Bug is reproducible by
1. Boot to LiveUSB
2. Switch to second console by ALT+CTRL+F2
4. Switch back by ALT+CTRL+F1
Comment 2 Ben Aceler 2012-09-27 08:56:27 EDT
I didn't have flashing black and white. Just no signal.
Comment 3 James Whitlock 2013-01-15 18:03:51 EST
I just retested on Fedora 18 final release. The issue still exists.
Comment 4 Martin 2013-01-16 12:22:17 EST
Dave, is there anything we can do to help you fixing this bug?
Comment 5 Mads Kiilerich 2013-01-16 14:12:10 EST
Anecdotical evidence: I'm running Ubuntu 12.4 on such a device using evil binary drivers. The screen will remain black or frozen if one just boots. But it works if I just enter the "bios" and exit it.
Comment 6 Martin 2013-01-17 05:55:54 EST
Binary drivers are completely different code than xorg-x11-drv-ati. This is only evidence that HW is working and maybe there is some bug in BIOS. Could you try your enter BIOS and exit scenario with F18 using xorg-x11-drv-ati?
Comment 7 Martin 2013-06-11 12:01:41 EDT
Ben and James, are you able to reproduce it on latest Fedora 18 or 19?
Comment 8 James Whitlock 2013-07-04 17:05:19 EDT
I can no longer produce this issue on an up to date Fedora 19.
Comment 9 Fedora End Of Life 2013-12-21 03:57:42 EST
This message is a reminder that Fedora 18 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 18. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '18'.

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