Bug 71341
| Summary: | [ivb dp->vga dongle] link traing failures | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Igor Raits (igor.raits) |
| Component: | Video(DRI - Intel) | Assignee: | Jani Nikula (jani.nikula) |
| Status: | RESOLVED INVALID | ||
| Severity: | normal | CC: | daniel, igor.raits, intel-gfx-bugs, ville.syrjala |
| Priority: | P3 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 3.14.0-0.rc4.git0.1.fc21.x86_64 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
dmesg
journalctl -b |
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Description
Igor Raits
2014-03-01 15:18:09 UTC
Reference to dmesg: it contains more than one kernel oops, but all of that related to this bug. Please boot with drm.degug=0xe added to your kernel bootline, reproduce the issue and then attach a new, complete dmesg. Created attachment 127811 [details]
journalctl -b
I've attached `journalctl -b`, because couldn't find kernel oops in dmesg. Link training failures, hooray. Can you please retest with latest drm-intel-nightly from http://cgit.freedesktop.org/drm-intel that should have patches to shut up things and keep the dp output working a bit better. Besides the WARNINGs, is there any issue with your dp->vga dongle? (In reply to Daniel Vetter from comment #5) > Link training failures, hooray. > > Can you please retest with latest drm-intel-nightly from > > http://cgit.freedesktop.org/drm-intel > > that should have patches to shut up things and keep the dp output working a > bit better. Ok. I'll try tonight. > Besides the WARNINGs, is there any issue with your dp->vga dongle? I think no, because it's new from ThinkPad X1 Carbon kit I have an x1 carbon and the mini DP->VGA dongle that came with it works just fine for me. Well, it has one issue where the VGA HPD only works one time, and then if I disconnect and reconnect the VGA connector, I actually have to disconnect+reconnect the entire dongle to detect the display. But that could be a problem of the dongle itself, since VGA HPD works just fine the first time. Otherwise the dongle seems to work without issues, and no link training failures for me. This is what is written on my mini DP->VGA dongle: Model P/N: STM STDP3100 ASM P/N: 0A 36579 FRU P/N: 03X 6601 REV: 1.3 (In reply to Ville Syrjala from comment #7) > I have an x1 carbon and the mini DP->VGA dongle that came with it works just > fine for me. Well, it has one issue where the VGA HPD only works one time, > and then if I disconnect and reconnect the VGA connector, I actually have to > disconnect+reconnect the entire dongle to detect the display. But that could > be a problem of the dongle itself, since VGA HPD works just fine the first > time. Otherwise the dongle seems to work without issues, and no link > training failures for me. > > This is what is written on my mini DP->VGA dongle: > Model P/N: STM STDP3100 > ASM P/N: 0A 36579 > FRU P/N: 03X 6601 > REV: 1.3 Where you found this parameters? (In reply to Igor Gnatenko from comment #8) > (In reply to Ville Syrjala from comment #7) > > I have an x1 carbon and the mini DP->VGA dongle that came with it works > just > > fine for me. Well, it has one issue where the VGA HPD only works one time, > > and then if I disconnect and reconnect the VGA connector, I actually have > to > > disconnect+reconnect the entire dongle to detect the display. But that > could > > be a problem of the dongle itself, since VGA HPD works just fine the first > > time. Otherwise the dongle seems to work without issues, and no link > > training failures for me. > > > > This is what is written on my mini DP->VGA dongle: > > Model P/N: STM STDP3100 > > ASM P/N: 0A 36579 > > FRU P/N: 03X 6601 > > REV: 1.3 > Where you found this parameters? It's written on the dongle. I've triee this dongle on windows. It works ok there.... Sorry. Forget about this bug. Will try again on Fedora with latest git. (In reply to Igor Gnatenko from comment #11) > Sorry. Forget about this bug. Will try again on Fedora with latest git. Okay. |