| Summary: | Some VGA monitors or beamer are not recognized. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | artal |
| Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
| Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 24 | CC: | btissoir, gansalmon, ichavero, itamar, jerome.steunenberg, jonathan, kernel-maint, madhu.chinakonda, mchehab |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2017-04-16 19:23:00 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
|
Description
artal
2016-10-07 07:05:19 UTC
More likely a kernel driver issue. Which card is in the laptop? This is the output of lspci -vv
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company ZBook 15u G2 Mobile Workstation
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 49
Region 0: Memory at c0000000 (64-bit, non-prefetchable) [size=16M]
Region 2: Memory at b0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at 5000 [size=64]
[virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: <access denied>
Kernel driver in use: i915
Kernel modules: i915
Same problem here on EliteBook 840 with exact same lspci output. Some additional tests: * VGA works with a monitor * VGA does not work with beamer (multiple beamers tested) * Happened after migration from F22 to F24 * Bought a DisplayPort to VGA adapter: beamer still doesn't work (In reply to Jerome Steunenberg from comment #3) > Same problem here on EliteBook 840 with exact same lspci output. > Some additional tests: > * VGA works with a monitor > * VGA does not work with beamer (multiple beamers tested) > * Happened after migration from F22 to F24 > * Bought a DisplayPort to VGA adapter: beamer still doesn't work A colleague of mine has also the same laptop in F23, same problems as me. By the way, for some beamers it works, but sometimes for the same model, some devices work and not other ones (different connectors?) It seems there are solutions; I tried to downgrade to kernel 4.6 but I did not find it in the repos. Is there any chance to have it soon in 4.8.x? https://bugs.freedesktop.org/show_bug.cgi?id=83348 https://bugs.freedesktop.org/show_bug.cgi?id=98140 I have just tried with a beamer not working some days ago (I do not remember my last try); it works now with kernel 4.8.6-201.fc24.x86_64, immediately recognized. I confirm. A simple dnf update on Fedora 24 today solves the problem. Thanks artal! I think you can close the bug. *********** MASS BUG UPDATE ************** We apologize for the inconvenience. There are a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 24 kernel bugs. Fedora 25 has now been rebased to 4.10.9-100.fc24. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those. |