If it is a driver issue you might be able to file a bug report. You would do this via Ubuntu normally. Unless it is specific to Trisquel. You will have to test Ubuntu though to ensure that you aren't filing a Trisquel bug with Ubuntu.
Do you have the installation CD of the version which worked? If you do it
sounds like there is an easy way to test the hardware. Run from that older
version and use the live mode for testing. If the issue does not appear it's
probably a driver issue. If the issue does appear it may be a hardware issue.
- [Trisquel-users] graphics issue -- Intel 82845G/GL[Br... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue -- Intel 828... a . m
- Re: [Trisquel-users] graphics issue -- Intel 828... chris
- Re: [Trisquel-users] graphics issue -- Intel 828... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue -- Intel... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue -- Intel 828... mikko . viinamaki
- Re: [Trisquel-users] graphics issue -- Intel 828... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue -- Intel 828... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue -- Intel... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue -- I... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue ... mikko . viinamaki
- Re: [Trisquel-users] graphics issue -- Intel 828... TralfamadorianOrator
- Re: [Trisquel-users] graphics issue -- Intel 828... TralfamadorianOrator